Marc O. Ernst studied multisensory cue combination using visual and haptic height information. Changing cue uncertainty tests whether observers adjust their weighting in the direction predicted by a statistical integration model. The experiment connects a perceptual estimate to measurable noise rather than assuming that one sensory modality always dominates. [ref]
Humans integrate visual and haptic information in a statistically optimal fashion by Marc O. Ernst and Martin S. Banks. 2002, visual-haptic estimates and uncertainty-dependent weights
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