The evolutionary emergence of biological processes in organisms with inner, qualitative aspects has not been explained in any sufficient way by neurobiology, nor by the traditional neo-Darwinian paradigm -natural selection would appear to work just as well on insentient zombies (with the right behavioral input-output relations) as on real sentient animals. In consciousness studies one talks about the 'hard problem' of qualia. In this paper I sketch a set of principles about sign action, causality and emergent evolution. On the basis of these principles, I characterize a concept of cause that would allow for a naturalistic explanation of the origin of consciousness. The suggested account of causation also turns the 'hard problem' of qualia into the easier problem of relating experimental biology to experiential biology.
New approaches to life and consciousnessThe past 15 years have witnessed a considerable increase in scientific and philosophical consciousness studies, including research into the material processes related to phenomena of consciousness. This is well reflected in the recent development of cognitive science. Cognitive science studies information processing in the mind in a crossdisciplinary fashion, drawing on research in neuroscience, psychology, logic, and artificial intelligence (especially conceptual modelling based on neural networks). Even though researchers in cognitive science originally did not focus on the study of consciousness, they found they were unable to escape philosophical questions concerning conceptualization, the functioning of symbols, intentionality, reference, and knowledge. In brief, cognitive science found itself saddled with the problem of how to account for the aboutness aspect of consciousness-conscious processes (like the processing of symbols and similar intrinsically intentional phenomena) are about something, and usually refer to something other than itself. Semioticians have not hesitated to point out that these concepts pertain to significance, and thus are located within the sphere of interest of any theory of sign processes.Later on in the 1990s, 'consciousness studies' established itself as a field of research with separate journals and large conferences. Consciousness studies tries to 2 overcome the traditional sceptical position of the 'hard' // p. 314 / sciences that one could not deal in any serious theoretical fashion with subjective phenomena-i.e. with phenomena which hitherto were studied only phenomenologically 'from within' (or even by very naive forms of 'introspection'), or by relating data 'from without' of human brain activity (gained by various scanning methods) with the verbal reports of experimental subjects communicating their simultaneous experiences 'from within' of doing different tasks. In the same period, traditional philosophy of mind seemed to 'rediscover' its proper object (Searle 1992) and again became a flourishing area of research. Indeed, philosophy of mind was inspired by cognitive science to state (or reformulate) the so-c...