Abstract:
:Shape is an inherent property of objects existing in both vision and touch but not audition. Can shape then be represented by sound artificially? It has previously been shown that sound can convey visual information by means of image-to-sound coding, but whether sound can code tactile information is not clear. Blindfolded sighted individuals were trained to recognize tactile spatial information using sounds mapped from abstract shapes. After training, subjects were able to match auditory input to tactually discerned shapes and showed generalization to novel auditory-tactile pairings. Furthermore, they showed complete transfer to novel visual shapes, despite the fact that training did not involve any visual exposure. In addition, we found enhanced tactile acuity specific to the training stimuli. The present study demonstrates that as long as tactile space is coded in a systematic way, shape can be conveyed via a medium that is not spatial, suggesting a metamodal representation.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Kim JK,Zatorre RJdoi
10.1007/s00221-010-2178-6subject
Has Abstractpub_date
2010-05-01 00:00:00pages
747-54issue
4eissn
0014-4819issn
1432-1106journal_volume
202pub_type
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