Skip Navigation



Cerebral Cortex Advance Access published online on September 14, 2005
Cerebral Cortex, doi:10.1093/cercor/bhj037
This Article
Right arrow FREE Full Text (PDF) Freely available
Right arrow All Versions of this Article:
16/7/949    most recent
bhj037v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Wheeler, M. E.
Right arrow Articles by Petersen, S. E.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Wheeler, M. E.
Right arrow Articles by Petersen, S. E.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© The Author 2005. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oupjournals.org

Article

Evidence for Separate Perceptual Reactivation and Search Processes during Remembering

Mark E. Wheeler 1*, Gordon L. Shulman 2, Randy L. Buckner 3, Francis M. Miezin 4, Katerina Velanova 5, and Steven E. Petersen 6

1 Department of Radiology, Washington University, St Louis, MO 63110, USA
2 Department of Neurology, Washington University, St Louis, MO 63110, USA
3 Department of Radiology, Washington University, St Louis, MO 63110, USA; Department of Psychology, Washington University, St Louis, MO 63110, USA; Department of Anatomy & Neurobiology, Washington University, St Louis, MO 63110, USA; Howard Hughes Medical Institute, Washington University, St Louis, MO 63110, USA
4 Department of Radiology, Washington University, St Louis, MO 63110, USA; Department of Neurology, Washington University, St Louis, MO 63110, USA
5 Department of Psychology, Washington University, St Louis, MO 63110, USA
6 Department of Radiology, Washington University, St Louis, MO 63110, USA; Department of Neurology, Washington University, St Louis, MO 63110, USA; Department of Psychology, Washington University, St Louis, MO 63110, USA; Department of Anatomy & Neurobiology, Washington University, St Louis, MO 63110, USA

* To whom correspondence should be addressed.
Mark E. Wheeler, E-mail: wheelerm{at}pitt.edu


  Abstract

Remembering involves the coordinated recruitment of strategic search processes and processes involved in reconstructing the content of the past experience. In the present study we used a cueing paradigm based on event-related functional magnetic resonance imaging to separate activity in the initial preparation phases of retrieval from later phases during which retrieval search ensued, and detailed auditory and visual memories were reconstructed. Results suggest a dissociation among inferior temporal (IT) and parieto-occipital (PO) processing regions in how they were influenced by preparatory cues prior to remembering, and indicate a dissociation in how they were influenced by the subsequent validity of those cues during remembering. Regions in IT cortex appeared to show search-related activity during retrieval, as well as robust modality effects, but they were not influenced by preparatory cues. These findings suggest a specific role for IT regions in reconstruction of visual details during remembering. While dorsal regions in parietal and superior occipital cortex also appeared to show search-related activity as well as robust modality effects, they were also influenced by preparatory cues during the retrieval phase, and to a lesser degree during the cue phase. These findings indicate a role in integrating perceptual reactivation and search processes during remembering.

Keywords: attention; cueing; episodic memory; parieto-occipital; remembering; retrieval.
Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 J. Neurophysiol.Home page
C. F. Geier, K. Garver, R. Terwilliger, and B. Luna
Development of Working Memory Maintenance
J Neurophysiol, January 1, 2009; 101(1): 84 - 99.
[Abstract] [Full Text] [PDF]

Home page
 Cereb CortexHome page
J. D. Johnson and M. D. Rugg
Recollection and the Reinstatement of Encoding-Related Cortical Activity
Cereb Cortex, November 1, 2007; 17(11): 2507 - 2515.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurosci.Home page
E. J. Ploran, S. M. Nelson, K. Velanova, D. I. Donaldson, S. E. Petersen, and M. E. Wheeler
Evidence Accumulation and the Moment of Recognition: Dissociating Perceptual Recognition Processes Using fMRI
J. Neurosci., October 31, 2007; 27(44): 11912 - 11924.
[Abstract] [Full Text] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.