Episodic and semantic memory influences on picture naming in Alzheimer's disease.

Episodic and semantic memory influences on picture naming in Alzheimer's disease. Research Abstract Details 

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Episodic and semantic memory influences on picture naming in Alzheimer's disease. Abstract Text:

Jeff A Small,Nirmaljeet Sandhu,Jeff A Small,Nirmaljeet Sandhu,

This study investigated the relationship between semantic and episodic memory as they support lexical access by healthy younger and older adults and individuals with Alzheimer's disease (AD). In particular, we were interested in examining the pattern of semantic and episodic memory declines in AD (i.e., word-finding difficulty and impaired recent memory) vis-à-vis more preserved remote memories. We administered a picture naming task in which the episodic period of the pictures and whether the pictured items were unique to one period or commonly used across periods were varied. Groups of younger adults (N=40), healthy older adults (N=20) and older adults with AD (N=18) were asked to name drawings of objects in four conditions: dated unique, contemporary unique, dated common, and contemporary common. The results indicated that all participants named items that were common to both episodic periods more successfully than items unique to one period. An interaction was observed such that the healthy older and AD groups were more successful in retrieving names of objects presented in the dated compared to contemporary unique conditions, whereas the younger adults showed the reverse pattern. These results indicate that naming ability is affected both by the cumulative frequency of using an item over a lifetime and by when an item was first acquired. The findings support a theoretical stance which proposes an enduring reciprocal link between semantic and episodic memory. This theoretical relationship has practical implications for the development of intervention strategies when interacting with persons who have AD.

Episodic and semantic memory influences on picture naming in Alzheimer's disease. Publishing Authors By Initials

JA Small,N Sandhu,JA Small,N Sandhu,

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Episodic and semantic memory influences on picture naming in Alzheimer's disease. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Brain and language

VOLUME: 104

Page Numbers: 1-9

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ISSN: 0093-934X

DAY: 16

MONTH: 01

YEAR: 2007

Episodic and semantic memory influences on picture naming in Alzheimer's disease. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Episodic and semantic memory influences on picture naming in Alzheimer's disease.

AFFILIATION: School of Audiology and Speech Sciences, University of British Columbia, 5804 Fairview Avenue, Vancouver, BC, Canada V6T 1Z3.

Country: United States

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MEDLINETA: Brain Lang

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