The influence of stimulus tilt on haptic curvature matching and discrimination by dynamic touch

Sylvia C. Pont, Astrid M L Kappers, Jan J. Koenderink

Research output: Contribution to journalArticleScientificpeer-review

10 Citations (Scopus)

Abstract

We investigated whether haptic comparison of the curvature of strips is influenced by the tilt (the average slope relative to the horizontal) of the curved strips. This particular stimulus manipulation was chosen to decide between two broad ways in which dynamic curvature comparison might be done: on the basis of the attitude (slope) differences over the surfaces or on the basis of the attitude (slope) differences between successively presented surfaces. For this purpose we conducted matching and discrimination experiments in which strips of constant curvature 9 cm long were touched dynamically and the tilts of the strips were varied. The results of the matching experiment showed some influence of tilt: the strips were judged to be slightly more curved if the tilt was nonzero than if it was zero. The results of the discrimination experiment did not show an effect of tilt. Because the attitude (slope) differences over the surfaces were independent of the tilt it is concluded that curvature comparison is based primarily on attitude differences over the curved surfaces.

Original languageEnglish
Pages (from-to)869-880
Number of pages12
JournalPerception
Volume27
Issue number7
Publication statusPublished - 1998

Fingerprint Dive into the research topics of 'The influence of stimulus tilt on haptic curvature matching and discrimination by dynamic touch'. Together they form a unique fingerprint.

Cite this