AI Article Synopsis
- Previous research found that our brains can adjust for slight timing differences between sounds and visuals.
- This study experimented to see if the brain could do the same for sounds and touch, where participants were exposed to sounds and tactile signals either in sync or with a slight delay.
- Results indicated that participants found it harder to judge the order of sounds and touches after being exposed to the delayed stimuli, suggesting that our brains have a mechanism to adjust for timing differences in combined sensory input.
Article Abstract
Previous research has revealed the existence of perceptual mechanisms that compensate for slight temporal asynchronies between auditory and visual signals. We investigated whether temporal recalibration would also occur between auditory and tactile stimuli. Participants were exposed to streams of brief auditory and tactile stimuli presented in synchrony, or else with the auditory stimulus leading by 75ms. After the exposure phase, the participants made temporal order judgments regarding pairs of auditory and tactile events occurring at varying stimulus onset asynchronies. The results showed that the minimal interval necessary to correctly resolve audiotactile temporal order was larger after exposure to the desynchronized streams than after exposure to the synchronous streams. This suggests the existence of a mechanism to compensate for audiotactile asynchronies that results in a widening of the temporal window for multisensory integration.
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| http://dx.doi.org/10.1016/j.neulet.2006.11.027 | DOI Listing |
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