Effects of advancing age on the processing of semantic anomalies in adults: Evidence from event-related brain potentials

Faustmann, A., Murdoch, B. E., Finnigan, S. P. and Copland, D. A. (2007) Effects of advancing age on the processing of semantic anomalies in adults: Evidence from event-related brain potentials. Experimental Aging Research, 33 4: 439-460. doi:10.1080/03610730701525378


Author Faustmann, A.
Murdoch, B. E.
Finnigan, S. P.
Copland, D. A.
Title Effects of advancing age on the processing of semantic anomalies in adults: Evidence from event-related brain potentials
Journal name Experimental Aging Research   Check publisher's open access policy
ISSN 0361-073X
1096-4657
Publication date 2007
Sub-type Article (original research)
DOI 10.1080/03610730701525378
Volume 33
Issue 4
Start page 439
End page 460
Total pages 22
Place of publication Washington, DC, U.S.A.
Publisher Taylor & Francis
Collection year 2008
Language eng
Subject 730303 Occupational, speech and physiotherapy
C1
321025 Rehabilitation and Therapy - Hearing and Speech
1117 Public Health and Health Services
Formatted abstract
Age-related changes in the processing of sentence-embedded semantic anomalies were examined using auditory event-related potentials (ERPs). Semantically incongruous words elicited an N400 effect in middle-aged (50s: 55.6 years) and elderly (60s: 64.1 years) subjects, whereas in older elderly adults (70s: 74.9 years) this effect approached significance. N400 peak latencies were not delayed with advancing age; however, there was a reliable linear decrease in mean and peak amplitude, with slopes being similar to those previously reported for the visual N400 effect. A P600 effect was obtained in response to semantic anomalies and it was neither delayed in latency nor reduced in amplitude with advancing age. However, it was found to be larger over anterior sites in elderly and older elderly subjects.
Copyright © Taylor & Francis Group, LLC
Keyword Geriatrics & Gerontology
Psychology
Older-adults
Electrophysiological exploration
Scalp distribution
Sentence context
Working-memory
Lexical access
Time-course
Information
Language
Young
Q-Index Code C1
Q-Index Status Confirmed Code

 
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Created: Mon, 18 Feb 2008, 15:07:40 EST