Superior Haptic Perceptual Selectivity in Late-Blind and Very-Low-Vision Subjects

Blindfolded sighted, congenitally blind, late-blind, and very-low-vision subjects were tested on a tangible version of the embedded-figures test. The results of ANOVAs on accuracy measures yielded superior performance by the very-low-vision and late-blind subjects compared with the blindfolded sight...

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Bibliographic Details
Published inPerception (London) Vol. 32; no. 4; pp. 499 - 511
Main Authors Heller, Morton A, Wilson, Kathy, Steffen, Heather, Yoneyama, Keiko, Brackett, Deneen D
Format Journal Article
LanguageEnglish
Published London, England SAGE Publications 01.01.2003
Pion
Subjects
Adult
Aged
Analysis of Variance
Biological and medical sciences
Blindness - congenital
Blindness - physiopathology
Discrimination (Psychology) - physiology
Female
Fundamental and applied biological sciences. Psychology
Humans
Male
Middle Aged
Perception
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Reaction Time
Tactile perception
Touch - physiology
Vision, Low - physiopathology
Human
Tactile sensitivity
Eye disease
Vision disorder
Blindness
Experimental study
Comparative study
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Summary:Blindfolded sighted, congenitally blind, late-blind, and very-low-vision subjects were tested on a tangible version of the embedded-figures test. The results of ANOVAs on accuracy measures yielded superior performance by the very-low-vision and late-blind subjects compared with the blindfolded sighted and congenitally blind participants. Accuracy of the congenitally blind subjects was similar to that of the blindfolded sighted participants. However, all groups of blind subjects were significantly faster than the blindfolded sighted subjects. It is suggested that experience with pictures combined with haptic skill aid perceptual selectivity in touch.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0301-0066
1468-4233
DOI:10.1068/p3423