GlicksteinM-2007

Notes about [GlicksteinM-2007] 1.

1

Mitch Glickstein. What does the cerebellum really do? Current Biology, 17(19):4, 2007. doi:10.1016/j.cub.2007.08.009, Notes: GlicksteinM-2007.html (this file).

States that:

The cerebellum is probably the single most important link between visual and motor areas of the cerebral cortex. What sort of visual information reaches the cerebellum? In monkeys there are two groups of cortical areas that process visual information beyond the primary visual cortex. A dorsal, medially located group that is dominated by cells that are responsive primarily to moving stimuli, and a ventral group involved in visual recognition. Ungerleider and Mishkin [14] based their suggested grouping of visual areas — “where is it?” versus “what is it?” — on the behavioural effects of lesions. Jack May and I [15] based our distinction between a medial and a lateral group on the difference in the pontine projections of the two groups. The dorsal group is connected to the cerebellum by way of the pons; the lateral, more ventrally placed group is not. Information on movement of objects and of the body in relation to its surroundings is sent continuously to the cerebellum by cells in the dorsal cortical visual areas. Lesions of the dorsal group, including the cortex within the angular gyrus in monkeys [16] and a similar cortical area in humans [17] produce a lasting deficit in visual guidance of movement of the arms and fingers. Lesions of the ventral group do not.