| Effects of posthypnotic suggestion on perceived egocentric distance. | |
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MedLine Citation:
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PMID: 7443395 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The effects of posthypnotic suggestion on the perception of egocentric distance were evaluated by two methods, one direct and the other indirect. The direct method was the verbal report of the perceived distance of the stimulus. The indirect method used a measure based on apparent concomitant motion of the stimulus with a lateral movement of the head. The indirect method, unlike the direct method, has been shown to be insensitive to cognitive biases. Two highly trained hypnotic observers received posthypnotic suggestions to see a point of light at approximately 2, 4, or 6 ft (61, 122, or 183 cm) from themselves. For each suggested distance the light was physically at 2, 4, or 6 ft. As a control, trails were completed using these same physical distances without the posthypnotic suggestions. Nine experimental trails, one for each combination of suggested distance and physical distance, constituted a trial set. One observer completed three sets, and the other completed two sets. It was found that the posthypnotic suggestions affected the direct but not the indirect measures of the perceived distances of the light. |
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Authors:
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P J MacCracken; W C Gogel; G S Blum |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: Perception Volume: 9 ISSN: 0301-0066 ISO Abbreviation: Perception Publication Date: 1980 |
Date Detail:
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Created Date: 1981-02-26 Completed Date: 1981-02-26 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0372307 Medline TA: Perception Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 561-8 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Cognition Distance Perception* Female Humans Hypnosis* Light Movement Suggestion |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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