Is the right amygdala involved in visuospatial memory? Evidence from MRI volumetric measures

Alan J. Pegna, Anne Sarah Caldara-Schnetzer, Stephen H. Perrig, François Lazeyras, Asaid Khateb, Theodor Landis, Margitta Seeck

Research output: Contribution to journalArticlepeer-review

Abstract

Quantitative MRI measurement of hippocampal sclerosis in patients suffering from temporal lobe epilepsy (TLE) have, as yet, failed to evidence any correlation between the right hippocampus and visuospatial memory. In this report, word learning and design learning tasks were carried out as well as MRI volumetric measurements of the hippocampus and amygdala in order to verify possible modality-specific correlations between function and structure. Delayed recall indices in our memory tasks provided significant results. Visuoverbal ratios differed between right and left TLE groups, as did laterality indices of hippocampal and amygdalar volumes. Furthermore, correlations were found between the left hippocampal volume and verbal memory, and between the right amygdala and visuospatial memory. We suggest that the difficulty encountered in establishing a correlation between right temporal structures and visuospatial memory could come both from the type of test employed and the structures considered.

Original languageEnglish
Pages (from-to)148-155
Number of pages8
JournalEuropean Neurology
Volume47
Issue number3
DOIs
StatePublished - 2002
Externally publishedYes

Keywords

  • Amygdala
  • Cognition
  • Epilepsy
  • Hippocampus
  • Magnetic resonance imaging
  • Memory
  • Neuropsychology
  • Volumetric measures

ASJC Scopus subject areas

  • Clinical Neurology
  • Neurology

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