Functional magnetic resonance imaging measure of automatic and controlled auditory processing.
Journal Article (Journal Article)
Activity within fronto-striato-temporal regions during processing of unattended auditory deviant tones and an auditory target detection task was investigated using event-related functional magnetic resonance imaging. Activation within the middle frontal gyrus, inferior frontal gyrus, anterior cingulate gyrus, superior temporal gyrus, thalamus, and basal ganglia were analyzed for differences in activity patterns between the two stimulus conditions. Unattended deviant tones elicited robust activation in the superior temporal gyrus; by contrast, attended tones evoked stronger superior temporal gyrus activation and greater frontal and striatal activation. The results suggest that attention enhances neural activation evoked by auditory pitch deviance in auditory brain regions, possibly through top-down control from the dorsolateral prefrontal cortex involved in goal-directed selection and response generation.
Full Text
Duke Authors
Cited Authors
- Mitchell, TV; Morey, RA; Inan, S; Belger, A
Published Date
- April 4, 2005
Published In
Volume / Issue
- 16 / 5
Start / End Page
- 457 - 461
PubMed ID
- 15770151
Pubmed Central ID
- PMC2685199
International Standard Serial Number (ISSN)
- 0959-4965
Digital Object Identifier (DOI)
- 10.1097/00001756-200504040-00008
Language
- eng
Conference Location
- England