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| ABSTRACTS |
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Argyris
Arnellos
Thomas Spyrou
John Darzentas |
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Naturalising the Design Process: Autonomy
and Interactivity as the Core Features |
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The design process could be abstractly considered as a future-creating
activity that goes beyond facticity and creates visions of a desirable
future among groups of agents. It requires the engagement of individual
or groups of cognitive systems in purposeful and intentional (meaning-based)
interactions with their environment and consequently with each other.
It is argued that a design process should be interactive, future-anticipatory
and open-ended. Furthermore, a framework explaining and supporting
such a design process should have as its basis a framework of cognition.
The cognitivist and the etiological approaches to cognition are
examined with respect to the set of principles explaining the design
process. It is shown that essential properties such as, meaning
representation and intentionality which surround the notion of cognition,
but are differently interrelated and considered in each approach,
affect and limit in different ways the design process. Particularly,
it is argued that the cognitivist and the etiological approaches
cannot support the type of functionality needed for the anticipative
interaction of the cognitive system engaging in the design process,
and the respectively implied notions of autonomy are deemed inadequate
to support a naturalistic explanation of the design process.
It is suggested that the design process should primarily be examined
within an interactive framework of cognition based on 2nd order
cybernetic epistemology. Future-oriented anticipation requires functionality,
which can be thought of as a future-directed activity, and in turn,
all but the simplest functioning requires anticipation in order
to be effective. Therefore, anticipation is an integral feature
of autonomous systems because of their need to shape the dynamical
interaction with their environment in ways that they achieve the
kind of functionality that contributes to the enhancement of their
autonomy. Based on the fundamental notions of closure, self-reference
and self-organisation, a cybernetically-inspired systems-theoretic
notion of autonomy is proposed. This conception of autonomy is immediately
related to the anticipative functionality of the cognitive system,
which constructs emergent representations while it interactively
participates in a design process.
Consequently, the design process is seen as an interaction between
two or more self-organising autonomous systems in order to construct
ever more adaptive representations towards ill-defined outcomes.
For each self-organising system a different representational content
is dynamically emerging from their mutual attempts to incorporate
an artefact, as a perturbation and not as a static informational
structure, into their organization. Therefore, the design process
is considered as a purposeful communication between two or more
self-organising systems via the use of an artefact as the common
cognitive interface in order to maintain and enhance their autonomy.
It is argued that such a kind of autonomy is fundamental for the
interactive establishment and the designation of the open-ended
nature of the design process.
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| John Collier |
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Is truth a value in naturalized epistemology?
If so, is it a natural value? |
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There are two ways to look at the role
of truth in naturalized epistemology. On the one hand, following more
or less along the lines of Quine and Putnam, and probably Lewis, we
can regard truth as a result of successful representation, where we
hold all the cards as far as what gives a representation meaning.
(Putnam 1980: 482 says "We interpret our language or nothing
does".) The rest is psychology. Either our representations are
true on an ideal theory of psychology and physics, or they are not.
Ideality satisfies all of our methodological requirements (determining
our epistemic values). Truth does not enter as a value, though it
may be useful as something to think about. It should be noted, however,
that for Quine maximal observationality and occasionality ensures
that our terms referring to such things are accurate. But this ideal
can never be fully reached. This leaves room for Goodman's new riddle
of induction, which allows scepticism about the application of even
the simplest sensory terms.
On the other approach, generally a form of pragmatism, such as Rescher's
Methodological Pragmatism (1977), all values are practical, and truth
emerges as a value because of its practicality. Rescher argues that
although many beliefs may be valuable for practical reasons, truth
is especially valuable because of its generality. He also argues that
truth is a special value for science. So let us assume that truth
is of pragmatic value, and not merely something we might achieve incidentally
by other means.
Is truth, then, a natural value, or is it in some sense artificial?
I will argue that much turns on whether representation is natural
or artificial, and that with an evolutionary perspective truth has
much the same sort of value as nutrition or water.
References
Putnam, Hilary. 1980. Models and Reality. Journal of Symbolic Logic
45: 464-482.
Rescher, Nicholas. 1977. Methodological Pragmatism. Oxford: Basil
Blackwell. |
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| Don Favareau |
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In order to arrive at a genuinely "naturalized"
epistemology, one must remember not to put Descartes before the horse |
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Any attempt to naturalize epistemology
is going to have to confront, sooner or later, the need for an effective
theory of sign relations, as such epistemic relations are instantiated
ubiquitously both in animal nature and in human culture. Accordingly,
an exclusive focus on the evolutionarily latest, and in many ways,
the most anomalous instantiation of sign-use - i.e., human language-based
cognition and the abstract propositional logic that it enables - may
not be the most fruitful way of going about trying to "naturalize"
epistemology. Indeed, and as I will argue in this presentation, doing
so may be precisely what prevents such a project from truly getting
underway to begin with. An alternative approach, one that joins the
semiotic logic of pragmaticist Charles S. Peirce with the non-anthropomorphic
animal phenomenology of Jakob von Uexküll, may provide more fecund
ground as its starting point. This approach considers the active establishment
of sign relations between agents and their surrounds as the primordial
basis of all cognition - from the evolutionarily-instantiated "knowing"
that is the reliable, world-tested, but non-mental repertoire of perception-action
patterns guiding the successful actions of invertebrates to the self-conscious,
linguistically articulated set of recursively laminated sign processes
that we humans are relying on as we ask questions (and seek reasonable
answers) regarding "the relationship between the meager input
and the torrential output" made possible by our own peculiar
form of sign processing.
