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Disruption of synaesthesia by posthypnotic suggestion: An ERP study
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Disruption of synaesthesia by posthypnotic suggestion: An ERP study

Author: Devin Blair Terhune Affiliation: Department of Psychology, Lund University, Sweden; Etzel Cardeña Affiliation: Department of Psychology, Lund University, Sweden; Magnus Lindgren Affiliation: Department of Psychology, Lund University, Sweden
Edition/Format: Article Article : English
Publication:Neuropsychologia, v48 n11 (201009): 3360-3364
Other Databases: WorldCatWorldCatWorldCat
Summary:
This study examined whether the behavioral and electrophysiological correlates of synaesthetic response conflict could be disrupted by posthypnotic suggestion. We recorded event-related brain potentials while a highly suggestible face-color synaesthete and matched controls viewed congruently and incongruently colored faces in a color-naming task. The synaesthete, but not the controls, displayed slower response  Read more...
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Document Type: Article
All Authors / Contributors: Devin Blair Terhune Affiliation: Department of Psychology, Lund University, Sweden; Etzel Cardeña Affiliation: Department of Psychology, Lund University, Sweden; Magnus Lindgren Affiliation: Department of Psychology, Lund University, Sweden
ISSN:0028-3932
Language Note: English
Unique Identifier: 5901216635
Notes: Corresponding author at: Department of Psychology, Lund University, Box 213, 22100 Lund, Sweden. Tel.: +46 462224608; fax: +46 462224609.
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Abstract:

This study examined whether the behavioral and electrophysiological correlates of synaesthetic response conflict could be disrupted by posthypnotic suggestion. We recorded event-related brain potentials while a highly suggestible face-color synaesthete and matched controls viewed congruently and incongruently colored faces in a color-naming task. The synaesthete, but not the controls, displayed slower response times, and greater P1 and sustained N400 ERP components over frontal-midline electrodes for incongruent than congruent faces. The behavioral and N400 markers of response conflict, but not the P1, were abolished following a posthypnotic suggestion for the termination of the participant's synaesthesia and reinstated following the cancellation of the suggestion. These findings demonstrate that the conscious experience of synaesthesia can be temporarily abolished by cognitive control.

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