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Abstract: There once was an ugly duckling. Except he wasn’t a duckling at all, and once he realized his error he lived happily ever after. And there you have an early primer from the animal literature on the issue of misrepresentation -- perhaps one of the few on this topic to have a happy ending. Philosophers interested in misrepresentation have turned their attention to a different fairy tale animal: the frog. No one gets kissed in this story and the controversial issue of self-recognition is avoided. There are simply some scientifically established facts about ways to get a frog to stick out its tongue. (Who would want to kiss a frog under those conditions, anyway?) Some frogs, it seems, are fairly indiscriminate about sticking out their tongues. Not just flies, but a whole slew of other things will go down the hatch if propelled at just the right velocity and range through a frog’s visual field, provoking a tongue-flicking response. Fortunately for us all, frogs seem to be a bit more discriminating about whom they will kiss. At first sight, the frog’s tongue-flicking response seems like an ideal starting point for those who wish to promote evolutionary or "teleological" theories of intentional content. The signals passed from the frog’s retina to the frog’s brain were undoubtedly honed by the deaths of untold millions of insects snagged by countless generations of amphibians. Those amphibian ancestors whose eyes generated signals that were more 1 reliable guides to the location of food in the environment did better at propagating their genes, all other things being equal, than their cohorts whose eye to brain signals were less reliable. The teleosemanticist identifies the content of frogs’ intracranial signals in terms of the environmental conditions that historically corresponded to successful tongue-flicking, namely the presence of frog food -- typically flies -- in tongue-flicking range. And their descendants live happily ever after. But this would not be a fairy tale unless there were something to pose a credible threat to this happy ending..
Abstract: As part of the ongoing attempt to fully naturalize the concept of human being--and, more specifically, to re-center it around the notion of agency--this essay discusses an approach to defining the content of representations in terms ultimately derived from their central, evolved function of providing guidance for action. This 'guidance theory' of representation is discussed in the context of, and evaluated with respect to, two other biologically inspired theories of representation: Dan Lloyd's dialectical theory of representation and Ruth Millikan's biosemantics
Abstract: Let me begin by signaling my enthusiasm both for the specific case offered by Cummins et al. against teleosemantics and for the overall framework from which this work derives. If the first approximation of the idea is that there will be material implicit in a representation that can be exploited by a cognitive agent that later acquires the right abilities to extract this material, and if this material looks a great deal like content, then the teleosemanticist will find accommodating it challenging. Moreover, the distinction between representation and indication is intriguing and important, and the discussion of structural transformation and isomorphism is illuminating. While Cummins has been urging these themes for some time now, it seems to me that they have not been sufficiently appreciated in the literature
Abstract: In this paper, we introduce a novel difficulty for teleosemantics, viz., its inability to account for what we call unexploited content—content a representation has, but which the system that harbors it is currently unable to exploit. In section two, we give a characterization of teleosemantics. Since our critique does not depend on any special details that distinguish the variations in the literature, the characterization is broad, brief and abstract. In section three, we explain what we mean by unexploited content, and argue that any theory of content adequate to ground representationalist theories in cognitive science must allow for it.1 In section four, we show that teleosemantic theories of the sort we identify in section two cannot accommodate unexploited content, and are therefore unacceptable if intended as attempts to ground representationalist cognitive science. Finally, in section five, we speculate that the existence and importance of unexploited content has likely been obscured by a failure to distinguish representation from indication, and by a tendency to think of representation as reference
Abstract: Sometimes it takes years of debate for philosophers to discover what it is they really disagree about. Sometimes they talk past each other in long series of books and articles, never guessing at the root disagreement that divides them. But occasionally a day comes when something happens to coax the cat out of the bag. "Aha!" one philosopher exclaims to another, "so that's why you've been disagreeing with me, misunderstanding me, resisting my conclusions, puzzling me all these years!"
