Posthypnotic suggestion and the modulation of stroop interference under cycloplegia

Consciousness and Cognition 12 (3):332-346 (2003)

Abstract
Recent data indicate that under a specific posthypnotic suggestion to circumvent reading, highly suggestible subjects successfully eliminated the Stroop interference effect. The present study examined whether an optical explanation could account for this finding. Using cyclopentolate hydrochloride eye drops to pharmacologically prevent visual accommodation in all subjects, behavioral Stroop data were collected from six highly hypnotizables and six less suggestibles using an optical setup that guaranteed either sharply focused or blurred vision. The highly suggestibles performed the Stroop task when naturally vigilant, under posthypnotic suggestion not to read, and while visually blurred; the less suggestibles ran naturally vigilant, while looking away, and while visually blurred. Although visual accommodation was precluded for all subjects, posthypnotic suggestion effectively eliminated Stroop interference and was comparable to looking away in controls. These data strengthen the view that Stroop interference is neither robust nor inevitable and support the hypothesis that posthypnotic suggestion may exert a top-down influence on neural processing
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DOI 10.1016/S1053-8100(03)00024-2
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References found in this work BETA

Studies of Interference in Serial Verbal Reactions.J. R. Stroop - 1935 - Journal of Experimental Psychology 18 (6):643.
Toward an Instance Theory of Automatization.G. D. Logan - 1987 - Bulletin of the Psychonomic Society 25 (5):342-342.

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Citations of this work BETA

Implicit Learning.Axel Cleeremans - 1998 - Trends in Cognitive Sciences 2 (10):406-416.

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