The brain adapts to changes that take place in the body. Deprivation of input results in size reduction of cortical representations, whereas an increase in input results in an increase of representational space. Amputation forms one of the most dramatic disturbances of the integrity of the body. The brain adapts in many ways to this breakdown of the afferent–efferent equilibrium. However, almost all studies focus on the sensorimotor consequences. It is not known whether adaptation takes place also at other “levels” (...) in the system. The present study addresses the question whether amputees dream about their intact body, as before the amputation, or about the body after the amputation and whether the dream content was a function of time since the amputation and type of amputation. The results show that the majority of the dreamers reported dreams about their intact body although the mean time that elapsed since the amputation was twelve years. There is no clear relation with the type of amputation. The results give modest evidence for the existence of a basic neural representation of the body that is, at least, partly genetically determined and by this relatively insensitive for changes in the sensory input. (shrink)

The Theory of Knowledge: A Thematic Introduction explains the main ideas and problems of contemporary epistemology while avoiding technical detail. Comprehensive and rich in illustrations and examples, it highlights contemporary debates over the definition, sources, and limits of human knowledge, and covers major topics including the nature of belief, theories of truth, epistemic justification, the Gettier problem, skepticism, and epistemic rationality. Its discussions identify important connections between traditional epistemological questions and cognitive science, the history of science, the sociology of knowledge, (...) and cross-cultural studies. The book culminates with a focus on questions regarding epistemological method and an examination of the roots of contemporary analytic approaches to epistemology. The authors defend a distinctive position regarding epistemological method, called broad explanationism, that incorporates some insights from naturalism in epistemology. The volume is enhanced by a glossary of important epistemological terms and suggestions for further reading. Easily accessible to beginning students in philosophy, The Theory of Knowledge serves as an ideal text for courses in the theory of knowledge and will also appeal to general readers interested in philosophy. (shrink)