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Lifespan development of stimulus-response conflict cost: similarities and differences between maturation and senescence

Age gradient of the mechanism of stimulus-response conflict cost was investigated in a population-based representative sample of 291 individuals, covering the age range from 6 to 89 years. Stimulus-response conflict cost, indicated by the amount of additional processing time required when there is a...

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Autores principales: Li, Shu-Chen, Hämmerer, Dorothea, Müller, Viktor, Hommel, Bernhard, Lindenberger, Ulman
Formato: Texto
Lenguaje:English
Publicado: Springer-Verlag 2008
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2847161/
https://www.ncbi.nlm.nih.gov/pubmed/19023594
http://dx.doi.org/10.1007/s00426-008-0190-2
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author Li, Shu-Chen
Hämmerer, Dorothea
Müller, Viktor
Hommel, Bernhard
Lindenberger, Ulman
author_facet Li, Shu-Chen
Hämmerer, Dorothea
Müller, Viktor
Hommel, Bernhard
Lindenberger, Ulman
author_sort Li, Shu-Chen
collection PubMed
description Age gradient of the mechanism of stimulus-response conflict cost was investigated in a population-based representative sample of 291 individuals, covering the age range from 6 to 89 years. Stimulus-response conflict cost, indicated by the amount of additional processing time required when there is a conflict between stimulus and response options, follows a U-shaped function across the lifespan. Lifespan age gradient of conflict cost parallels closely those of processing fluctuation and fluid intelligence. Individuals at both ends of the lifespan displayed a greater amount of processing fluctuation and at the same time a larger amount of conflict cost and a lower level of fluid intelligence. After controlling for chronological age and baseline processing speed, conflict cost continues to correlate significantly with fluid intelligence in adulthood and old age and with processing fluctuation in old age. The relation between processing fluctuation and conflict cost in old age lends further support for the neuromodulation of neuronal noise theory of cognitive aging as well as for theories of dopaminergic modulation of conflict monitoring.
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spelling pubmed-28471612010-04-05 Lifespan development of stimulus-response conflict cost: similarities and differences between maturation and senescence Li, Shu-Chen Hämmerer, Dorothea Müller, Viktor Hommel, Bernhard Lindenberger, Ulman Psychol Res Original Article Age gradient of the mechanism of stimulus-response conflict cost was investigated in a population-based representative sample of 291 individuals, covering the age range from 6 to 89 years. Stimulus-response conflict cost, indicated by the amount of additional processing time required when there is a conflict between stimulus and response options, follows a U-shaped function across the lifespan. Lifespan age gradient of conflict cost parallels closely those of processing fluctuation and fluid intelligence. Individuals at both ends of the lifespan displayed a greater amount of processing fluctuation and at the same time a larger amount of conflict cost and a lower level of fluid intelligence. After controlling for chronological age and baseline processing speed, conflict cost continues to correlate significantly with fluid intelligence in adulthood and old age and with processing fluctuation in old age. The relation between processing fluctuation and conflict cost in old age lends further support for the neuromodulation of neuronal noise theory of cognitive aging as well as for theories of dopaminergic modulation of conflict monitoring. Springer-Verlag 2008-11-21 2009-11 /pmc/articles/PMC2847161/ /pubmed/19023594 http://dx.doi.org/10.1007/s00426-008-0190-2 Text en © Springer-Verlag 2008
spellingShingle Original Article
Li, Shu-Chen
Hämmerer, Dorothea
Müller, Viktor
Hommel, Bernhard
Lindenberger, Ulman
Lifespan development of stimulus-response conflict cost: similarities and differences between maturation and senescence
title Lifespan development of stimulus-response conflict cost: similarities and differences between maturation and senescence
title_full Lifespan development of stimulus-response conflict cost: similarities and differences between maturation and senescence
title_fullStr Lifespan development of stimulus-response conflict cost: similarities and differences between maturation and senescence
title_full_unstemmed Lifespan development of stimulus-response conflict cost: similarities and differences between maturation and senescence
title_short Lifespan development of stimulus-response conflict cost: similarities and differences between maturation and senescence
title_sort lifespan development of stimulus-response conflict cost: similarities and differences between maturation and senescence
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2847161/
https://www.ncbi.nlm.nih.gov/pubmed/19023594
http://dx.doi.org/10.1007/s00426-008-0190-2
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