Touch, sound and vision in human superior temporal sulcus
Human superior temporal sulcus (STS) is thought to be a key brain area for multisensory integration. Many neuroimaging studies have reported integration of auditory and visual information in STS but less is known about the role of STS in integrating other sensory modalities. In macaque STS, the supe...
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Published in | NeuroImage (Orlando, Fla.) Vol. 41; no. 3; pp. 1011 - 1020 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
United States
Elsevier Inc
01.07.2008
Elsevier Limited |
Subjects | |
Online Access | Get full text |
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Summary: | Human superior temporal sulcus (STS) is thought to be a key brain area for multisensory integration. Many neuroimaging studies have reported integration of auditory and visual information in STS but less is known about the role of STS in integrating other sensory modalities. In macaque STS, the superior temporal polysensory area (STP) responds to somatosensory, auditory and visual stimulation. To determine if human STS contains a similar area, we measured brain responses to somatosensory, auditory and visual stimuli using blood-oxygen level dependent functional magnetic resonance imaging (BOLD fMRI). An area in human posterior STS, STSms (multisensory), responded to stimulation in all three modalities. STSms responded during both active and passive presentation of unisensory somatosensory stimuli and showed larger responses for more intense
vs. less intense tactile stimuli, hand
vs. foot, and contralateral
vs. ipsilateral tactile stimulation. STSms showed responses of similar magnitude for unisensory tactile and auditory stimulation, with an enhanced response to simultaneous auditory–tactile stimulation. We conclude that STSms is important for integrating information from the somatosensory as well as the auditory and visual modalities, and could be the human homolog of macaque STP. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-Article-1 ObjectType-Feature-2 M.S.B. designed and conducted the experiments, analyzed the data, and wrote the manuscript. T.R. designed the experiments, N.E.Y. conducted experiments and R.F. recruited subjects. Author Contributions |
ISSN: | 1053-8119 1095-9572 |
DOI: | 10.1016/j.neuroimage.2008.03.015 |