Let us turn now to another important aspect of cerebral function. A review of symptoms suggests that no logically derived element of behavior can be shown to have a definite localization; no single sensation, memory, or skilled movement is destroyed alone by any lesion. On the contrary the various parts of the functional areas seem equipotential for such elements, and either a whole constellation of them is affected by the lesion, or none at all. In these constellations of activities the grouping is determined, not by associative bonds, but by similarities of organization.

doi : 10.5214/ans.0972.7531.2010.170108