Feldman and Levin present a model for movement control in which the system is said to seek equilibrium points, active movement being produced by shifting frames of reference in space. It is argued that whatever merit this model might have is limited to an understanding of “the how” and not “the why” we move. In this way the authors seem to be forced into a dualistic position leaving the upper level of the proposed control hierarchy “floating.”.

Adaptation by means of natural selection depends on the ability of populations to maintain variation in heritable traits. According to the Modern Synthesis this variation is sustained by mutations and genetic drift. Epigenetics, evodevo, niche construction and cultural factors have more recently been shown to contribute to heritable variation, however, leading an increasing number of biologists to call for an extended view of speciation and evolution. An additional common feature across the animal kingdom is learning, defined as the ability to (...) change behavior according to novel experiences or skills. Learning constitutes an additional source for phenotypic variation, and change in behavior may induce long lasting shifts in fitness, and hence favor evolutionary novelties. Based on published studies, I demonstrate how learning about food, mate choice and habitats has contributed substantially to speciation in the canonical story of Darwin’s finches on the Galapagos Islands. Learning cannot be reduced to genetics, because it demands decisions, which requires a subject. Evolutionary novelties may hence emerge both from shifts in allelic frequencies and from shifts in learned, subject driven behavior. The existence of two principally different sources of variation also prevents the Modern Synthesis from self-referring explanations. (shrink)

The problem of artificial intelligence and human being has always raised questions about possible interactions among them and possible effects yielded by the introduction of such un-human subject. Dreyfus deeply connects intelligence and body based on a phenomenological viewpoint. Thanks to his reading of Merleau-Ponty, he clearly stated that an intelligence must be embodied into a body to function. According to his suggestion, any AI designed to be human-like is doom to failure if there is no tight bound with a (...) human-like body. Today, we are facing the pervasive introduction of robots into our everyday life, and the problem of this co-existence raises again with new vigor since they are not mere speculations, but there are already products sold to the public. We will highlight how vulnerability has to be taken into consideration in the design of robots to create entities which are able to relate to human beings taking into consideration mainly the positions of Sartre, Habermas, Levinas, and Marleau-Ponty. A first part will focus on the vulnerability of the robots. Robots are going to be among us, but a real interaction is possible only the moment they have a “same” body of ours. Therefore, only through the realization of a “fragile” body we can achieve a cohabitation between equals. Thanks to Merleau-Ponty we will show how the vulnerability of a body is one of the most important element to found any social interaction. The second part will focus on how the robots will affect the vulnerability of the human subjects. To produce vulnerable robots is not a mere neutral introduction, but it shapes how the subjects are constituted. Thanks to Levinas, we will study how the vulnerable robots will shape the subjects. Thanks to Sartre, we will show how the creation of a different gaze in the robot changes the vulnerabilities of the human subjects. Introducing vulnerable robots is a way to shape ourselves. (shrink)

Understanding of the λ model has greatly increased in recent years as evidenced by most of the commentaries. Some commentators underscored the potential of the model to integrate aspects of different sensorimotor systems in the production of movement. Other commentators focused on not-yet-fully-developed parts of the model. A few persisted in misunderstanding some of its basic concepts, and on these grounds they reject it. In responding to commentaries we continue to elaborate on some fundamental points of the model, especially control (...) variables, the idea of movement production by shifting the positional frame of reference and the hypothesis of biomechanical correspondence in motor control. We also continue to develop our ideas on the intrinsic generation of the frame of reference associated with external space and utilized for the control of arm movement and locomotion. The dynamic principles underlying the model are discussed in light of the dynamical systems approach. (shrink)

A recent study published in Nature Neuroscience purports to have answered a question posed to Locke in 1688 by his friend William Molyneux, namely, whether ‘a man born blind and made to see’ would be able to identify, immediately and by vision alone, objects previously known only by touch. The answer, according to the researchers – and as predicted by Molyneux, as well as Locke, Berkeley, and others – is ‘likely negative. The newly sighted subjects did not exhibit an immediate (...) transfer of their tactile shape knowledge to the visual domain’. Since then, however, many commentators have argued that the answer is still not clear. Moreover, in the contemporary literature on Molyneux’s Question, and more generally on cross-modal perception and the individuation of the senses, it is sometimes hard to determine what question is being investigated. In this paper, I distinguish a number of different questions about the relation between visual and tactual perception that can arise when considering Molyneux’s... (shrink)

The authors report that the reorganization of body configuration during weightlessness is based on an intrapersonal frame of reference such as the configuration of the support surface and the position of the body's center of gravity. These results stress the importance of “knowledge” of the state of internal geometric structures, which cannot be directly signalled by specific receptors responsible for direct dialogue with the physical external world.

