Publication Date:
2005-12-24
Description:
Here we describe a functional magnetic resonance imaging study of humans engaged in memory search during a free recall task. Patterns of cortical activity associated with the study of three categories of pictures (faces, locations, and objects) were identified by a pattern-classification algorithm. The algorithm was used to track the reappearance of these activity patterns during the recall period. The reappearance of a given category's activity pattern correlates with verbal recalls made from that category and precedes the recall event by several seconds. This result is consistent with the hypothesis that category-specific activity is cueing the memory system to retrieve studied items.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Polyn, Sean M -- Natu, Vaidehi S -- Cohen, Jonathan D -- Norman, Kenneth A -- MH070177-01/MH/NIMH NIH HHS/ -- R01MH052864/MH/NIMH NIH HHS/ -- R01MH069456/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2005 Dec 23;310(5756):1963-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology, University of Pennsylvania, Philadelphia, PA 19104, USA. polyn@psych.upenn.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16373577" target="_blank"〉PubMed〈/a〉
Keywords:
Adult
;
Algorithms
;
Brain/*physiology
;
*Brain Mapping
;
Female
;
Form Perception/physiology
;
Humans
;
Magnetic Resonance Imaging
;
Male
;
Memory/*physiology
;
Mental Recall/physiology
;
Space Perception/physiology
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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