ABSTRACT
David Marr was an English theoretical neuroscientist, who attempted to model how the brain works by using a combination of hard biological fact and computational analysis – work that was to have its biggest impact on explaining vision. He also made important contributions to the understanding of the cerebellum, hippocampus and neocortex. The cerebellum is an evolutionary old structure, which has become especially intricate in humans, making up only about 10% of our brains mass, yet containing some 50% of its neurons. According to Marr, the process of memory storage first begins when events in the outside world are represented by patterns of neural activity in associative areas of the neocortex. The crux of Marr's approach to vision, however, lies with nature of the computations the visual system performs in order to transform a retinal image into a rich visual experience.
