Event-Related Potentials in Young and Elderly Adults during a Visual Spatial Working Memory Task

The P300 event-related brain potential (ERP) was examined in 14 young (20–29 years of age) and 16 elderly (60–82 years of age) subjects during the performance of a visuospatial memory task requiring recognition of locations. Elderly and young adults exhibited similar recognition accuracy, but recogn...

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Published inClinical EEG and neuroscience Vol. 35; no. 4; pp. 185 - 192
Main Authors Knott, Verner, Millar, Anne, Dulude, Louise, Bradford, Lisa, Alwahhabi, Fahad, Lau, Tim, Shea, Catherine, Wiens, Andrew
Format Journal Article
LanguageEnglish
Published Los Angeles, CA SAGE Publications 01.10.2004
SAGE PUBLICATIONS, INC
Subjects
Adult
Aged
Aging - physiology
Analysis of Variance
Brain - physiology
Event-Related Potentials, P300 - physiology
Evoked Potentials, Auditory - physiology
Evoked Potentials, Visual - physiology
Female
Humans
Male
Middle Aged
Reaction Time
Statistics, Nonparametric
Memory Task
Aging
Visual-spatial
P300
Event-related Potential
Online AccessGet full text
ISSN1550-0594
2169-5202
DOI10.1177/155005940403500408

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Abstract The P300 event-related brain potential (ERP) was examined in 14 young (20–29 years of age) and 16 elderly (60–82 years of age) subjects during the performance of a visuospatial memory task requiring recognition of locations. Elderly and young adults exhibited similar recognition accuracy, but recognition reaction times were significantly slower in the elderly. Midline P300 amplitudes recorded in response to visuospatial probe stimuli were significantly attenuated in the elderly, and, depending on the nature of the probe, P300 latency-derived indices indicated that both cognitive and motoric slowness characterized visuospatial recognition in the aged. The results, discussed in relation to neural mechanisms supporting working memory function, suggest that alterations in attention and processing speed may play a role in visual-spatial working memory deficits associated with normal and pathological aging.
AbstractList The P300 event-related brain potential (ERP) was examined in 14 young (20–29 years of age) and 16 elderly (60–82 years of age) subjects during the performance of a visuospatial memory task requiring recognition of locations. Elderly and young adults exhibited similar recognition accuracy, but recognition reaction times were significantly slower in the elderly. Midline P300 amplitudes recorded in response to visuospatial probe stimuli were significantly attenuated in the elderly, and, depending on the nature of the probe, P300 latency-derived indices indicated that both cognitive and motoric slowness characterized visuospatial recognition in the aged. The results, discussed in relation to neural mechanisms supporting working memory function, suggest that alterations in attention and processing speed may play a role in visual-spatial working memory deficits associated with normal and pathological aging.
The P300 event-related brain potential (ERP) was examined in 14 young (20-29 years of age) and 16 elderly (60-82 years of age) subjects during the performance of a visuospatial memory task requiring recognition of locations. Elderly and young adults exhibited similar recognition accuracy, but recognition reaction times were significantly slower in the elderly. Midline P300 amplitudes recorded in response to visuospatial probe stimuli were significantly attenuated in the elderly, and, depending on the nature of the probe, P300 latency-derived indices indicated that both cognitive and motoric slowness characterized visuospatial recognition in the aged. The results, discussed in relation to neural mechanisms supporting working memory function, suggest that alterations in attention and processing speed may play a role in visual-spatial working memory deficits associated with normal and pathological aging.The P300 event-related brain potential (ERP) was examined in 14 young (20-29 years of age) and 16 elderly (60-82 years of age) subjects during the performance of a visuospatial memory task requiring recognition of locations. Elderly and young adults exhibited similar recognition accuracy, but recognition reaction times were significantly slower in the elderly. Midline P300 amplitudes recorded in response to visuospatial probe stimuli were significantly attenuated in the elderly, and, depending on the nature of the probe, P300 latency-derived indices indicated that both cognitive and motoric slowness characterized visuospatial recognition in the aged. The results, discussed in relation to neural mechanisms supporting working memory function, suggest that alterations in attention and processing speed may play a role in visual-spatial working memory deficits associated with normal and pathological aging.
Author Bradford, Lisa
Knott, Verner
Millar, Anne
Wiens, Andrew
Dulude, Louise
Alwahhabi, Fahad
Shea, Catherine
Lau, Tim
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BackLink https://www.ncbi.nlm.nih.gov/pubmed/15493533$$D View this record in MEDLINE/PubMed
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Snippet The P300 event-related brain potential (ERP) was examined in 14 young (20–29 years of age) and 16 elderly (60–82 years of age) subjects during the performance...
The P300 event-related brain potential (ERP) was examined in 14 young (20-29 years of age) and 16 elderly (60-82 years of age) subjects during the performance...
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StartPage 185
SubjectTerms Adult
Aged
Aging - physiology
Analysis of Variance
Brain - physiology
Event-Related Potentials, P300 - physiology
Evoked Potentials, Auditory - physiology
Evoked Potentials, Visual - physiology
Female
Humans
Male
Middle Aged
Reaction Time
Statistics, Nonparametric
Title Event-Related Potentials in Young and Elderly Adults during a Visual Spatial Working Memory Task
URI https://journals.sagepub.com/doi/full/10.1177/155005940403500408
https://www.ncbi.nlm.nih.gov/pubmed/15493533
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https://www.proquest.com/docview/66985820
Volume 35
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