Context Preexposure Prevents Forgetting of a Contextual Fear Memory: Implication for Regional Changes in Brain Activation Patterns Associated with Recent and Remote Memory Tests

Autor/inn/en	Biedenkapp, Joseph C.; Rudy, Jerry W.
Titel	Context Preexposure Prevents Forgetting of a Contextual Fear Memory: Implication for Regional Changes in Brain Activation Patterns Associated with Recent and Remote Memory Tests
Quelle	In: Learning & Memory, 14 (2007) 3, S.200-203 (4 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1072-0502
DOI	10.1101/lm.499407
Schlagwörter	Intervals; Conditioning; Fear; Generalization; Retention (Psychology); Memory; Animals; Context Effect; Neurology; Neurological Organization + Suchen Sie Ihr Suchwort? Furcht; Merkfähigkeit; Gedächtnis; Animal; Tier; Tiere; Neurologie
Abstract	Contextual fear conditioning was maintained over a 15-day retention interval suggesting no forgetting of the conditioning experience. However, a more subtle generalization test revealed that, as the retention interval increased, rats showed enhanced generalized fear to an altered context. Preexposure to the training context prior to conditioning, however, prevented this enhanced generalized fear from developing. These results support the hypothesis that the memory representation of the context degrades as the memory ages and is responsible for enhanced generalization. The implications of these results for systems consolidation versus forgetting interpretations of regional changes in neural activation patterns that occur as memories age are discussed. (Author).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10