Memory guided saccade deficit after caudate nucleus lesion.

Vermersch, A I; Gaymard, B M; Rivaud-Pechoux, S; Ploner, C J; Agid, Y; Pierrot-Deseilligny, C · J Neurol Neurosurg Psychiatry · 1999

case_report · Level V

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Abstract

The role of the caudate nucleus in ocular motor control is not well determined in humans. Eye movements were recorded from a 45 year old man with infarctions involving bilaterally the body of the caudate nucleus, with a greater extent on the left side. The patient exhibited a pattern of eye movement abnormalities in which a delay dependent decrease of accuracy of memory guided saccades predominated. By contrast, memory guided pointing was normal. It is concluded that the body of the caudate nucleus participates in a spatial short term memory network devoted to eye movements.

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