The phenomenal body is an intriguing concept, and Merleau-Ponty’s notion of habit, coupled with motor intentionality, provides a novel perspective on its inner workings. I contend that his portrayal of habit tacitly bears two faces – motoric habit and instrumental habit respectively. The former is an attunement to some bodily possibilities that are already at our disposal while the latter is an explicit relation to external objects and a process of incorporating those objects into our own bodies. These two notions (...) play into each other, creating a mechanism that offers an intuitive illustration and simple productive definition for a dynamic picture of bodyhood. Furthermore, it carries an internal delimitation that marks the boundaries of its application. The result is a view that provides something new to current interpretations of Merleau-Ponty, as well as potential applications in areas that derived from his appeals to motor intentionality. (shrink)

A serious crisis is identified in theories of neurocomputation, marked by a persistent disparity between the phenomenological or experiential account of visual perception and the neurophysiological level of description of the visual system. In particular, conventional concepts of neural processing offer no explanation for the holistic global aspects of perception identified by Gestalt theory. The problem is paradigmatic and can be traced to contemporary concepts of the functional role of the neural cell, known as the Neuron Doctrine. In the absence (...) of an alternative neurophysiologically plausible model, I propose a perceptual modeling approach, to model the percept as experienced subjectively, rather than modeling the objective neurophysiological state of the visual system that supposedly subserves that experience. A Gestalt Bubble model is presented to demonstrate how the elusive Gestalt principles of emergence, reification, and invariance can be expressed in a quantitative model of the subjective experience of visual consciousness. That model in turn reveals a unique computational strategy underlying visual processing, which is unlike any algorithm devised by man, and certainly unlike the atomistic feed-forward model of neurocomputation offered by the Neuron Doctrine paradigm. The perceptual modeling approach reveals the primary function of perception as that of generating a fully spatial virtual-reality replica of the external world in an internal representation. The common objections to this picture-in-the-head concept of perceptual representation are shown to be ill founded. Key Words: brain-anchored; Cartesian theatre; consciousness; emergence; extrinsic constraints; filling-in; Gestalt; homunculus; indirect realism; intrinsic constraints; invariance; isomorphism; multistability; objective phenomenology; perceptual modeling; perspective; phenomenology; psychophysical parallelism; psychophysical postulate; qualia; reification; representationalism; structural coherence. (shrink)

Empirical and experiential investigations allow the distinction between observational and non-observational forms of subjective bodily experiences. From a first-person perspective, the biological body can be (1) an "opaque body" taken as an intentional object of observational consciousness, (2) a "performative body" pre-reflectively experienced as a subject/agent, (3) a "transparent body" pre-reflectively experienced as the bodily mode of givenness of objects in the external world, or (4) an "invisible body" absent from experience. It is proposed that pre-reflective bodily experiences rely on (...) sensori-motor integrative mechanisms that process information on the external world in a self relative way. These processes are identification-free in that the self is not identified as an object of observation. Moreover, it is defended that observational self-consciousness must be grounded on such identification-free processes and pre-reflective forms of bodily experience. (shrink)

The concepts and powerful mathematical tools of Dynamical Systems Theory (DST) yield illuminating methods of studying cognitive processes, and are even claimed by some to enable us to bridge the notorious explanatory gap separating mind and matter. This article includes an analysis of some of the conceptual and empirical progress Dynamical Systems Theory is claimed to accomodate. While sympathetic to the dynamicist program in principle, this article will attempt to formulate a series of problems the proponents of the approach in (...) question will need to face if they wish to prolong their optimism. The main points to be addressed involve the reductive tendencies inherent in Dynamical Systems Theory, its somewhat muddled position relative to connectionism, the metaphorical nature DST-C exhibits which hinders its explanatory potential, and DST-C's problematic account of causality. Brief discussions of the mathematical and philosophical backgrounds of DST, seminal experimental work and possible adaptations of the theory or alternative suggestions (dynamicist connectionism, neurophenomenology, R&D theory) are included. (shrink)

It is common to find depictions of behaviorist approaches to the mind as approaches according to which mental events are “dispositions for behavior.” Moreover, it is sometimes said that for these approaches the dispositions are for publicly observable behaviors, or even “purely physical movements,” thereby excluding from being constitutive of mental events any internal bodily happening, besides any movement not taken as “purely physical.” In this paper I aim to pinpoint problems in such widespread depictions of behaviorism about the mind, (...) by arguing that they turn out to be too restrictive or too broad, as the case may be. In addition, I put forward an alternative, more balanced characterization, which wards off such problems. Based upon this alternative characterization, I attempt to classify some of the embodied mind theories as behavioral, non-behavioral, or borderline cases between behavioral and non-behavioral perspectives. (shrink)

