Three examples of theoretical analysis of evolutionary processes are presented. It is shown that the mechanisms involved have little to do with cognitive processes except for superficial and formal analogies. That is the case not only for classical models of adaptive evolution , but also for more recent ones making use of neural network computation and self-organization theories.Recent works on functional self-organization exhibiting some features of intentionality are discussed in this context. It is argued that Dennett's intentional stance cannot be (...) used as a theoretical framework common to human prepositional attitudes, animal behaviour and adaptive evolution. Indeed, a physical theory of intentionality could account, at least in principle, for the production of intentional self-organizing systems. However, except for a renewed theological “argument from design”, there is no justification to attribute intentionality to evolutionary processes and “Mother Nature”, for the reason that they have produced organisms endowed with intentional psycholinguistic capabilities. (shrink)

Cognitive ethology is the comparative study of animal cognition from an evolutionary perspective. As a sub-discipline of biology it shares interest in questions concerning the immediate causes and development of behavior. As a part of ethology it is also concerned with questions about the function and evolution of behavior. I examine some recent work in cognitive ethology, and I argue that the notions of mental content and representation are important to enable researchers to answer questions and state generalizations about the (...) function and volution of behavior. (shrink)

Social play is naturally characterized in intentional terms. An evolutionary account of social play could help scientists to understand the evolution of cognition and intentionality. Alexander Rosenberg (1990) has argued that if play is characterized intentionally or functionally, it is not a behavioral phenotype suitable for evolutionary explanation. If he is right, his arguments would threaten many projects in cognitive ethology. We argue that Rosenberg's arguments are unsound and that intentionally and functionally characterized phenotypes are a proper domain for ethological (...) investigation. (shrink)

Commonsense psychology and cognitive science both regularly assume the existence of representational states. I propose a naturalistic theory of representation sufficient to meet the pretheoretical constraints of a "folk theory of representation", constraints including the capacities for accuracy and inaccuracy, selectivity of proper objects of representation, perspective, articulation, and "efficacy" or content-determined functionality. The proposed model states that a representing device is a device which changes state when information is received over multiple information channels originating at a single source. The (...) changed state of a representing device is a representation. The unitary information source which would give rise to the information impinging on the representing device, and hence, give rise to the representation, is the content of the representation. The model meets the pretheoretic constraints, and also conforms to available neurobiological data for two invertebrate species. (shrink)

In his recent paper "Indeterminacy, empiricism, and the first person" John R. Searle tries to refute Willard V. O. Quine's famous "indeterminacy of translation thesis" by arguing that this thesis is in fact a reductio ad absurdum of Quine's own "linguistic behaviorism". Searle accuses Quine of being "antimentalistic" and suggests that the "absurdity" of Quine's thesis might be avoided if a full-fledged "intentionality" were tolerated in the debate on meaning. - This anti-Quinean approach in some respects reminds of the "improbable (...) debate" between Searle and Jacques Derrida ten years ago, when Derrida had split and "deferred" intentionality by showing that the essential "iterability" of signs inevitably infects every intentional act with an unremovable "non-presence". In this paper it is argued that Searle's attacks on Quine and Derrida have both failed - and that there are structural similarities between these two failures which reveal some interesting parallels between Quine's and Derrida's philosophy. (shrink)

The encounter between the Darwinian theory of evolution and Mendelism could be resolved only when reductionist tools could be applied to the analysis of complex systems. The instrumental reductionist interpretation of the hereditary basis of continuously varying traits provided mathematical tools which eventually allowed the construction of the Modern Synthesis of the theory of evolution.When genotypic as well as environmental variance allow the isolation of parts of the system, it is possible to apply Mendelian reductionism, that is , to treat (...) the phenotypic trait as if ti causally determined by discrete genes for the trait. howeverm such a beanbag genetics approach obscures the system's eye-view. The concept of heritability, defined as the proportion of the total phenotypic variance due to (additive) hereditary variation, asserts that genetic elements have discrete effects; but by relating to the genotypic variance, it avoids the trap of reffering to genes for characters. (shrink)