Response anticipation and response conflict: an event-related potential and functional magnetic resonance imaging study.

Response anticipation and response conflict: an event-related potential and functional magnetic resonance imaging study. Research Abstract Details 

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Response anticipation and response conflict: an event-related potential and functional magnetic resonance imaging study. Abstract Text:

Jin Fan,Rachel Kolster,Jamshid Ghajar,Minah Suh,Robert T Knight,Ranjeeta Sarkar,Bruce D McCandliss,

Response anticipation and response conflict processes are supported by executive control. However, few neuroimaging studies have attempted to study the relationship between these two processes in the same experimental session. In this study, we isolated brain activity associated with response anticipation (after a cue to prepare vs relax) and with response conflict (responding to a target with incongruent vs congruent flankers) and examined the independence and interaction of brain networks supporting these processes using event-related potentials (ERPs) and functional magnetic resonance imaging. Response anticipation generated a contingent negative variation ERP that correlated with shorter reaction times, and was associated with activation of a thalamo-cortico-striatal network, as well as increased gamma band power in frontal and parietal regions, and decreased spectral power in theta, alpha, and beta bands in most regions. Response conflict was associated with increased activation in the anterior cingulate cortex (ACC) and prefrontal cortex of the executive control network, with an overlap in activation with response anticipation in regions including the middle frontal gyrus, ACC, and superior parietal lobule. Although the executive control network showed increased activation in response to unanticipated versus anticipated targets, the response conflict effect was not altered by response anticipation. These results suggest that common regions of a dorsal frontoparietal network and the ACC are engaged in the flexible control of a wide range of executive processes, and that response anticipation modulates overall activity in the executive control network but does not interact with response conflict processing.

Response anticipation and response conflict: an event-related potential and functional magnetic resonance imaging study. Publishing Authors By Initials

J Fan,R Kolster,J Ghajar,M Suh,RT Knight,R Sarkar,BD McCandliss,

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Response anticipation and response conflict: an event-related potential and functional magnetic resonance imaging study. Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: The Journal of neuroscience : the official journal

VOLUME: 27

Page Numbers: 2272-82

Journal Abbreviation: J. Neurosci.

ISSN: 1529-2401

DAY: 28

MONTH: Feb

YEAR: 2007

Response anticipation and response conflict: an event-related potential and functional magnetic resonance imaging study. Information

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LANGUAGE: eng

NlmUniqueID: 8102140

Response anticipation and response conflict: an event-related potential and functional magnetic resonance imaging study. Keywords Mesh Terms:

KEYWORDS: Reference Values

MESH TERMS: physiology

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Grant and Affiliation Information for Response anticipation and response conflict: an event-related potential and functional magnetic resonance imaging study.

AFFILIATION: Department of Psychiatry, Mount Sinai School of Medicine, New York, New York 10029, USA. Jin.Fan@mssm.edu

Country: United States

AGENCY: United States NIDCD

GRANT: R01DC007694

ACRONYM: DC

MEDLINETA: J Neurosci

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