Is one enough? The case for non-additive influences of visual features on crossmodal Stroop interference.

Appelbaum, Lawrence G

Donohue, Sarah E

Park, Christina J

Woldorff, Marty G

Switzerland

2017-01-31T19:02:12Z

2017-03-14T16:58:24Z

2017-03-16T13:44:42Z

2017-03-16T13:44:42Z

2013

When different perceptual signals arising from the same physical entity are integrated, they form a more reliable sensory estimate. When such repetitive sensory signals are pitted against other competing stimuli, such as in a Stroop Task, this redundancy may lead to stronger processing that biases behavior toward reporting the redundant stimuli. This bias would therefore, be expected to evoke greater incongruency effects than if these stimuli did not contain redundant sensory features. In the present paper we report that this is not the case for a set of three crossmodal, auditory-visual Stroop tasks. In these tasks participants attended to, and reported, either the visual or the auditory stimulus (in separate blocks) while ignoring the other, unattended modality. The visual component of these stimuli could be purely semantic (words), purely perceptual (colors), or the combination of both. Based on previous work showing enhanced crossmodal integration and visual search gains for redundantly coded stimuli, we had expected that relative to the single features, redundant visual features would have induced both greater visual distracter incongruency effects for attended auditory targets, and been less influenced by auditory distracters for attended visual targets. Overall, reaction times were faster for visual targets and were dominated by behavioral facilitation for the cross-modal interactions (relative to interference), but showed surprisingly little influence of visual feature redundancy. Post-hoc analyses revealed modest and trending evidence for possible increases in behavioral interference for redundant visual distracters on auditory targets, however, these effects were substantially smaller than anticipated and were not accompanied by a redundancy effect for behavioral facilitation or for attended visual targets.

https://www.ncbi.nlm.nih.gov/pubmed/24198800

https://hdl.handle.net/10161/13828

eng

Frontiers Media SA

Front Psychol

10.3389/fpsyg.2013.00799

http://hdl.handle.net/10161/13526

10161/13526

http://hdl.handle.net/10161/13823

10161/13823

multisensory conflict

redundancy gains

stimulus onset asynchrony (SOA)

stroop task

Is one enough? The case for non-additive influences of visual features on crossmodal Stroop interference.

Journal article

Appelbaum, Lawrence G|0000-0002-3184-6725

Woldorff, Marty G|0000-0002-2683-4551

https://www.ncbi.nlm.nih.gov/pubmed/24198800

799

Basic Science Departments

Center for Cognitive Neuroscience

Clinical Science Departments

Duke

Duke Institute for Brain Sciences

Duke Science & Society

Duke-UNC Center for Brain Imaging and Analysis

Initiatives

Institutes and Centers

Institutes and Provost's Academic Units

Neurobiology

Psychiatry & Behavioral Sciences

Psychiatry & Behavioral Sciences, Brain Stimulation and Neurophysiology

Psychiatry & Behavioral Sciences, Translational Neuroscience

Psychology and Neuroscience

School of Medicine

Trinity College of Arts & Sciences

University Institutes and Centers

Published online

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