But such reasonable understandings, I want to argue here, will not
be forthcoming by reliance on a naive sociobiological reductionism,
for the development of human beings' species-specific form of "knowing"
has layered an emergent structure for the interpretation of experience
that is not eliminatively reducible to its more primitive epistemic
support. Nor, however, can an exclusively reliance on "thought
experiments" suffice in determining those relations in nature
that make such thought experiments possible in the first place. This
talk, then, will be an attempt to sketch out a general 'big picture'
way of distinguishing between the brute perceptual, reliably associative,
and maximally flexible (or virtual) sign relations (corresponding
to the Peircean hierarchy of iconic, indexical and symbolic relations)
that underlie the abilities of living organisms to detect, categorize,
and act appropriately upon the world - and, in at least one possibly
unique case (which is our own), to reason about such phenomena itself
through the publicly shared semiotic prosthesis that is language. |
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| Daniel Fernandez |
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The Relevance of Sellars and Heidegger to the Internalism-Externalism
Debate
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The purpose of this text is twofold. First, it seeks to highlight
a parallel in the epistemological strategies of 20th century analytic
and continental philosophy. In Martin Heidegger and in Wilfrid Sellars,
we see a sort of maverick Kantianism that in one way or another
takes its cue from the dictum that "thoughts without content
are empty; intuitions without concepts are blind". In different
ways, Sellars' psychological nominalism and Heidegger's notion of
Vor-struktur present perception, awareness of our mental states
and introspective reports as being derivative of the rules governing
discourse about public objects. Each tries to maintain the irreducibility
of intentional idioms by showing how mindedness, which includes
capacities to make perceptual reports and to engage in theoretical
and practical inference, supervenes on the normative structure of
some sort of Lebenswelt or form of life. The impetus for this structure
is a resistance to what Sellars called the "given": the
alleged immediacy of the content of any intention or perception.
Within this context, objects of perception exist only to the extent
that the concepts of a Lebenswelt make them cognitively accessible.
Secondly, I argue that while these broadly internalist positions
have an element that is worth defending in contemporary epistemological
debates, they have a potential a blind spot. Here, I attempt to
demonstrate the possibility of experiences for which no semantic
concept is anteriorly given. I thus argue that the epistemic and
semantic forms of internalism described in this paper must be supplemented
with an "externalist reservation".
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| Maria Frapolli |
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Truly Truthful to Truth: How to explain
truth in natural terms without denaturalizing it |
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We will present a naturalistic account of the truth operator in
natural languages focusing on the pragmatic role of truth ascriptions.
What speakers do with truth-words is the point of departure of our
enquiry. Once the pragmatic features of truth-terms are attended,
we will explain the semantic and syntactic roles performed by the
truth operator. Truth is a complex and multi-functional operator.
The various jobs reserved to the truth operator in natural languages
are performed with the help of different expressions belonging to
diverse grammatical and logical categories. It can appear as a predicate,
as in the locution "is true", or as an adverb, "truly".
It can appear as a sentence operator, as in "It is true that",
or as an abstract substantive, "the Truth". Besides, it
has to be distinguished between the definition of the concept, a
mission for the philosophy of language, and the various contexts
in which the truth operator shows its utility. These contexts can
belong to epistemology or to metaphysics, to philosophy of science
or to ethics. But in order to understand what truth does in them,
it is crucial to have a clear understanding of its meaning and role
within language.
One of the theses developed will be that truth is unique although
there are many truths, or said more precisely, that although the
content of a particular truth ascription can be any element of a
wide range of propositions, the truth operator is not ambiguous
in natural languages. The phenomenon of ambiguity is related to
meaning and at the level of meaning truth performs the same task
across contexts. Truth ascriptions, on the other hand, acquire new
contents in every new context, but this fact doesn't have anything
to do with ambiguity. Truth ascriptions work in natural languages,
we will maintain, as complex propositional variables, i.e., sentences
with a fixed meaning able to transmit many different contents depending
on contextual factors. A truth ascription such as "What Victoria
told you was true" does not have any content if it is deprived
of a suitable context of use. This ascription might have as a content
that Joan was at school or that Darwin was basically right in his
picture of how species develop, depending on the particular content
of the speech act performed by Victoria, to which the truth ascription
refers.
Our approach to the analysis of truth will be plural. We will pay
attention to the pragmatist account of language elaborated during
the last century and also to the semantic and syntactic proposals
offered by philosophers of language, linguists and formal semanticists.
Our intention will be to propose a comprehensive explanation of
the syntactic, semantic and pragmatic aspects of the truth operator
and give a structured theory capable of explaining the role of truth,
its significance and the real weight of some of the difficulties,
puzzles and paradoxes related to the concept.
Being plural, our approach to the topic has a defined structure.
