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Spontaneous revisitation during visual exploration as a link among strategic behavior, learning, and the hippocampus

Voss, Joel L. ; Warren, David E. ; Gonsalves, Brian D. ; Federmeier, Kara D. ; Tranel, Dan ; Cohen, Neal J.

Proceedings of the National Academy of Sciences - PNAS, 2011-08, Vol.108 (31), p.12581-12582 [Periódico revisado por pares]

United States: National Academy of Sciences

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Título:
Spontaneous revisitation during visual exploration as a link among strategic behavior, learning, and the hippocampus
Autor: Voss, Joel L. ; Warren, David E. ; Gonsalves, Brian D. ; Federmeier, Kara D. ; Tranel, Dan ; Cohen, Neal J.
Assuntos: Adolescent ; Adult ; Amnesia - physiopathology ; Behavior ; Biological Sciences ; Brain ; Brain - physiology ; Brain - physiopathology ; Cerebellum - physiology ; Cerebellum - physiopathology ; Cognition & reasoning ; Discrimination (Psychology) - physiology ; Exploratory Behavior - physiology ; Female ; Frontal Lobe - pathology ; Frontal Lobe - physiopathology ; Hippocampus - physiology ; Hippocampus - physiopathology ; Humans ; Learning ; Learning - physiology ; Magnetic Resonance Imaging ; Male ; Memory ; Memory, Long-Term - physiology ; Pattern Recognition, Visual - physiology ; PNAS Plus ; PNAS PLUS (AUTHOR SUMMARIES) ; Visual Perception - physiology ; Young Adult
É parte de: Proceedings of the National Academy of Sciences - PNAS, 2011-08, Vol.108 (31), p.12581-12582
Notas: ObjectType-Article-2
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Author contributions: J.L.V., D.E.W., B.D.G., K.D.F., D.T., and N.J.C. designed research; J.L.V. performed research; J.L.V. analyzed data; and J.L.V., D.E.W., B.D.G., K.D.F., D.T., and N.J.C. wrote the paper.
Edited by James L. McClelland, Stanford University, Stanford, CA, and approved June 28, 2011 (received for review January 10, 2011)
Descrição: Effective exploratory behaviors involve continuous updating of sensory sampling to optimize the efficacy of information gathering. Despite some work on this issue in animals, little information exists regarding the cognitive or neural mechanisms for this sort of behavioral optimization in humans. Here we examined a visual exploration phenomenon that occurred when human subjects studying an array of objects spontaneously looked “backward” in their scanning paths to view recently seen objects again. This “spontaneous revisitation” of recently viewed objects was associated with enhanced hippocampal activity and superior subsequent memory performance in healthy participants, but occurred only rarely in amnesic patients with severe damage to the hippocampus. These findings demonstrate the necessity of the hippocampus not just in the aspects of long-term memory with which it has been associated previously, but also in the short-term adaptive control of behavior. Functional neuroimaging showed hippocampal engagement occurring in conjunction with frontocerebellar circuits, thereby revealing some of the larger brain circuitry essential for the strategic deployment of information-seeking behaviors that optimize learning.
Editor: United States: National Academy of Sciences
Idioma: Inglês

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Spontaneous revisitation during visual exploration as a link among strategic behavior, learning, and the hippocampus

Voss, Joel L. ; Warren, David E. ; Gonsalves, Brian D. ; Federmeier, Kara D. ; Tranel, Dan ; Cohen, Neal J.

United States: National Academy of Sciences

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