TY - JOUR
T1 - Lifespan development of phonemic and semantic fluency
T2 - Universal increase, differential decrease
AU - Kavé, Gitit
AU - Knafo-Noam, Ariel
N1 - Publisher Copyright:
© 2015 Taylor & Francis.
PY - 2015/8/9
Y1 - 2015/8/9
N2 - The aim of this study was to examine whether performance on phonemic and semantic fluency tasks follows similar lifespan trajectories. Data from 1212 Hebrew-speakers aged 5-86 years were analyzed. Both linear and curvilinear quadratic models fit the data, reflecting a general increase in ability with age, as well as an increase followed by a decrease beyond this linear rise. A significant interaction between task type and the curvilinear effect demonstrated differential lifespan patterns of performance on each task. While scores improved similarly on the phonemic and semantic tasks during childhood, late-life decline was more noticeable on the semantic task, possibly due to the unique characteristics of aging-related word retrieval difficulties.
AB - The aim of this study was to examine whether performance on phonemic and semantic fluency tasks follows similar lifespan trajectories. Data from 1212 Hebrew-speakers aged 5-86 years were analyzed. Both linear and curvilinear quadratic models fit the data, reflecting a general increase in ability with age, as well as an increase followed by a decrease beyond this linear rise. A significant interaction between task type and the curvilinear effect demonstrated differential lifespan patterns of performance on each task. While scores improved similarly on the phonemic and semantic tasks during childhood, late-life decline was more noticeable on the semantic task, possibly due to the unique characteristics of aging-related word retrieval difficulties.
KW - Category fluency
KW - Cognitive aging
KW - Lifespan development
KW - Verbal fluency
KW - Word retrieval
UR - http://www.scopus.com/inward/record.url?scp=84940024192&partnerID=8YFLogxK
U2 - 10.1080/13803395.2015.1065958
DO - 10.1080/13803395.2015.1065958
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C2 - 26299188
AN - SCOPUS:84940024192
SN - 1380-3395
VL - 37
SP - 751
EP - 763
JO - Journal of Clinical and Experimental Neuropsychology
JF - Journal of Clinical and Experimental Neuropsychology
IS - 7
ER -