We take the pragmatic level, i.e. what speakers do with words, as
the foundational level. To understand the notion of truth one has
to understand what speakers use it for. On top of that, it is the
job of theorists to propose semantic hypotheses able to explain
the meaning of the linguistic complex in which truth-terms appear
and also syntactic conjectures that account for its combinatorial
traits. The speaker's practices are the hard facts to be explained,
semantic and syntactic theories are the scientific proposals aimed
at offering explanations of some of these facts.
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Jaime Gomez
Ricardo Sanz
Ramon Galan
Ignacio Lopez |
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Naturalized Epistemology for Autonomous Systems
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This paper explores issues concerning naturalized
epistemology and the use of isomorphism criteria in analysis and construction
of autonomous systems. A system, from an ontological context, is seen
as a set of objects and relations; the demand for explicit definition
is supplied by ontologies, using as is our case, a cognitive inspired
conceptualization.
On the other hand, a naturalized epsistemic account is proposed following
the constructivist paradigm. We begin defining the Basis level, where
irreducible extralogical-phenomenic primitives are set out. Upon the
simple primitives of Basis level, further and more complex levels
are defined, through subsumption process, permitting to correlate
different conceptual levels in terms of their respective primitives.
Following this constructivist praxis, we expect to obtain a shaped
set of isomorphisms between the system form, that is, the epistemic
part of the system, and a range of perceived objects and events of
the environment where the system is placed. |
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| Bartosz Gostkowski |
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Rigid Definite Descriptions in Two Dimensional
Semantics |
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Descriptivism as a view of the nature of
proper name semantics came under crushing and renowned critique administered
by Saul Kripke in "Naming and Necessity". The most notable
of Kripke's criticisms was the so-called modal argument, fortifying
descriptivism against this particular type of philosophical assault
has become essential to its supporters. Efforts have been made to
rigidify the class of definite descriptions that (in descriptivist's
opinion) were to be synonymous with the respective proper names. It
is the first goal of my presentation to demonstrate why these early
attempts must be judged as futile. Much of the appeal of the descriptivist
program comes from the highly intuitive claim, that can be stated
as follows: there is a cognitive component associated with the meaning
of a proper name and it can be expressed by a definite description
synonymous with the proper name. In fact, such is the force of this
claim, that should it turn out to be incompatible with the rest of
the descriptivist's program, there would be very little point in advocating
the position. The introduction of rigidifying modal operators into
the one-dimensional modal semantics of definite descriptions brings
about the awkward consequence that Frege's Puzzle turns out, yet again,
to be unsolvable. Any two actually-rigidified definite descriptions
that are satisfied by the same object in the real or actual world,
are satisfied by the object in any possible world as well. It follows,
that the truth of all the identity statements of the general form
a is b (where a and b are to be filled by different, but coextensive
descriptive-proper names) if actual, is also necessary. Kripke could
accept this result, the descriptivist cannot, for it contradicts the
intuitive claim. There is no difference in the intensional function
corresponding to any two actually-rigidified definite descriptions
synonymous with coextensive proper names to be found which could account
for the apparent intuitive difference in the cognitive value of the
terms. The actually-rigidified definite descriptions are not able
to represent the cognitive function of the proper name. It is a result
that undermines the very point of descriptivism. On the other hand,
I claim that the definite descriptions can be rigidified effectively,
that is, in a way that guarantees the desired outcome both with respect
to Kripke's argument and Frege's Puzzle. It is the second goal of
my presentation to give the definition of an appropriate modal operator
using the apparatus of two-dimensional semantics. I take advantage
of the distinction between the aspects of modal framework typically
referred to as the context versus the circumstances of evaluation
(Kaplan), or the scenario versus the possible world (Chalmers). The
proposal pivots on the definition of the operator capable of fixing
as invariant across all the circumstances of evaluation/possible worlds
the reference that the expression gains in a context/scenario chosen
as the actual one. As a result, when applied to the definite descriptions,
it produces the semantic representation of a corresponding intension
in the form of a function from an ordered pair of arguments (scenario,
possible world) to the object that satisfies the definite description
in that scenario. For any given scenario the function is constant
(invariant with respect to the possible world-argument), which is
a result much desired with respect to the requirements imposed by
the modal argument. On the other hand, for any two definite descriptions
that are satisfied by the same object in the actual world and differ
in a cognitive values, it is possible to find such scenario, that
the two intension functions corresponding to the definite descriptions
diverge. The latter consequence makes the reformed, two dimensional
descriptionism compatible with the Intuitive Claim. There are interesting
results that are to be learned from the advocated solution for the
debate of semantic externalism and internalism. Descriptivism, that
is central to the latter position, appears to be plausible only provided
there is a non-trivial, contextual and external factor to be discerned
in the semantics of the class of expressions. The analysis of the
semantics of the descriptive names sketched here demonstrates that
there is an irreducible external component to the meaning of the proper
names that cannot be accounted for by purely internalist means. Kripke
(among many others) has shown that proper names do not behave in a
way the internalist would want them to, the analysis sketched here
shows, that the internalist intuitions fail even with respect to the
much more restricted scope of the descriptive names. |
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| Stefan Harnad |
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From Knowing How To Knowing That: Acquiring Categories By Word
of Mouth
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Nature is only interested in know-how, not "know-that":
Foraging, feeding, fleeing, fledging, etc. So if know-how were all
we had, then naturalizing epistemology would be easy (but neither
epistemology, nor even language would have fledged). So is it enough
just to add that knowing facts and formulas is part of the cognitive
competence subserving our know-how? The answer may be a bit subtler
than that, because the evolution of sociality and language have
themselves "commodified" knowledge, so that acquiring
a fact can be as much of an adaptive imperative as acquiring a fruit.
