Material perception is a multisensory process, in which every sensory modality provides diverse information about the material. Parchment Skin Illusion shows that while rubbing our hands and hearing a soft sound would make us feel our skin is soft, but hearing a harsh sound during the same action would make us feel our skin as rough. Present study aims to investigate this illusion on 3D material perception by auditory and haptic cues. Two experiments reported here: Results of first experiment show that perceived material properties from only sound is very similar to perceived properties of haptic material perception with an exception of differences in hard-soft ratings of materials. In the second experiment, the tactile stimuli were given together with congruent and incongruent auditory cues. MANOVA results of our findings on the effect of auditory cues on haptic material perception demonstrate that the Parchment Skin Illusion transfers to real-life 3D-objects for some material dimensions.
