TY - GEN
T1 - Multisensory interactions of audiovisual stimuli presented at different locations in auditory-attention tasks
T2 - 2009 IEEE International Conference on Mechatronics and Automation, ICMA 2009
AU - Li, Qi
AU - Wu, Jinglong
PY - 2009
Y1 - 2009
N2 - we applied behavioral and event-related potential (ERP) measures to study the multisensory interactions of audiovisual stimuli presented at different locations in an auditory-attention task in which an irrelevant visual stimulus occasionally accompanied the auditory stimulus. A stream of visual (V), auditory (A), spatially congruent audiovisual (AV-Con), and spatially incongruent audiovisual (AV-Inc) stimuli were randomly presented to the left and/or right side; subjects covertly attended to the auditory stimuli on either the left or right side and promptly responded to auditory targets on that side. In present study, we only investigated the results which were related with multisensory interactions of audiovisual stimuli presented at different locations. ERPs to A, V-Inc which is at opposite locations with A, and AV-Inc stimuli were recorded. The neural basis of multisensory interactions of audiovisual stimuli presented at different location was studied by comparing ERPs to the AV-Inc stimuli with the sum of the ERPs to the unimodal A and V-Inc stimuli. ERPs results showed that main audiovisual interactions were found as a negativity in mid-central scalp sites around a latency of 300ms during the later stage of processing. The present results revealed the neural basis of multisensory interaction of audiovisual stimuli presented at different locations in an auditory-attention task. The study can offer base data for multi-sensor data fusion algorithms and robotics.
AB - we applied behavioral and event-related potential (ERP) measures to study the multisensory interactions of audiovisual stimuli presented at different locations in an auditory-attention task in which an irrelevant visual stimulus occasionally accompanied the auditory stimulus. A stream of visual (V), auditory (A), spatially congruent audiovisual (AV-Con), and spatially incongruent audiovisual (AV-Inc) stimuli were randomly presented to the left and/or right side; subjects covertly attended to the auditory stimuli on either the left or right side and promptly responded to auditory targets on that side. In present study, we only investigated the results which were related with multisensory interactions of audiovisual stimuli presented at different locations. ERPs to A, V-Inc which is at opposite locations with A, and AV-Inc stimuli were recorded. The neural basis of multisensory interactions of audiovisual stimuli presented at different location was studied by comparing ERPs to the AV-Inc stimuli with the sum of the ERPs to the unimodal A and V-Inc stimuli. ERPs results showed that main audiovisual interactions were found as a negativity in mid-central scalp sites around a latency of 300ms during the later stage of processing. The present results revealed the neural basis of multisensory interaction of audiovisual stimuli presented at different locations in an auditory-attention task. The study can offer base data for multi-sensor data fusion algorithms and robotics.
KW - Audiovisual interaction
KW - Electrophysiology
KW - Event-related potentials
KW - Multi-sensor data fusion
UR - http://www.scopus.com/inward/record.url?scp=77449097800&partnerID=8YFLogxK
U2 - 10.1109/ICMA.2009.5245991
DO - 10.1109/ICMA.2009.5245991
M3 - Conference contribution
AN - SCOPUS:77449097800
SN - 9781424426935
T3 - 2009 IEEE International Conference on Mechatronics and Automation, ICMA 2009
SP - 146
EP - 151
BT - 2009 IEEE International Conference on Mechatronics and Automation, ICMA 2009
Y2 - 9 August 2009 through 12 August 2009
ER -
