Computational Theories and their Implementation in the Brain

In the late 1960s and early 1970s David Marr produced three astonishing papers in which he gave a detailed account of how the fine structure and known cell types of the cerebellum, hippocampus and neocortex perform the functions that they do. Marr went on to become one of the main founders of Computational Neuroscience. In his classic work 'Vision' he distinguished between the computational, algorithmic, and implementational levels, and the three early theoriesconcerned implementation. However, they were produced when Neuroscience was in its infancy.Now that so much more is known, it is timely to revisit these early theories to see to whatextent they are still valid and what needs to be altered to produce viable theories that stand up to current evidence. This book brings together some of the most distinguished scientists in their fields to evaluate Marr's legacy. After a general introduction there are three chapters on the cerebellum, three on the hippocampus and two on the neocortex. The book ends with an appreciation of the life of David Marr by Lucia Vaina.

Professor Lucia M. Vaina received an MS in mathematics from University of Timisoara and Pavia, PhD in mathematical logic from the Sorbonne and MD PhD (neuroscience) from the University of Toulouse. Her postdoctoral training was at UC Berkeley, Stanford and MIT. She joined the faculty of Boston University and Harvard Medical School in 1986 and in 1995 she was promoted to tenured Professor of Biomedical Engineering at Boston University. She is among the firstvisual neuroscientists that studied the effects of lesions on visual motion perception in humans, by using psychophysics, biologically constrained computational modeling, and MRI, fMRI and MEG. Shecharacterized the cortical mechanisms underlying visual motion tasks, and alternate mechanisms used by motion impaired patients. She studied psychophysically&computationally aspects of perceptual learning of motion discrimination and used fMRI to elucidate their neural substrateProfessor Richard E. Passingham received his BA from the University of Oxford and his Ph.D in Psychology from the University of London. He returned to Oxford in 1970 and was made a University Lecturer and Fellow of Wadham College in 1976. He was amongst the first to use brain imaging to study human cognition, starting in 1988 at the MRC Cyclotron Unit at the Hammersmith Hospital where he was an Honorary Senior Lecturer. In 1996 he moved to the newly founded Wellcome Centre for NeuroImaging atthe University of London where he was an Honorary Principal. He was made Professor of Cognitive Neuroscience at Oxford in 1997.

In the late 1960s and early 1970s David Marr produced three astonishing papers in which he gave a detailed account of how the fine structure and known cell types of the cerebellum, hippocampus and neocortex perform the functions that they do. Marr went on to become one of the main founders of Computational Neuroscience. In his classic work 'Vision' he distinguished between the computational, algorithmic, and implementational levels, and the three early theories concerned implementation. However, they were produced when Neuroscience was in its infancy.Now that so much more is known, it is timely to revisit these early theories to see to what extent they are still valid and what needs to be altered to produce viable theories that stand up to current evidence. This book brings together some of the most distinguished scientists in their fields to evaluate Marr's legacy. After a general introduction there are three chapters on the cerebellum, three on the hippocampus and two on the neocortex. The book ends with an appreciation of the life of David Marr by Lucia Vaina.

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