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American Psychological Association, Journal of Experimental Psychology: Human Perception and Performance, 4(38), p. 833-837

DOI: 10.1037/a0028131

American Psychological Association, Psychology of Consciousness: Theory, Research, and Practice, S(1), p. 160-166

DOI: 10.1037/2326-5523.1.s.160

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Temporal Constraints of the Word Blindness Posthypnotic Suggestion on Stroop Task Performance

Journal article published in 2012 by Benjamin A. Parris, Zoltan Dienes ORCID, Timothy L. Hodgson ORCID
This paper is available in a repository.
This paper is available in a repository.

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Abstract

The present work investigated possible temporal constraints on the posthypnotic word blindness suggestion effect. In a completely within-subjects and counterbalanced design 19 highly suggestible individuals performed the Stroop task both with and without a posthypnotic suggestion that they would be unable to read the word dimension of the Stroop stimulus, both when response-stimulus interval (RSI) was short (500 ms) or equivalent to previous studies (3500 ms). The suggestion reduced Stroop interference in the short RSI condition (54 vs. 6 ms) but not in the long RSI condition (52 vs. 56 ms), and did not affect Stroop facilitation. Our results suggest that response to the suggestion involves reactive top-down control processes that persist only if levels of activation can be maintained. (PsycINFO Database Record (c) 2012 APA, all rights reserved).