Spatial Asymmetries in Tactile Discrimination of Line Orientation: A Comparison of the Sighted, Visually Impaired, and Blind

Eugene C Lechelt

doi:10.1068/p170579

journal article Oct 01, 1988

Spatial Asymmetries in Tactile Discrimination of Line Orientation: A Comparison of the Sighted, Visually Impaired, and Blind

Eugene C Lechelt

Perception Vol. 17 No. 5 pp. 579-585 · SAGE Publications

View at Publisher Save 10.1068/p170579

Abstract

Thresholds for tactile discrimination of stimulus orientation discrepancy from standard or referent vertical, horizontal, and diagonal orientations were determined for sighted, visually impaired, and blind subject groups. The stimuli were presented to the ventral distal portion of the tip of the subject's left index finger via an Optacon. Although the subject groups did not differ in overall discrimination accuracy, for each group the deviations from vertical and horizontal standard orientations were discriminated reliably more accurately than the deviations from standard diagonals, ie the oblique effect was obtained. The bases for this tactual spatial anisotropic effect appear to reflect both sensory—neurological and experiential factors.

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References

29

[1]

10.1126/science.182.4113.729

[2]

10.1037/h0033117

[3]

10.1068/p150325

[4]

10.1068/p140763

[5]

10.3758/bf03212874

[6]

Bach-Y-Rita P Sensory World (1980)

[7]

10.1109/tmms.1970.299963

[8]

Bryant P E (1974)

[9]

10.1113/jphysiol.1970.sp009085

[10]

10.1037/0096-1523.6.1.151

[11]

10.3109/00207458309148645

[12]

10.1016/0028-3932(74)90056-6

[13]

10.1068/p090037

[14]

Multidimensional letter similarity derived from recognition errors

G. C. Gilmore, H. Hersh, A. Caramazza et al.

Perception & Psychophysics 10.3758/bf03199852

[15]

10.1056/nejm196901092800204

[16]

10.2307/1410867

[17]

10.3758/bf03202846

[18]

10.1177/0145482x8307700406

[19]

10.1097/00004356-198509000-00013

[20]

10.3758/bf03208283

[21]

10.1068/p090581

[22]

10.1126/science.1188370

[23]

10.1126/science.186.4169.1133

[24]

10.3758/bf03204207

[25]

Ross H W (1974)

[26]

Vallbo A B (1978)

[27]

10.3758/bf03208186

[28]

Wake T Bulletin of the Faculty of General Education Utsunomiya University (1982)

[29]

10.1080/00949657508810086

Metrics

19

Citations

29

References

Details

Published: Oct 01, 1988
Vol/Issue: 17(5)
Pages: 579-585
License: View

Authors

E

Eugene C Lechelt

Department of Psychology, University of Alberta, Edmonton, Alberta T6G 2E9, Canada

Cite This Article

Eugene C Lechelt (1988). Spatial Asymmetries in Tactile Discrimination of Line Orientation: A Comparison of the Sighted, Visually Impaired, and Blind. Perception, 17(5), 579-585. https://doi.org/10.1068/p170579

Spatial Asymmetries in Tactile Discrimination of Line Orientation: A Comparison of the Sighted, Visually Impaired, and Blind

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