Aging and contextual binding: modeling recency and lag recency effects with the temporal context model.

Full Abstract

Normal aging has been shown to spare recency effects in the initiation of free recall while disrupting temporally defined associations. The temporal context model (TCM) explains recency and temporally defined associations as consequences of a gradually changing context signal and recovery of those contextual states, respectively. Here we extend TCM to account for the dissociation between recency and temporally defined associations in younger and older adults. Modeling results suggested that the effect of aging was restricted to a decrement in the ability of items to recover the temporal contexts in which they were presented, a function that has been hypothesized to depend on the hippocampus.

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Author information

Author/s: Howard, Marc W (MW); Kahana, Michael J (MJ); Wingfield, Arthur (A);

Affiliation: Syracuse University, Department of Psychology, 430 Huntington Hall, Syracuse, NY 13244-2340, USA. marc(-atsign-)memory.syr.edu

Grants: AG15852 (Agency:NIA NIH HHS) ; MH069938 (Agency:NIMH NIH HHS) ; MH55687 (Agency:NIMH NIH HHS) ; R01 AG015852-02 (Agency:NIA NIH HHS) ; R01 MH055687-06 (Agency:NIMH NIH HHS) ; R01 MH069938-01 (Agency:NIMH NIH HHS) ; R01 MH069938-02 (Agency:NIMH NIH HHS)

Journal and publication information

Publication Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't

Journal: Psychonomic bulletin & review (Psychon Bull Rev), published in United States. (Language: eng)

Reference: 2006-Jun; vol 13 (issue 3) : pp 439-45

Dates: Created 2006/10/19; Completed 2007/01/10; Revised 2008/11/20;

PMID: 17048728, status: MEDLINE (last retrieval date: 12/26/2008)

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Aging
Hippocampus - physiology
Humans
Linguistics - statistics & numerical data

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