Wismeijer D A, Gegenfurtner K R, Drewing K, 2011, "Associations between haptic softness cues and visual gloss cues" Perception 40 ECVP Abstract Supplement, page 137
Associations between haptic softness cues and visual gloss cues
D A Wismeijer, K R Gegenfurtner, K Drewing
When naturaly unrelated visual and haptic cues, such as the luminance and the stiffness of an object, are statistically correlated, this leads to the perceptual association of the two cues [Ernst, 2007 Journal of Vision 7(5):7, 1–14]. Here we ask whether such arbitrary correlations influence judgments in each single sense and how this influence depends on the natural relation between a sense and the judged dimension. We artificially correlated haptic compliance cues with visual gloss cues. Observers either judged glossiness (naturally related to vision) or softness (naturally related to haptics). We measured the haptic influence on visual judgments and the visual influence on haptic judgments using 2-IFC tasks: Participants discriminated between two visual stimuli, of which one was coupled with a haptic stimulus (visual judgments), or between two haptic stimuli, of which one was coupled with a visual stimulus. The experiment consisted of a baseline session with uncorrelated visual gloss and haptic compliance cues and a learning and testing phase in which both cues were correlated. Participants, partly, showed associations between the arbitrary cues prior to learning. Learning clearly strengthened the association between the two cues.
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