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Task conflict in the Stroop task: When Stroop interference decreases as Stroop facilitation increases in a low task conflict context

In the present study participants completed two blocks of the Stroop task, one in which the response-stimulus interval (RSI) was 3500 ms and one in which RSI was 200 ms. It was expected that, in line with previous research, the shorter RSI would induce a low Task Conflict context by increasing focus...

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Autor principal: Parris, Benjamin A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4202807/
https://www.ncbi.nlm.nih.gov/pubmed/25368593
http://dx.doi.org/10.3389/fpsyg.2014.01182
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author Parris, Benjamin A.
author_facet Parris, Benjamin A.
author_sort Parris, Benjamin A.
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description In the present study participants completed two blocks of the Stroop task, one in which the response-stimulus interval (RSI) was 3500 ms and one in which RSI was 200 ms. It was expected that, in line with previous research, the shorter RSI would induce a low Task Conflict context by increasing focus on the color identification goal in the Stroop task and lead to a novel finding of an increase in facilitation and simultaneous decrease in interference. Such a finding would be problematic for models of Stroop effects that predict these indices of performance should be affected in tandem. A crossover interaction is reported supporting these predictions. As predicted, the shorter RSI resulted in incongruent and congruent trial reaction times (RTs) decreasing relative to a static neutral baseline condition; hence interference decreased as facilitation increased. An explanatory model (expanding on the work of Goldfarb and Henik, 2007) is presented that: (1) Shows how under certain conditions the predictions from single mechanism models hold true (i.e., when Task conflict is held constant); (2) Shows how it is possible that interference can be affected by an experimental manipulation that leaves facilitation apparently untouched; and (3) Predicts that facilitation cannot be independently affected by an experimental manipulation.
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spelling pubmed-42028072014-11-03 Task conflict in the Stroop task: When Stroop interference decreases as Stroop facilitation increases in a low task conflict context Parris, Benjamin A. Front Psychol Psychology In the present study participants completed two blocks of the Stroop task, one in which the response-stimulus interval (RSI) was 3500 ms and one in which RSI was 200 ms. It was expected that, in line with previous research, the shorter RSI would induce a low Task Conflict context by increasing focus on the color identification goal in the Stroop task and lead to a novel finding of an increase in facilitation and simultaneous decrease in interference. Such a finding would be problematic for models of Stroop effects that predict these indices of performance should be affected in tandem. A crossover interaction is reported supporting these predictions. As predicted, the shorter RSI resulted in incongruent and congruent trial reaction times (RTs) decreasing relative to a static neutral baseline condition; hence interference decreased as facilitation increased. An explanatory model (expanding on the work of Goldfarb and Henik, 2007) is presented that: (1) Shows how under certain conditions the predictions from single mechanism models hold true (i.e., when Task conflict is held constant); (2) Shows how it is possible that interference can be affected by an experimental manipulation that leaves facilitation apparently untouched; and (3) Predicts that facilitation cannot be independently affected by an experimental manipulation. Frontiers Media S.A. 2014-10-20 /pmc/articles/PMC4202807/ /pubmed/25368593 http://dx.doi.org/10.3389/fpsyg.2014.01182 Text en Copyright © 2014 Parris. 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.
spellingShingle Psychology
Parris, Benjamin A.
Task conflict in the Stroop task: When Stroop interference decreases as Stroop facilitation increases in a low task conflict context
title Task conflict in the Stroop task: When Stroop interference decreases as Stroop facilitation increases in a low task conflict context
title_full Task conflict in the Stroop task: When Stroop interference decreases as Stroop facilitation increases in a low task conflict context
title_fullStr Task conflict in the Stroop task: When Stroop interference decreases as Stroop facilitation increases in a low task conflict context
title_full_unstemmed Task conflict in the Stroop task: When Stroop interference decreases as Stroop facilitation increases in a low task conflict context
title_short Task conflict in the Stroop task: When Stroop interference decreases as Stroop facilitation increases in a low task conflict context
title_sort task conflict in the stroop task: when stroop interference decreases as stroop facilitation increases in a low task conflict context
topic Psychology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4202807/
https://www.ncbi.nlm.nih.gov/pubmed/25368593
http://dx.doi.org/10.3389/fpsyg.2014.01182
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