Brain and mind

We are beginning to understand how the brain is organized and works, how it evolved in the remote past and how it continually forms during the embryonic development of individual organisms. The study of the brain and its activity has recently advanced at an accelerating pace thanks to the convergence of a number of research strategies. At least three research lines occupy a particular position among these strategies: genetics and the molecular biology of neural cells and the central nervous system; cognitive science; and brain imaging. If the brain is the subject of biological studies at the cellular, intercellular and circuitry levels, the approach to the study of mind should be more subtle. Nonetheless, science has progressed a long way in this direction. Some recent advances in this field are briefly reviewed here, with particular emphasis on brain evolution and development, the role of sensory organs, coding and the processing of sensorial information, memory, rationality, meaning and consciousness.