New insights into the Stroop effect: A spatio-temporal analysis of electric brain activity

Asaid Khateb; Christoph M. Michel; Alan J. Pegna; Theodor Landis; Jean Marie Annoni

doi:10.1097/00001756-200006260-00010

New insights into the Stroop effect: A spatio-temporal analysis of electric brain activity

Asaid Khateb, Christoph M. Michel, Alan J. Pegna, Theodor Landis, Jean Marie Annoni

Research output: Contribution to journal › Article › peer-review

Abstract

Recent clinical and imaging studies suggest the involvement of anterior brain regions in the Stroop effect without providing consensus on the hemisphere being involved. Here, we investigated the dynamics of brain activation during a modified Stroop task using behavioural, event-related potential map series and source localization analysis. Behavioural analysis showed an increased RT in the interference (IC) as compared to the neutral (NC) and congruence conditions (CC). Map series analysis in these conditions displayed a similar sequence of 10 stable segments. From these, only segment S6, occurring at ~300 ms and displaying a dominant right anterior activation, was of increased duration in IC. Furthermore, in IC only, RT was shown to correlate with S6 duration. These results are discussed in terms of increased duration of an attentional process needed to solve the conflict. (C) 2000 Lippincott Williams and Wilkins.

Original language	English
Pages (from-to)	1849-1855
Number of pages	7
Journal	NeuroReport
Volume	11
Issue number	9
DOIs	https://doi.org/10.1097/00001756-200006260-00010
State	Published - 26 Jun 2000
Externally published	Yes

Keywords

Brain mapping
Event-related potentials
Selective attention
Source localization
Stroop task
Temporal segmentation

ASJC Scopus subject areas

Neuroscience (all)

Access to Document

10.1097/00001756-200006260-00010

Cite this

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title = "New insights into the Stroop effect: A spatio-temporal analysis of electric brain activity",

abstract = "Recent clinical and imaging studies suggest the involvement of anterior brain regions in the Stroop effect without providing consensus on the hemisphere being involved. Here, we investigated the dynamics of brain activation during a modified Stroop task using behavioural, event-related potential map series and source localization analysis. Behavioural analysis showed an increased RT in the interference (IC) as compared to the neutral (NC) and congruence conditions (CC). Map series analysis in these conditions displayed a similar sequence of 10 stable segments. From these, only segment S6, occurring at ~300 ms and displaying a dominant right anterior activation, was of increased duration in IC. Furthermore, in IC only, RT was shown to correlate with S6 duration. These results are discussed in terms of increased duration of an attentional process needed to solve the conflict. (C) 2000 Lippincott Williams and Wilkins.",

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AU - Khateb, Asaid

AU - Michel, Christoph M.

AU - Pegna, Alan J.

AU - Landis, Theodor

AU - Annoni, Jean Marie

PY - 2000/6/26

Y1 - 2000/6/26

N2 - Recent clinical and imaging studies suggest the involvement of anterior brain regions in the Stroop effect without providing consensus on the hemisphere being involved. Here, we investigated the dynamics of brain activation during a modified Stroop task using behavioural, event-related potential map series and source localization analysis. Behavioural analysis showed an increased RT in the interference (IC) as compared to the neutral (NC) and congruence conditions (CC). Map series analysis in these conditions displayed a similar sequence of 10 stable segments. From these, only segment S6, occurring at ~300 ms and displaying a dominant right anterior activation, was of increased duration in IC. Furthermore, in IC only, RT was shown to correlate with S6 duration. These results are discussed in terms of increased duration of an attentional process needed to solve the conflict. (C) 2000 Lippincott Williams and Wilkins.

AB - Recent clinical and imaging studies suggest the involvement of anterior brain regions in the Stroop effect without providing consensus on the hemisphere being involved. Here, we investigated the dynamics of brain activation during a modified Stroop task using behavioural, event-related potential map series and source localization analysis. Behavioural analysis showed an increased RT in the interference (IC) as compared to the neutral (NC) and congruence conditions (CC). Map series analysis in these conditions displayed a similar sequence of 10 stable segments. From these, only segment S6, occurring at ~300 ms and displaying a dominant right anterior activation, was of increased duration in IC. Furthermore, in IC only, RT was shown to correlate with S6 duration. These results are discussed in terms of increased duration of an attentional process needed to solve the conflict. (C) 2000 Lippincott Williams and Wilkins.

KW - Brain mapping

KW - Event-related potentials

KW - Selective attention

KW - Source localization

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KW - Temporal segmentation

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New insights into the Stroop effect: A spatio-temporal analysis of electric brain activity

Abstract

Keywords

ASJC Scopus subject areas

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