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Literature DB >> 7843296

The role of the right medial temporal lobe in the control of memory-guided saccades.

R M Müri¹, S Rivaud, S Timsit, P Cornu, C Pierrot-Deseilligny.

Abstract

The role of the hippocampal formation in the control of memory-guided saccades is unclear. We tested two types of memory-guided saccades with short memorization delay in three patients with a lesion affecting the right medial temporal lobe and involving the hippocampal formation. In single memory-guided saccades, testing spatial working memory, the gain of the patient group did not differ from that of an age-matched control group. In contrast, in sequences of memory-guided saccades, testing chronological working memory, there was a marked and significant increase in the percentage of erroneous sequences in patients, compared to controls. These results suggest an important role of the hippocampal formation in the memorization of the chronological order of saccade sequences. In contrast, this structure does not appear to be crucial for spatial working memory, used in single memory-guided saccades.

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Year: 1994 PMID： 7843296 DOI： 10.1007/bf00243227

Source DB: PubMed Journal: Exp Brain Res ISSN： 0014-4819 Impact factor: 1.972

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6 in total

1. Effects of transcranial magnetic stimulation over the region of the supplementary motor area during sequences of memory-guided saccades.

Authors: R M Müri; S Rivaud; A I Vermersch; J M Léger; C Pierrot-Deseilligny
Journal: Exp Brain Res Date: 1995 Impact factor: 1.972