The effect of age on attentional modulation in Dichotic listening.

Autor:	Takio F; Department of Psychology, University of Turku, Turku, Finland. fiia.takio@uti.fi, Koivisto M, Jokiranta L, Rashid F, Kallio J, Tuominen T, Laukka SJ, Hämäläinen H
Jazyk:	angličtina
Zdroj:	Developmental neuropsychology [Dev Neuropsychol] 2009; Vol. 34 (3), pp. 225-39.
DOI:	10.1080/87565640902805669
Abstrakt:	The right-ear advantage (REA) in Dichotic listening (DL) reflects stimulus-driven bottom-up asymmetry in speech processing. The REA can be modified by top-down attentional control. We investigated attentional control in DL task as a function of age. A total of 186 participants between the ages of 5 and 79 years were tested. The youngest children demonstrated a REA that was not modified by attention, suggesting that bottom-up functional asymmetry was present. The 10-11-year-olds began to show ability to voluntarily modify DL, but only young adults were fully capable of doing so. In 59-79-year-olds, this top-down attentional control was lost again.
Databáze:	MEDLINE
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