Integrating multimodal information about surface texture via aprobe: relative contributions of haptic and touch-produced sound sources
Lederman, S.J.; Klatzky, R.L.; Morgan, T.; Hamilton, C.
Haptic Interfaces for Virtual Environment and Teleoperator Systems, 2002. HAPTICS 2002. Proceedings. 10th Symposium on
Volume , Issue , 2002 Page(s):97 - 104
Digital Object Identifier   10.1109/HAPTIC.2002.998946
Summary:We experimentally assessed the relative contributions of tactile and auditory information to multisensory (i.e., bimodal) judgments of surface roughness using a rigid probe. Participants judged the magnitude of surface roughness and their corresponding confidence in three modality conditions: touch-only, audition-only (i.e., touch-produced sounds only) and touch+audition. The results indicated that touch cues were weighted 62% and auditory cues 38% in the bimodal judgments. Participants also proved to be more confident of their judgments in the bimodal condition. Implications for the creation of virtual roughness presented through uni- vs. multimodal interfaces is also addressed

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