Abstract: No response that was not as long and intricate as the two commentaries combined could do justice to their details, so what follows will satisfy nobody, myself included. I will concentrate on one issue discussed by both commentators: the relationship between evolution and teleological (or intentional) explanation. My response, in its brevity, may have just one virtue: it will confirm some of the hunches (or should I say suspicions) that these and other writers have entertained about my views. For more closely argued defenses of my points, see Dennett 1990a,b,c; 1991a,b
Abstract: In ‘Of Sensory Systems and the “Aboutness” of Mental States’, Kathleen Akins (1996) argues against what she calls ‘the traditional view’ about sensory systems, according to which they are detectors of features in the environment outside the organism. As an antidote, she considers the case of thermoreception, a system whose sensors send signals about how things stand with themselves and their immediate dermal surround (a ‘narcissistic’ sensory system); and she closes by suggesting that the signals from many sensory systems may not in any familiar sense be about anything at all. Her presentation of the issues, however, overlooks resources available to ‘the traditional view’—or so I shall argue. Akins’s own thumbnail sketch of what is wrong with the traditional view is that it asks, concerning a given sensory system, ‘what is it detecting?’, when we should instead be asking ‘what is it doing?’ (352). Her point is that on the traditional view the function of a sensory system—what it's ‘for’—is to detect or indicate (values of) features of the outside environment. But at least on one version of the traditional view—namely Ruth Millikan’s—this would never be the sole or main proper function of a sensory system. (Akins does not list Millikan as a traditionalist, but Millikan fits squarely Akins’s description of them, since she believes in a naturalistic theory of aboutness and thinks it should begin with the senses.) For Millikan (1989, 1993), the proper function of a sensory system is in the first instance enabling behavioural systems—in the simplest case, motor routines—to perform their proper function. This they do, roughly, by switching on and steering the behavioural routines. Where features of the outside environment come in is as Normal (= assumed-by-the-design) conditions for the successful performance of the sensory system's proper function. That is, the only strategy for switching on and steering that is simple enough for evolution to have hit upon it, and reliable enough for evolution to have liked it, is a strategy which gears the steering to (values of) features of the outside environment. But as soon as one starts fleshing out the details of this story, one notices that they are probably quite different in the case of thermoreception from how they are with ‘distance’ senses such as vision and olfaction--a point which Akins overlooks..
Abstract: Empty judgements appear to be about something, and inaccurate judgements to report something. Naturalism tries to explain these appearances without positing non-real objects or states of affairs. Biological naturalism explains that the false and the empty are tokens which fail to perform the function proper to their biological type. But if truth is a biological 'supposed to', we should expect designs that achieve it only often enough. The sensory stimuli which trigger the frog's gulp-launching signal may be a poor guide to the signal's content. Teleosemantics should be anti-verificationist
Abstract: The "teleosemantic" program is part of the attempt to give a naturalistic explanation of the semantic properties of mental representations. The aim is to show how the internal states of a wholly physical agent could, as a matter of objective fact, represent the world beyond them. The most popular approach to solving this problem has been to use concepts of physical correlation with some kinship to those employed in information theory (Dretske 1981, 1988; Fodor 1987, 1990). Teleosemantics, which tries to solve the problem using a concept of biological function, arrived in the mid 1980s with ground-breaking works by Millikan (1984) and Papineau (1984, 1987).<sup>1</sup>
Abstract: In a recent article, William F. Harms (2000) argues in a novel way for a form of moral realism. He does not actually argue that moral realism is true, but rather that if morality is the product of natural selection
Abstract: "According to informational semantics, if it's necessary that a creature can't distinguish Xs from Ys, it follows that the creature can't have a concept that applies to Xs but not Ys." (Jerry Fodor, The Elm and the Expert, p.32)
Abstract: Theories of content purport to explain, among other things, in virtue of what beliefs have the truth conditions they do have. The desire for such a theory has many sources, but prominent among them are two puzzling (and related) facts that are notoriously difficult to explain: beliefs can be false, and there are normative constraints on the formation of beliefs.2 If we knew in virtue of what beliefs had truth conditions, we would be better positioned to explain how it is possible for an agent to believe that which is not the case. Moreover, we do not say merely of such an agent that he believes that p when p is not the case. We say the agent made a mistake, and often criticize him accordingly; we think agents ought not have false beliefs, and that such beliefs should be changed; etc. An adequate theory of content would, presumably, reveal the source of these normative facts about the mental lives of agents. Indeed, it is typically taken to be an adequacy constraint on a theory of content that it help explain the possibility of error and the "normativity" of content. Teleological theories of content promise to do just this
Abstract: The success of a piece of behaviour is often explained by its being caused by a true representation (similarly, failure falsity). In some simple organisms, success is just survival and reproduction. Scientists explain why a piece of behaviour helped the organism to survive and reproduce by adverting to the behaviour
Abstract: One of the great outstanding problems in materialist philosophy of mind is the problem of how there can be space in the material world for intentionality. In the 1980s Ruth Millikan formulated a detailed theory according to which representations are physical particulars and their contents are complex relational properties of those particulars which can be specified in terms of respectable properties drawn from the natural sciences. In particular, she relied on the biological concept of the function of a trait, and the existence of historical conditions which enter into an evolutionary explanation of the operation of that trait. The present article is an introduction to this influential theory of intentionality
