Hippocampal response to visual objects is related to visual memory functioning

Vannucci, Manila; Pezer, Nico; Helmstaedter, Christoph; Schaller, Karl Lothard; Viggiano, Maria Pia; Elger, Christian E.; Grunwald, Thomas

doi:10.1097/WNR.0b013e328302c89c

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Title		Hippocampal response to visual objects is related to visual memory functioning
Authors		Vannucci, Manila Pezer, Nico Helmstaedter, Christoph Schaller, Karl Lothard Viggiano, Maria Pia Elger, Christian E. Grunwald, Thomas
Published in		Neuroreport. 2008, vol. 19, no. 9, p. 965-968
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
Identifiers		DOI: 10.1097/WNR.0b013e328302c89c PMID: 18521002
Full text		Article - Limited access to UNIGE
Structures		Faculté de médecine / Section de médecine clinique / Département des neurosciences cliniques
Research group		Groupe Schaller Karl-Lothard (neurochirurgie) (851)
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 https://archive-ouverte.unige.ch/unige:19193