But there is a bootstrapping problem, getting here from there: Acquiring
facts cannot become like acquiring fruit until we have language.
So it's down to the origins and adaptive value of language. Here
is a hypothesis: Categorization is, at bottom, know-how: It's knowing
what's the right thing to do with the right kind of thing (what
to feed, flee or fledge, and what not) in order to survive, reproduce,
and beat the competition. But if categories are based on our practical
know-how, then the ones we already have can also be named (another
case of know-how). And if categories can be named, then still other
categories (that you have but I haven't, yet) can be described,
even defined, by stringing those names into propositions with truth
values. This is the capacity that sets our own species apart from
all others: Every species that can learn can acquire categories
by trial and error from direct sensorimotor experience, detecting
the invariant sensorimotor features and rules that reliably distinguish
the category members from the nonmembers. But only our species can
also acquire categories from hearsay. And that not only opens up
a vast wealth of potential categories, all the way from the practical
to the platonic. More important, making all those invariant features
and rules explicit and communicable saves us a lot of time, effort
and risk in acquiring our adaptive know-how -- enough to have radically
altered the brains of our ancestors at least 100,000 years ago,
and turned them into us. It also made possible that form of distributed,
collaborative, collective cognition we call culture.
REFERENCES
Cangelosi, A., Greco, A. & Harnad, S. (2002) Symbol Grounding
and the Symbolic Theft Hypothesis. In: Cangelosi, A. & Parisi,
D. (Eds.) Simulating the Evolution of Language. London, Springer.
http://cogprints.org/2132/
Harnad, S. (2003) Symbol-Grounding Problem. Encylopedia of Cognitive
Science. Nature Publishing Group. Macmillan. http://eprints.ecs.soton.ac.uk/7720/
Harnad, S. (2005) Distributed Processes, Distributed Cognizers and
Collaborative Cognition. Pragmatics and Cognition 13(3): 501-514.
http://eprints.ecs.soton.ac.uk/10997/
Harnad, S. (2005) To Cognize is to Categorize: Cognition is Categorization,
in Lefebvre, C. and Cohen, H., Eds. Handbook of Categorization.
Elsevier. http://eprints.ecs.soton.ac.uk/11725/
Harnad, S. and Dror, I. (2006) Distributed Cognition: Cognizing,
Autonomy and the Turing Test. Pragmatics & Cognition 14. http://eprints.ecs.soton.ac.uk/12368/
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| Christophe Heintz |
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Web search engines and distributed assessment systems
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I analyse the impact of search engines on our cognitive and epistemic
practices. For that purpose, I describe the processes of assessment
of documents on the Web as relying on distributed cognition. Search
engines together with Web users, are distributed assessment systems
whose task is to enable efficient allocation of cognitive resources
of those who use search engines. Specifying the cognitive function
of search engines within these distributed assessment systems allows
interpreting anew the changes that have been caused by search engine
technologies. I describe search engines as implementing reputation
systems and point out the similarities with other reputation systems.
I thus call attention to the continuity in the distributed cognitive
processes that determine the allocation of cognitive resources for
information gathering from others.
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| Paola Hernandez |
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Naturalizing Neuroscience?
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At the end of the previous century a remarkable reformulation of
epistemology emerged, i.e., naturalized epistemology. What is characteristic
of this epistemology is its rejection to infallibilism and apriorism.
It asserts that scientific empirical results are crucial to solve
traditional inquiries about knowledge. Quinean naturalized epistemology
claimed that we should abandon traditional epistemology and replace
it with psychology.
Another branch of naturalized epistemology is evolutionary epistemology,
an approach to knowledge aiming to answer traditional epistemological
questions based on the theory of evolution by natural selection.
It has two different but interrelated programs, the first of them
(EET) accounts for scientific theory change as resembling the mechanisms
of natural selection theory. The second program (EEM) studies the
development of our cognitive capacities and structures as well as
their fixation in our brain along evolution. It is the extension
of biological theory of evolution to cognitive activity and its
apparatus like the brain and sensory and motor systems.
After quinean epistemology and evolutionary epistemology, another
brand of naturalized epistemology arouse, one that is continuing
much of the theoretical work started by the first two, i.e., neuro-epistemology.
This last tries to answer traditional epistemic enquiries analyzing
the place where knowledge is produced: the brain.
A particular representative of this project is P. S. Churchland
'neurophilosophy', a program that looks forward to reduce and eliminate
traditional epistemology. Churchland is convinced that neurology
is all we need to elucidate questions about knowledge. In a way,
neuro-epistemology is the updated version of quinean original proposal.
The three programs have accomplished some kind of reductionism,
mainly an eliminative one. This is what I'm going to analize here.
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| Mikolaj Hernik |
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The philosophical and the folk theories
of intentional action: intentions, actions and deviant causal chains |
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Apparent conformity to naďve intuitions is often used as an argument
in favor of certain a priori analyses of the folk concepts. Philosophical
theories of mind (Fodor) and action (Searle) are sometimes explicitly
claimed to be fully consistent with our commonsense folk understanding
of mental states and actions respectively. Cognitive science seems
surprisingly susceptible to those declarations and it takes the
philosophical a priori interpretations of the folk concepts for
granted too often, despite having its own methods for studying them.
I will discuss some recent empirical results (Knobe, Malle, Nicols),
suggesting huge discrepancies between the folk intuitions about
intentions and intentional actions, and the philosophical models
of those intuitions (Searle). I will also present the results of
my own empirical research suggesting gaps in the Searle's a priori
model of the folk theory of action, and as well as in his notion
of intention-in-action. Broader implications for interdisciplinary
research on folk concepts will be discussed as well.
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Andrzej Kapusta
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Can mental illness be naturalised? |
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My focus will be a debate about mental
illness: whether all psychiatric disorders can be explained in terms
of physical causes, a disease process or lesion of some kind, or a
dysfunction of the brain (psyche). Against Thomas Szasz's argument
that the very concept of "mental illness" is invalid, I
present an improved version of medical model of psychiatry based on
R. E. Kendell's definition of illness as "biological disadvantage".
This approach to psychopathology emphasizes the crucial role of adaptation
and survival and may suggest the existence of mechanisms that we would
not otherwise have expected. The evolutionary approach involves rethinking
all medical models of illness. Thus, Darwin's contribution to psychiatry
underpins two interesting ideas:
- signs of dysfunction (symptoms) may not be open to view; there are
likely to be intentional strategies to deal with failures (restoration,
plasticity, compensation)
- disorders are not "natural kinds" (anti-essentialism)
These ideas are illustrated with contemporary biomedical concepts
of psychopathology (N. Andreasen, P. E. Meehl, T. Crow) and evaluated
from the perspective of engaged epistemology. |
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| Gergely Kertész |
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Farmer Popper's advice, or how to breed better theories
(Popper's evolutionary epistemology and the problems of naturalisation)
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One of the fundamental problems of Popper's evolutionary epistemology
is that since it can be considered as a naturalization attempt,
we have to accept the theory that has served as the analogy with
all it's consequences. It seems though that Popper emphasized only
those consequences that supported his cause.
The first problem here is the naturalization of rationality. From
the evolutionary theory point of view the Popperian objectivity
of the third world does not bear a proper interpretation. In this
perspective we can not distinguish between epistemic and non-epistemic
factors, false decisions or calculations, the sociological and ideological
obstacles of scientific progress and those events that support this
progress, by which we traditionally understand the rational activity
of scientists.
Since Popper used the Darwinian evolutionary theory as a justification
for scientific progress, if we'd like to accept his arguments we
have to investigate what the Darwinian theory can warrant concerning
progress at all. The theories of Darwin and the Neo-Darwinists do
not imply such a warranty. Evolution in their understanding only
means change, the direction of this process can not be determined
on a global scale. This is exactly how Thomas Kuhn relies on the
Darwinian theory. So it's not a mere coincidence that Popper himself
takes efforts to form a theory which he calls the "spearhead
model", which implies the growth of complexity experienced
in the process of evolution. This attempt did not turn out to be
successful.
The analogy to Darwinism is problematic in two ways: (1) it does
not make it possible to separate the epistemic and sociological
factors, (2) it can not warrant the strictly monotone and rational
progress in science.
In my presentation I want to show, that by the further elaboration
of the naturalization program by appealing to more advanced evolutionary
theories, we can bring up arguments for the progress of science
but not for the rationality of this progress. We can assert that
the process leads to a growth of complexity in the long run but
there is no warranty for any actual change that it can be considered
progress.
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| Jonathan Knowles |
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The personal level and empirical psychology
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A central theme in the philosophy of psychology is the relationship
between the so-called personal and sub-personal levels of explanation.
Unfortunately there is a good deal of confusion and unclarity concerning
exactly what these levels are and what they signify. Originally
introduced by Dennett to denote a common sense difference between
what is only properly attributable to an agent or subject and what
is attributable to some part of the subject or her body, such as
her brain, it is sometimes used to denote a wider distinction between
the level of intentional states and their vehicles, whilst in the
hands of thinkers like John McDowell and Jennifer Hornsby it has
come to be connected with a peculiar style of explanation, one that
is intended effectively to rule out any genuine illumination of
our mental life by empirical studies from psychology or cognitive
science. At the same time, workers such as Susan Hurley have sought
to employ the distinction to a more constructive end, aming to show
how empirical work on the sub-personal level can illiminate personal
level phenomena without reducing them, as is arguably the case in
classical computationalist cognitive science.
