Verbal knowledge and speed of information processing as mediators of age differences in verbal fluency performance among older adults

J Bryan, M A Luszcz, John Robertson Crawford

Research output: Contribution to journalArticle

100 Citations (Scopus)

Abstract

Age-related declines in verbal fluency among a large sample of older adults were investigated. Background variables, verbal knowledge, and speed of processing were examined as predictors of verbal fluency and its mediators of age effects. As expected, age-related declines were greater on the excluded letter fluency task than on the initial letter fluency task. Verbal knowledge was a better predictor of initial letter fluency than speed of processing, whereas the reverse was true for excluded letter fluency. However, speed of processing accounted for more of the age-related variance in both fluency measures than the other predictors. There was no evidence of verbal knowledge compensating for age-related declines in verbal fluency. Results suggest that verbal fluency performance is well maintained in late life and that any age-related decline appears to be mainly due to declines in speed of information processing.

Original languageEnglish
Pages (from-to)473-478
Number of pages6
JournalPsychology and Aging
Volume12
Issue number3
Publication statusPublished - Sep 1997

Keywords

  • LIFE
  • MEMORY

Cite this

Verbal knowledge and speed of information processing as mediators of age differences in verbal fluency performance among older adults. / Bryan, J ; Luszcz, M A ; Crawford, John Robertson.

In: Psychology and Aging, Vol. 12, No. 3, 09.1997, p. 473-478.

Research output: Contribution to journalArticle

@article{f67c396b6b0f4701900aa097ead066a6,
title = "Verbal knowledge and speed of information processing as mediators of age differences in verbal fluency performance among older adults",
abstract = "Age-related declines in verbal fluency among a large sample of older adults were investigated. Background variables, verbal knowledge, and speed of processing were examined as predictors of verbal fluency and its mediators of age effects. As expected, age-related declines were greater on the excluded letter fluency task than on the initial letter fluency task. Verbal knowledge was a better predictor of initial letter fluency than speed of processing, whereas the reverse was true for excluded letter fluency. However, speed of processing accounted for more of the age-related variance in both fluency measures than the other predictors. There was no evidence of verbal knowledge compensating for age-related declines in verbal fluency. Results suggest that verbal fluency performance is well maintained in late life and that any age-related decline appears to be mainly due to declines in speed of information processing.",
keywords = "LIFE, MEMORY",
author = "J Bryan and Luszcz, {M A} and Crawford, {John Robertson}",
year = "1997",
month = "9",
language = "English",
volume = "12",
pages = "473--478",
journal = "Psychology and Aging",
issn = "0882-7974",
publisher = "American Psychological Association Inc.",
number = "3",

}

TY - JOUR

T1 - Verbal knowledge and speed of information processing as mediators of age differences in verbal fluency performance among older adults

AU - Bryan, J

AU - Luszcz, M A

AU - Crawford, John Robertson

PY - 1997/9

Y1 - 1997/9

N2 - Age-related declines in verbal fluency among a large sample of older adults were investigated. Background variables, verbal knowledge, and speed of processing were examined as predictors of verbal fluency and its mediators of age effects. As expected, age-related declines were greater on the excluded letter fluency task than on the initial letter fluency task. Verbal knowledge was a better predictor of initial letter fluency than speed of processing, whereas the reverse was true for excluded letter fluency. However, speed of processing accounted for more of the age-related variance in both fluency measures than the other predictors. There was no evidence of verbal knowledge compensating for age-related declines in verbal fluency. Results suggest that verbal fluency performance is well maintained in late life and that any age-related decline appears to be mainly due to declines in speed of information processing.

AB - Age-related declines in verbal fluency among a large sample of older adults were investigated. Background variables, verbal knowledge, and speed of processing were examined as predictors of verbal fluency and its mediators of age effects. As expected, age-related declines were greater on the excluded letter fluency task than on the initial letter fluency task. Verbal knowledge was a better predictor of initial letter fluency than speed of processing, whereas the reverse was true for excluded letter fluency. However, speed of processing accounted for more of the age-related variance in both fluency measures than the other predictors. There was no evidence of verbal knowledge compensating for age-related declines in verbal fluency. Results suggest that verbal fluency performance is well maintained in late life and that any age-related decline appears to be mainly due to declines in speed of information processing.

KW - LIFE

KW - MEMORY

M3 - Article

VL - 12

SP - 473

EP - 478

JO - Psychology and Aging

JF - Psychology and Aging

SN - 0882-7974

IS - 3

ER -