[Disordered higher mental functions in lesions of different parts of the caudate nucleus]

The relation between deterioration in higher mental functions and localization of the brain pathological process was studied in 22 patients with arteriovenous malformation in the head or/and the body of the caudate nucleus using the methods of multivariate statistics and structurally organized neuropsychological information. It was shown that the lesions in the caudate nucleus body resulted in disturbances of the spatial functions. Pathological foci in the head of the caudate nucleus were associated with memory disorders (the right-side foci were accompanied by deterioration in the visual memory and the left-side ones by that in the audio-verbal memory) and modification of programming and control of voluntary activity.