In this paper I want to do something by way of clarification of
these issues. Firstly I want to discuss exactly what the contrast
between the personal and sub-personal levels really amounts to;
where it is most and least plausible. On the way I shall refer to
work by Jose Luis Bermudez, Georges Rey as well as earlier work
of my own which I think threatens the sharpness of the distinction
and the idea that the twain shall never meet. However, these considerations
do not (nor are in and of themselves intended to) undermine the
distinction entirely; nor, ultimately I think, do they show that
it cannot still be invoked by inveterate opponents of psychological
science if they adopt a certain conception of content. Secondly,
I want to consider the work by Susan Hurley mentioned above, which
seeks to develop a more constructive framework for thinking about
the personal/sub-personal distinction. Hurley stresses a conception
of the personal level as centrally involving the having of a unified
rational perspective on the world, at the same time as insisting
that there is some genuine illumination of this level to be gotten
from science. It turns out, however, on closer inspection that what
she actually offers seems either to be speculations concerning the
non-constitutive sub-personal underpinnings of purely personal level
phenomena, or else (moderately) revisionist accounts of the latter
in which the distinction between sub-personal and personal is signficantly
blurred. The related distinction between vehicle and content will
also be discussed, and also turns out to be less significant once
we see it in the light of the kind of vehicle-externalism Hurley
defends.
In conclusion it seems that the personal/sub-personal distinction
may remain a significant barrier to scientific psychology if wielded
in conjunction with a sufficiently realist and anti-reductive notion
of content. On the other hand, if we can set this notion of content
to one side (as I think in fact we have reason to, though that is
another story), it is far from clear that the distinction is one
that corresponds to any clear fault-line in reality and hence one
that should constrain theory-construction in cognitive science.
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| Hilary Kornblith |
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Disagreement, Naturalism, and the Integrity
of Philosophy |
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We all have beliefs about controversial
matters. In this paper, I focus on the epistemic status of beliefs
held in the face of disagreement with epistemic peers, those who are
comparably well informed, intelligent and so on. We disagree with
our epistemic peers on a wide range of matters, including moral and
political questions, as well as philosophical questions of all sorts.
Should the recognition of such disagreement lead us to moderate our
opinions on these matters, or is it epistemically legitimate to go
on believing as we do in the face of such controversy? I argue that
a proper appreciation of the epistemic significance of disagreement
would force substantial changes in our beliefs on a very wide range
of subjects. More than this, for many philosophical questions, it
would force us to suspend belief.
I do not take this to be a welcome conclusion. In the final section
of the paper, I consider whether a naturalistic approach to philosophical
questions might offer some hope for a less skeptical response to the
problem of disagreement. |
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| Ulrich Krohs |
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Naturalizing functional norms: different
approaches and their limits |
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Functions are ascribed to artifacts and
their components and also to traits, characters and components of
organisms. However, it is a matter of dispute whether functions are
"out there" in the physical world or whether their existence
depends on a mind conceptualizing the function carrier in a particular
way; in other words: whether functions are ontologically objective
or subjective (sensu Searle). At least biological functions are often
regarded as being ontologically objective.
My talk will deal with one of the main problems associated with an
objective view of functions: the problem of how to naturalize the
norms that delineate dysfunction. Why this is a problem becomes clear
from the following example: A function of the kidney is to detoxify
the blood. A kidney that is not capable of properly filtering blood
is dysfunctioning. However, a kidney, functional or not, is also incapable
of performing many other functions, e.g., enabling photosynthesis
or producing light - without being regarded as malfunctioning in these
respects. So we refer to norms of functionality even in cases where
functionality is absent. Consequently, in any naturalist theory of
functions the norm for dysfunctionality needs to be naturalized.
How do different theories of function account for this requirement
of naturalizing norms? I will survey several approaches, in particular
those of Larry Wright, Ruth Millikan, Robert Cummins, Mark Bedau,
and Peter Godfrey Smith, and inquire their success in this respect.
I will also present a new explication of the concept of function,
which links function to the design of a complex entity - but not to
the designing process as, e.g., Millikan's approach does. (A manuscript
will be provided.) My approach is not committed to ontological objectivity
or subjectivity of functions. I want to discuss to which extent the
objective reading may account for functional norms in a naturalist
way.
In the final part of my talk I want to move on from the ontological
to the epistemic sense of objectivity and subjectivity. I shall argue
that, according to some core concept of naturalism, epistemic objectivity
is sufficient for naturalizing functional norms - and discuss whether
or not this finding justifies the conclusion that this core concept
is deficient. |
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| Katerina Pastra |
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"Double-grounding: a missing dimension in the AI quest
for meaning"
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While extracting meaning from and generating meaning with sensorimotor
or symbolic representations (i.e. moving or static images, action,
text/speech) has been the objective in most AI sub-disciplines (e.g.
Natural Language Processing, Image Understanding etc.) the research
focus has mostly been on individual types of representations (e.g.
visual, motoric or linguistic) rather than on their integration.
