Scientific article
English

Hippocampal response to visual objects is related to visual memory functioning

Published inNeuroreport, vol. 19, no. 9, p. 965-968
Publication date2008
Abstract

The medial temporal lobe participates not only in episodic memory, but also in visual object processing. Here we asked whether these processes are linked within the human hippocampus. To this end, we recorded field potentials directly from the hippocampus proper during a visual object decision task in temporal lobe epilepsy patients with either normal or below normal visual memory performance. Only in patients with normal visual memory, did the hippocampus proper differentiate reliably between real and nonsense objects, whereas neural responses to both kinds of objects were virtually the same in patients whose visual memory performance was reduced. These findings suggest that neural responses to visual objects within the hippocampus proper are directly linked to visual memory performance.

Keywords
  • Adolescent
  • Adult
  • Analysis of Variance
  • Electroencephalography/methods
  • Epilepsy, Temporal Lobe/*pathology/*physiopathology
  • Evoked Potentials, Visual/*physiology
  • Female
  • Hippocampus/*physiopathology
  • Humans
  • Male
  • Memory/*physiology
  • Middle Aged
  • Neuropsychological Tests
  • Pattern Recognition, Visual/*physiology
  • Photic Stimulation/methods
Citation (ISO format)
VANNUCCI, Manila et al. Hippocampal response to visual objects is related to visual memory functioning. In: Neuroreport, 2008, vol. 19, n° 9, p. 965–968. doi: 10.1097/WNR.0b013e328302c89c
Main files (1)
Article
accessLevelRestricted
Identifiers
Journal ISSN0959-4965
598views
0downloads

Technical informations

Creation27/03/2012 09:23:56
First validation27/03/2012 09:23:56
Update time14/03/2023 17:21:15
Status update14/03/2023 17:21:14
Last indexation29/10/2024 19:15:07
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack