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Neuroimage. 2006 Mar;30(1):285-98. Epub 2005 Oct 28.

Ecphory of autobiographical memories: an fMRI study of recent and remote memory retrieval.

Author information

1
MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA 02129, USA. ssteinv@nmr.mgh.harvard.edu

Abstract

Ecphory occurs when one recollects a past event cued by a trigger, such as a picture, odor, or name. It is a central component of autobiographical memory, which allows us to "travel mentally back in time" and re-experience specific events from our personal past. Using fMRI and focusing on the role of medial temporal lobe (MTL) structures, we investigated the brain bases of autobiographical memory and whether they change with the age of memories. Importantly, we used an ecphory task in which the remote character of the memories was ensured. The results showed that a large bilateral network supports autobiographical memory: temporal lobe, temporo-parieto-occipital junction, dorsal prefrontal cortex, medial frontal cortex, retrosplenial cortex and surrounding areas, and MTL structures. This network, including MTL structures, changed little with the age of the memories.

PMID:
16257547
PMCID:
PMC1513614
DOI:
10.1016/j.neuroimage.2005.09.025
[Indexed for MEDLINE]
Free PMC Article

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