Varela and Embodiment

Abstract

Varela and Embodiment Elena Pasquinelli Francisco Varela (1946-2001) studied biology in Chile and in the United States with neurobiologist Humberto Maturana, with whom he developed the theory of autopoiesis. According to this theory, the minimal form of autonomy that defines biological life is autopoiesis or self-production, which has the aspect of a reaction network, operationally closed and membrane bound. The theory of autopoiesis suggests that the nervous system cannot be considered as an input-output information processing system. After some years spent in the United States, Varela moved to Paris, France, where he addressed two main directions of research: the experimental study of brain activity—in particular as regards the neuronal integration during the performance of cognitive tasks—and the phenomenological investigation of human consciousness. Within this second direction of philosophical studies, Varela developed an original and controversial approach to cognition.1 This approach, which has came to be called the enactive view, is aimed at overcoming the mind/world dichotomy felt by many to be a hindrance to the development of a mature psychology. In Varela's enactive view, the world and the cognitive organism determine each other: the organism selects relevant properties of the physical world, and the world selects the structure of the organism, during their respective co-evolutionary history. An important tenet of the enactive approach is in fact that cognition is embodied. This claim represents a crucial step toward the development of a new trend of research in cognitive sciences, where the cognitive process is investigated without abstracting from the conditions in which it takes place. In fact, the statement that "the body matters" for cognition brings forth relevant consequences for the conception of the body and the mind and contains indications for research on the loop between perception, cognition, and action. The statement that "the body matters" for cognition is indeed quite widespread in circles that oppose the classical computationalist-representationalist approach to cognition. But in what way does the body play a constitutive role in cognition? And what should we mean by the term "body"? The claim about embodiment in cognition can be understood as a statement relative to the role played by the physical structure of the body in cognitive, perceptual, and motor performances and acquisitions. However, the conception of the body as simply a physical entity is only one step toward a [End Page 33] theory of the co-determination of the organism and the world that is proposed by Varela. As a medium of the interaction with the world, Varela conceives the body as a structured set of behavioral repertories, of motor and perceptual capabilities and activities. Embodiment goes beyond the physical structure of the organism since it is principally characterized by the sensorimotor structure of the animal: body-scaling, sensory-motor capacities. "The actions of an animal and the world in which it performs these actions are inseparably connected. Going through life as a small fly makes a cup of tea appear like an ocean of liquid; an elephant, however, will see the same amount of tea as an insignificant drop, tiny and barely noticeable. What is perceived appears inseparably connected with the actions and the way of life of an organism."2 Sensorimotor capacities, or the activity of the animal, are then crucial in the mutual enactment of the world and mind. As the world selects the sensorimotor capacities of the animals that are valid for life and adaptation, animals select the properties of the world that are relevant for their structure: "the structure of the perceiving animal, understood as the kinds of self-organizing neuronal networks that couple sensory and motor surfaces, which determine both how the animal can be modulated by the environmental events and how sensory-motor activity participates in animal-environment codetermination." 3 As a consequence, "animals with different sensory-motor capacity would segment the world in different ways. As a corollary, we claim that the prespecified world we find . . . is actually the world as described in relation to the sensory-motor capacities of the higher primates."4 The assertion of embodiment as relevant for the proper motor-perceptual activities of the organism is strictly connected to the idea that action and...