Adaptation to recent conflict in the classical color-word Stroop-task mainly involves facilitation of processing of task-relevant information

To process information selectively and to continuously fine-tune selectivity of information processing are important abilities for successful goal-directed behavior. One phenomenon thought to represent this fine-tuning are conflict adaptation effects in interference tasks, i.e., reduction of interfe...

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Main Authors:	Purmann, Sascha, Pollmann, Stefan
Format:	Online
Language:	English
Published:	Frontiers Media S.A. 2015
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4347451/

id	pubmed-4347451
recordtype	oai_dc
spelling	pubmed-43474512015-03-17 Adaptation to recent conflict in the classical color-word Stroop-task mainly involves facilitation of processing of task-relevant information Purmann, Sascha Pollmann, Stefan Neuroscience To process information selectively and to continuously fine-tune selectivity of information processing are important abilities for successful goal-directed behavior. One phenomenon thought to represent this fine-tuning are conflict adaptation effects in interference tasks, i.e., reduction of interference after an incompatible trial and when incompatible trials are frequent. The neurocognitive mechanisms of these effects are currently only partly understood and results from brainimaging studies so far are mixed. In our study we validate and extend recent findings by examining adaption to recent conflict in the classical Stroop task using functional magnetic resonance imaging. Consistent with previous research we found increased activity in a fronto-parietal network comprising the medial prefrontal cortex, ventro-lateral prefrontal cortex, and posterior parietal cortex when contrasting incompatible with compatible trials. These areas have been associated with attentional processes and might reflect increased cognitive conflict and resolution thereof during incompatible trials. While carefully controlling for non-attentional sequential effects we found smaller Stroop interference after an incompatible trial (conflict adaptation effect). These behavioral conflict adaptation effects were accompanied by changes in activity in visual color-selective areas (V4, V4α), while there was no modulation by previous trial compatibility in a visual word-selective area (VWFA). Our results provide further evidence for the notion, that adaptation to recent conflict seems to be based mainly on enhancement of processing of the task-relevant information. Frontiers Media S.A. 2015-03-03 /pmc/articles/PMC4347451/ /pubmed/25784868 http://dx.doi.org/10.3389/fnhum.2015.00088 Text en Copyright © 2015 Purmann and Pollmann. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Purmann, Sascha Pollmann, Stefan
spellingShingle	Purmann, Sascha Pollmann, Stefan Adaptation to recent conflict in the classical color-word Stroop-task mainly involves facilitation of processing of task-relevant information
author_facet	Purmann, Sascha Pollmann, Stefan
author_sort	Purmann, Sascha
title	Adaptation to recent conflict in the classical color-word Stroop-task mainly involves facilitation of processing of task-relevant information
title_short	Adaptation to recent conflict in the classical color-word Stroop-task mainly involves facilitation of processing of task-relevant information
title_full	Adaptation to recent conflict in the classical color-word Stroop-task mainly involves facilitation of processing of task-relevant information
title_fullStr	Adaptation to recent conflict in the classical color-word Stroop-task mainly involves facilitation of processing of task-relevant information
title_full_unstemmed	Adaptation to recent conflict in the classical color-word Stroop-task mainly involves facilitation of processing of task-relevant information
title_sort	adaptation to recent conflict in the classical color-word stroop-task mainly involves facilitation of processing of task-relevant information
description	To process information selectively and to continuously fine-tune selectivity of information processing are important abilities for successful goal-directed behavior. One phenomenon thought to represent this fine-tuning are conflict adaptation effects in interference tasks, i.e., reduction of interference after an incompatible trial and when incompatible trials are frequent. The neurocognitive mechanisms of these effects are currently only partly understood and results from brainimaging studies so far are mixed. In our study we validate and extend recent findings by examining adaption to recent conflict in the classical Stroop task using functional magnetic resonance imaging. Consistent with previous research we found increased activity in a fronto-parietal network comprising the medial prefrontal cortex, ventro-lateral prefrontal cortex, and posterior parietal cortex when contrasting incompatible with compatible trials. These areas have been associated with attentional processes and might reflect increased cognitive conflict and resolution thereof during incompatible trials. While carefully controlling for non-attentional sequential effects we found smaller Stroop interference after an incompatible trial (conflict adaptation effect). These behavioral conflict adaptation effects were accompanied by changes in activity in visual color-selective areas (V4, V4α), while there was no modulation by previous trial compatibility in a visual word-selective area (VWFA). Our results provide further evidence for the notion, that adaptation to recent conflict seems to be based mainly on enhancement of processing of the task-relevant information.
publisher	Frontiers Media S.A.
publishDate	2015
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4347451/
_version_	1613194529003798528

Adaptation to recent conflict in the classical color-word Stroop-task mainly involves facilitation of processing of task-relevant information

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