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Perception & Psychophysics : Volume 65

Perception & Psychophysics : Volume 64

Perception & Psychophysics : Volume 63

Perception & Psychophysics : Volume 62

Perception & Psychophysics : Volume 61

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Perception & Psychophysics : Volume 59

External and body-centered frames of reference in spatial memory: Evidence from touch

Content Provider	Springer Nature Link
Author	Millar, Susanna Al Attar, Zainab
Copyright Year	2004
Abstract	The study reports independent effects of external and body-centered reference cues on spatial coding of an irregular sequence of haptic locations. The aim was to investigate the nature of spatial coding by using a modality that does not provide distal cues routinely. Our method isolates and combines body-centered and external spatial reference cues for irregularly placed locations, scanned along a raised-line route. Disrupting body-centered reference for the locations, by orienting the map differently to the body in the test phase than in the presentation phase, doubled errors in positioning the locations along the route in recall. Adding external reference, by giving instructions to use a surrounding frame for reference when body-centered coding was disrupted, reduced errors to near baseline (no-rotation) levels. Adding external reference cues to intact (not displaced) body-centered reference halved errors, as compared with the baseline. The results are consistent with the hypothesis that accurate spatial coding is determined by the congruence of potential reference cues from diverse sources. The new findings suggest that external and body-centered reference cues have independent additive effects on spatial coding. The sequence of locations had a significant effect in all the reference conditions, suggesting the additional use of fortuitous but distinctive local touch cues on the route. The discussion considers theoretical and practical implications of the results.
Starting Page	51
Ending Page	59
Page Count	9
File Format	PDF
ISSN	00315117
Journal	Perception & Psychophysics
Volume Number	66
Issue Number	1
e-ISSN	15325962
Language	English
Publisher	Springer-Verlag
Publisher Date	2004-01-01
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Cognitive Psychology
Content Type	Text
Resource Type	Article
Subject	Experimental and Cognitive Psychology Sensory Systems Psychology

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