A haptic face-inversion effect.
We examined whether a face-inversion effect occurs when participants explore faces by touch. We used a haptic version of the inversion paradigm with 3-D clay facemasks and non-face control objects (teapots) moulded from real objects. Young, neurologically intact, blindfolded participants performed a temporally unconstrained haptic same/different task in each of four stimulus conditions: upright facemasks, inverted facemasks, upright teapots, and inverted teapots. There was a significant inversion effect for faces in terms of accuracy, but none for teapots. The results are considered in terms of the consequences of sequential manual exploration for haptic face processing.
Kilgour
Andrea R
AR
Department of Clinical Health Psychology, University of Manitoba, Winnipeg, Canada. akilgour@hsc.mb.ca
Lederman
Susan J
SJ
D000328:Adult; D004192:Discrimination, Psychological; D005145:Face; D005260:Female; D006801:Humans; D008297:Male; D010469:Perceptual Distortion; D011601:Psychophysics; D021641:Recognition, Psychology; D013236:Stereognosis