Even in cases when researchers had to develop prototypes that needed
to integrate sensorimotor and symbolic representations, integration
was never treated systematically, for a number of reasons: difficulties
in measuring sensorimotor human behaviour, and analyzing visual
and motoric representations, the tendency for isolation among researchers
working on e.g. extracting meaning from language or images, lack
of a corresponding theoretical, cognitive or/and neurophysiological
background that would provide a solid basis for computational investigation
of the issue. While the needs for developing integration mechanisms
and resources become more demanding in AI (cf. e.g. conversational
robots, multimedia processing systems etc.), the topic of integration
of sensorimotor and symbolic representations remains in the research
background (Pastra and Wilks 2004, Pastra 2005).
In this paper, we argue that the theory of meaning that comes closest
to providing the necessary framework for integration, is the Symbol
Grounding theory (Harnad 1990). In an attempt to answer criticisms
with regard to the intentionality of artificial agents by Searle
(1980), the association (grounding) of symbols to sensorimotor experiences
has been argued to be necessary for AI agents, for the latter to
grasp the meaning (the intentionality) expressed in symbolic representations
(natural language) and to respond appropriately, i.e. in a meaningful
and coherent way (Harnad 1989, 1990, 2002). The related literature
points to the fact that concepts/symbols come part and parcel with
sensorimotor experiences (cf. Pastra 2005 for an overview). However,
we further argue that the traditional notion/theory of Symbol Grounding
requires considerable extensions in order to stand as a theory of
integration; in this paper we will present the Double-Grounding
theory, a thesis on meaning that goes beyond the traditional grounding
approaches in that (Pastra 2004, Pastra 2005):
1. It considers grounding to be a bi-directional process (double-grounding),
during which symbols are grounded to corresponding sensorimotor
representations for getting tied to the physical entities/events/properties
they refer to, and they also ground -in their turn- the sensorimotor
representations for enriching them with intentionality indicators.
In other words, different aspects of meaning emerge through this
two-way integration of symbolic and sensorimotor representations:
meaning that disambiguates/clarifies linguistic reference (e.g.
word-sense disambiguation), and meaning that disambiguates/clarifies
sensorimotor reference (e.g. focus, salience, type-token distinctions),
i.e. it renders intentionality in human behaviour (sensorimotor
representations) explicit.
2. It does not consider all symbols able or suitable for grounding;
some symbols do not need to be grounded, they are not meant to be
tied to sensorimotor experience, they serve different purposes;
i.e. to abstract away from the sensorimotor nature of human behaviour
and comment on the functional, purposive, intentional nature of
such behaviour .
In this paper, we will elaborate on how Double-Grounding provides
a theoretical background for the development of resources and mechanisms
that allow for meaning to emerge from the automatic integration
of sensorimotor and symbolic representations and in particular,
from:
a) the integration of different types of representations that refer
to the same entity/event/property ;
b) the integration of representations that refer to different entities/events/properties
but collaborate in forming concepts at different levels of abstraction
Last, we will show how this extended grounding theory correlates
with findings in Cognitive Psychology and Neurobiology.
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Manuel de Pinedo
Jason Noble |
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"Deep Blue vs. the Ebola Virus: Complexity, evolution and
agency"
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Are all products of adaptive evolutionary processes agents? Are
such products the only agents?
There is a long philosophical tradition that uses normativity considerations
to argue in favour of the irreductibility and ineliminability of
personal level concepts. Whether limited to linguistic creatures
or extended to social animals, the line adopted by philosophers
such as Wittgenstein, Ryle or Davidson highlights the insufficiency
of nomological descriptions of animals that attribute agency to
each other or that are capable of situating themselves within complex
social networks. If we concentrate exclusively on the internal machinery
of the agent, or on subpersonal descriptions of the relationship
between parts of the agent and microphysical features of the environment,
we may even lose sight of the role they play with regards to the
situatedness of the agent in its physical and social environment.
At its most radical, the refusal to abandon personal level concepts
is grounded, not on ontological considerations, but rather on a
refusal to adopt a perspective towards persons where these are thought
of as subject to prediction and control much as any other portion
of reality (see, for instance, Ramberg 2000).
Some authors have extended the defence of the personal / subpersonal
distinction to animals that clearly don't deserve to be called persons.
For instance, McDowell (1994) has argued that we should avoid the
conflation between the distinction between a person and its part
(the personal / subpersonal distinction) and between persons and
other animals (person / non-person distinction). No animal, inasmuch
as it is capable of competently inhabiting its environment, can
be fully understood without vocabulary that makes essential reference
to the relevance of salient features of its medium to it as a whole.
Here, instead of appealing to normativity, the argument rests on
a deeply non-Cartesian form of externalism. We have argued elsewhere
(Noble & Pinedo 2004, Pinedo & Noble 2007) that such an
agent / subagent distinction is necessary in any explanatory project
aimed at making sense of entities resulting from evolutionary processes,
be they natural or artificial. To do so we focused on the case of
simulated organisms from the field of artificial life, and dwelt
on Tinbergen's plea for explanatory pluralism in biology.
In this paper we would like to consider whether an evolutionary
history is a necessary feature of agency in addition to being a
sufficient one, i.e., whether the role of the agent / subagent distinction
could be extended to designed mechanisms. We compare arguments that
link agency and intentionality to complexity (such as those found
in the work of Dennett) with arguments that favour history (such
as the ones mentioned in the previous paragraph, or those familiar
from the work of Millikan). While we find that the question is admittedly
open, we feel that a proper elucidation of the role of evolution
can take us a long way in our conceptualization of agency.
