Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Orbito-frontal Cortex is Necessary for Temporal Context Memory

Orbito-frontal Cortex is Necessary for Temporal Context Memory Lesion and neuroimaging studies suggest that orbito-frontal cortex (OFC) supports temporal aspects of episodic memory. However, it is unclear whether OFC contributes to the encoding and/or retrieval of temporal context and whether it is selective for temporal relative to nontemporal (spatial) context memory. We addressed this issue with two complimentary studies: functional magnetic resonance imaging to measure OFC activity associated with successful temporal and spatial context memory during encoding and retrieval in healthy young participants, and a neuropsychological investigation to measure changes in spatial and temporal context memory in OFC lesion patients. Imaging results revealed that OFC contributed to encoding and retrieval of associations between objects and their temporal but not their spatial contexts. Consistent with this, OFC patients exhibited impairments in temporal but not spatial source memory accuracy. These results suggest that OFC plays a critical role in the formation and subsequent retrieval of temporal context. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Cognitive Neuroscience MIT Press

Orbito-frontal Cortex is Necessary for Temporal Context Memory

Loading next page...
 
/lp/mit-press/orbito-frontal-cortex-is-necessary-for-temporal-context-memory-TJeLj6eu5z

References (69)

Publisher
MIT Press
Copyright
© 2009 Massachusetts Institute of Technology
Subject
Articles
ISSN
0898-929X
eISSN
1530-8898
DOI
10.1162/jocn.2009.21316
pmid
19642880
Publisher site
See Article on Publisher Site

Abstract

Lesion and neuroimaging studies suggest that orbito-frontal cortex (OFC) supports temporal aspects of episodic memory. However, it is unclear whether OFC contributes to the encoding and/or retrieval of temporal context and whether it is selective for temporal relative to nontemporal (spatial) context memory. We addressed this issue with two complimentary studies: functional magnetic resonance imaging to measure OFC activity associated with successful temporal and spatial context memory during encoding and retrieval in healthy young participants, and a neuropsychological investigation to measure changes in spatial and temporal context memory in OFC lesion patients. Imaging results revealed that OFC contributed to encoding and retrieval of associations between objects and their temporal but not their spatial contexts. Consistent with this, OFC patients exhibited impairments in temporal but not spatial source memory accuracy. These results suggest that OFC plays a critical role in the formation and subsequent retrieval of temporal context.

Journal

Journal of Cognitive NeuroscienceMIT Press

Published: Aug 1, 2010

There are no references for this article.