Philosophers and psychologists have often maintained that in order to attribute mental states to other people one must have a ‘theory of mind’. This theory facilitates our grasp of other people’s mental states. Debate has then focussed on the form this theory should take. Recently a new approach has been suggested, which I call the ‘Direct Perception approach to social cognition’. This approach maintains that we can directly perceive other people’s mental states. It opposes traditional views on two counts: by (...) claiming that mental states are observable and by claiming that we can attribute them to others without the need for a theory of mind. This paper argues that there are two readings of the direct perception claims: a strong and a weak one. The Theory-theory is compatible with the weak version but not the strong one. The paper argues that the strong version of direct perception is untenable, drawing on evidence from the mirror neuron literature and arguments from the philosophy of science and perception to support this claim. It suggests that one traditional ‘theory of mind’ view, the ‘Theory-theory’ view, is compatible with the claim that mental states are observable, and concludes that direct perception views do not offer a viable alternative to theory of mind approaches to social cognition. (shrink)

Most of us would agree that the world of our experience is different than the extramental reality of which we are a part. Indeed, the evidence pertaining to cultural cosmologies around the globe suggests that virtually all peoples recognize this distinction—hence the focus upon the "hidden" forces behind everyday events. That said, the struggle to comprehend the relationship between our consciousness and reality, even the reality of ourselves, has led to controversy and debate for centuries in Western philosophy. In this (...) article, we address this problem from an anthropological perspective and argue that the generative route to a solution of the experience–reality "gap" is by way of an anthropologically informed cultural neurophenomenology . By this we mean a perspective and methodology that applies a phenomenology that controls for cultural variation in perception and interpretation, coupled with the latest information from the neurosciences about how the organ of experience—the brain—is structured. (shrink)

As anthropology becomes more interested in consciousness and its numerous states, and with a slowly increasing appeal to neuroscience for insights and explanations of consciousness, there is an understandable interest in the components of consciousness and how they combine into alternative states in different sociocultural settings. One of those components should be the complexity of information processing producing the knowing aspect of consciousness. The author introduces an approach to this aspect in the form of conceptual systems theory, a neo-Piagetian model (...) of cognitive development, which has been used to good effect to explain information processing in social situations but heretofore neglected by anthropologists. The neuroanthropological underpinnings of CST are discussed, as is the range of potential applications to ethnological and ethnographic problems. (shrink)

The equilibrium-point hypothesis (the λ-model) is superior to all other models of single-joint control and provides deep insights into the mechanisms of control of multi-joint movements. Attempts at associating control variables with neurophysiological variables look confusing rather than promising. Probabilistic mechanisms may play an important role in movement generation in redundant systems.

There seem to be good reasons to think that there must be body representations or some kind of body content required for riding a bike or grabbing a cup of coffee. However, when I ride a bike or grab a cup of coffee, am I just representing the bike and the cup? Or am I actually also representing my body and bodily movements? The thesis of this paper is that the body not only figures in the content that guides everyday (...) activities but that it must. How is this possible? Exactly what elements of the subject’s body can be said to figure in this content? I will proceed in three steps: in the first, I bring together the conceptual resources that seem to be required; in the second, I discuss a couple of proposals about how to link the notion of affordance and the topic of bodily representations, arguing that they are misguided; finally, I propose a view according to which the body’s physical and spatial properties are an unavoidable part of the content that guides everyday activities. (shrink)

The correspondence view of memory is not a metaphor. However, correspondence is the essential feature of the archaeology metaphor, which harks back to Freud and Neisser. A modern version of this metaphor and some of its implications are briefly described. The archaeology metaphor integrates the idea of stored traces in a nonmechanistic framework.

When I see a mountain to be far away, there is non-reflective awareness of myself as that from which distance is measured. Likewise, there is self-awareness when I see a tree as offering shade or a hiding place. In such cases, how can the self I am aware of be the same as I who am aware of it? Can the perceived be its perceiver? Mobilizing infancy research, I offer the following thesis as to how one can be aware of (...) oneself, at a single stroke, as perceiver and as embodied entity. During face-to-face interaction at 2 or 3 months, the infant has a sensuous perception of the caregiver as well as a non-sensuous impression of something she is eyeing and vocalizing toward. This implicit target is the self as it first becomes present to the child. It is shown how the target of her attending is experienced by him as embodied, active, affective, and continuous. After acquiring language, however, the child becomes capable of playing the caregiver toward himself: He can speak in her manner while listening as the one addressed. Thus the relation is internalized. The outcome is the independent and secure self-awareness that typifies post-infancy life. Independence bears a price, which is assessed. (shrink)