Haptic discrimination of doubly curved surfaces

A.M.L. Kappers, Jan J. Koenderink, Susan F. te Pas

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

21 Citaten (Scopus)


Active haptic discrimination of mathematically well-defined surfaces was investigated. The quadric surfaces were defined in terms of 'shape index'--a quantity describing shape--and 'curvedness'--a quantity describing overall curvature. In these experiments shape index was varied and curvedness kept constant. The influence of laterality (unilateral versus bilateral discrimination) was tested in separate sessions. No influence of shape on the discrimination of solid objects was found. From the results an estimate can be made of the just-noticeable difference in terms of shape-index units. There was a significant effect of laterality on discrimination: performance with unilateral (successive) examination (both with left and with right hand) was better than with bilateral (simultaneous) examination.

Originele taal-2Engels
Pagina's (van-tot)1483-1490
Aantal pagina's8
Nummer van het tijdschrift12
StatusGepubliceerd - 1 jan 1994
Extern gepubliceerdJa

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