Ramberg, B. (2000), Post-ontological philosophy of mind: Rorty vs.
Davidson, in R. Brandom (ed.) Rorty and his Critics, Oxford, Blackwell,
pp. 352-69.
McDowell, J. (1994), The content of perceptual experience, in his
Mind, Value, & Reality, Cambridge, MA, Harvard University Press,
1998, pp. 341-358.
Noble, J. & Pinedo, M. de (2004), Mechanistic and ecological
explanations in agent-based models of cognition, in J. Pollack et
al. (eds.), Artificial Life IX, Cambridge, MA, MIT Press, pp. 528-533.
Pinedo, M. de & Noble, J. (2007), Beyond persons: Extending
the personal / subpersonal distinction to non-rational animals and
artificial agents, Biology and Philosophy, in press.
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| Anna Rykowska |
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Externalism And The Knowledge Of The
Past |
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Externalism in theories of mental content
is the doctrine that we cannot interpret all the content of an agent's
mind without recourse to his environment. According to one of the
kind of externalism that is because the identity of a content of majority
of our propositional attitudes is determined by the most frequent
type of cause which is the cause of a type of propositional part of
a thought. And that is so even if an agent which content of thought
we interpret does not know which type of cause it is.
Such an account of content, however, proved to have some consequence
for our deductive reasoning. If an agent in order to have a given
type of content does not need to know the content conditions of identification,
the problem emerges: is such an agent able to evaluate a priori the
validness of his own thinking? It seems that not: if the knowledge
of the conditions of identification of a content type usually requires
empirical knowledge about what happened to be the most frequent cause
of this or that type of propositional content of a thought, so it
seems that such knowledge is also required for evaluation of the lack
of equivocations in reasoning. This is a strange consequence but one
that can be avoided, it seems. Externalists should just require people
to be cautious in thinking: the reasoning should be made in such a
way that in any next premises the same sounding word type explicitly
should have the same type meaning (what can be done e.g. by use of
anaphoric expressions).
Such a requirement seems to solve the problem of strange, externalistic
kind of equivocations in reasoning but has its own bad consequence:
it seems to create a serious problem for those kind of reasoning in
which we want to compare, to storage or just to use knowledge gained
in different periods of our own life or during decades or centuries
of human knowledge development. If in the second and any next premise
of our reasoning we explicitly state that by a given type of word
me mean exactly the same (whatever, in fact, the meaning is) that
in the first premise, and providing that externalism is true (and
that there is a possibility of unknown change in environment), we
never can be sure if our premises about "the other times"
are true or false. That is, if we start speaking about the past and
end intending to speak about the present, we never can be sure our
intention is fulfilled. And in the other direction: if we start thinking
about the present and end intending to think about the past we never
can be sure that the intention is fulfilled, either. In other words,
it may happen that if we change the order of the premises, we may
think about quite different things, and we may have serious difficulties
in discovering if in any given case it is so or not. |
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| Barbara Trybulec |
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The meaning of 'epistemic norm' and 'doxastic justification'
within naturalised epistemology
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The topic of my paper is to be the problem of normativity within
naturalised epistemology. I pose this as the question of whether
naturalism needs to be normative or whether it can be conducted
only as a descriptive enterprise. My claim is that naturalised epistemology
could be seen as normative but in a radically different sense from
traditional, aprioristic epistemology. The reason for this difference
can be identified with a shift in the meaning of the main, evaluative
epistemological terms such as 'epistemic norm' and 'doxastic justification'
that takes place in naturalism. Naturalists use these traditional
terms in a different sense which causes a change of conditions under
which a belief is regarded to be justified. This situation leads
to numerous misunderstandings when the disputants are not aware
of the differences and the reasons for their occurrence. As the
shift in meaning is grounded in the naturalist rejection of the
naturalistic fallacy, the discussion of the normativity of naturalism
can be to a large degree reduced to the debate concerning the naturalistic
fallacy. In my paper, I plan to show - on the basis of Quine's,
Goldman's, Laudan's and Knowles' papers - how the meanings of "epistemic
norm" and "doxastic justification" have changed in
naturalism and why this changes are introduced.
There is also lively discussion concerning norms on the ground of
naturalism itself. What does it mean that norms are derived from
facts? If they are derived form facts they have to be something
different form them. What is the difference? Is the only difference
in a form of a sentence which has normative and not factual structure?
Maybe it does not make sense to say about deriving norms from facts,
because norms are facts so it is enough to refer only to facts as
Knolwes wants. If so, we do not have logical problem with deriving
normative form factual statements, because normative statements
are in fact factual, they have only different practical interpretation,
form of recommendation or advice, which is useful in some practical
situation. Thus, norms in naturalism take nothing but advisable
structure of sentence from their traditional meaning. There would
be many naturalists however who do not agree with such a position.
They are trying to formulate a theory of epistemic norms which are
grounded on facts, but do not reduce to them. To what extend if
at all is it possible on the naturalistic assumptions? In my paper
I will pay attention on these problems.
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