Characteristic sounds make you look at target objects more quickly.
When you are looking for an object, does hearing its characteristic sound make you find it more quickly? Our recent results supported this possibility by demonstrating that when a cat target, for example, was presented among other objects, a simultaneously presented "meow" sound (containing no spatial information) reduced the manual response time for visual localization of the target. To extend these results, we determined how rapidly an object-specific auditory signal can facilitate target detection in visual search. On each trial, participants fixated a specified target object as quickly as possible. The target's characteristic sound speeded the saccadic search time within 215-220 msec and also guided the initial saccade toward the target, compared with presentation of a distractor's sound or with no sound. These results suggest that object-based auditory-visual interactions rapidly increase the target object's salience in visual search.
Northwestern University, Evanston, Illinois 60208-2710, USA.
Lucica
L
Iordanescu
Marcia
M
Grabowecky
Steven
S
Franconeri
Jan
J
Theeuwes
Satoru
S
Suzuki
D001244:Association; D001288:Attention; D001307:Auditory Perception; D006801:Humans; D010364:Pattern Recognition, Visual; D011930:Reaction Time; D012438:Saccades