Abstract
This study examined visuotactile cross-modal interactions in the identification of tactile stimuli. In Experiment 1, participants were required to discriminate the orientation of tactile target stimuli (line segments with left and right diagonal orientations) presented at the tip of the participant's left index finger via an Optacon, while trying to ignore a task-irrelevant visual diagonal line presented with a 200-ms or 700-ms stimulus onset asynchrony (SOA). The results show that the participants responded faster when the orientation of the tactile stimuli were congruent with the orientation of the visual stimuli than when they were incongruent in the 200-ms SOA condition. To assess at what level of processing the reaction time advantage obtained with congruent orientation trials takes place, Experiment 2 served as a replication of Experiment 1 with somatosensory event-related brain potential (ERP) recordings. ERP effects of orientation congruency were observed between 200 and 350 ms post-stimulus, suggesting that visuotactile cross-modal interactions may occur at intermediate perceptual-cognitive stages rather than at early sensory-specific or late motor-related stages.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.