11th Annual Conference of the International Speech Communication Association

Makuhari, Chiba, Japan
September 26-30. 2010

Full Body Aero-Tactile Integration in Speech Perception

Donald Derrick, Bryan Gick

University of British Columbia, Canada

We follow up on our research demonstrating that aero- tactile information can enhance or interfere with accurate au- ditory perception, even among uninformed and untrained per- ceivers [1]. Mimicking aspiration, we applied slight, inaudi- ble air puffs on participants skin at the right ankles, simulta- neously with syllables beginning with aspirated (‘pa’, ‘ta’) and unsapirated (‘ba’, ‘da’) stops, dividing the participants into two groups, those with hairy, and those with hairless ankles. Since hair follicle endings (mechanoreceptors) are used to detect air turbulence [2] we expected, and observed, that syllables heard simultaneously with cutaneous air puffs would be more likely to be heard as aspirated, but only among those with hairy an- kles. These results demonstrate that information from any part of the body can be integrated in speech perception, but the stim- uli must be unambiguously relatable to the speech event in order to be integrated into speech perception.

Full Paper

Bibliographic reference.  Derrick, Donald / Gick, Bryan (2010): "Full body aero-tactile integration in speech perception", In INTERSPEECH-2010, 122-125.