Journal
NEURON
Volume 34, Issue 1, Pages 139-148Publisher
CELL PRESS
DOI: 10.1016/S0896-6273(02)00637-2
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Funding
- NIDCD NIH HHS [R01 DC 03489] Funding Source: Medline
- NIMH NIH HHS [F31 MH 12598, F31 MH012598] Funding Source: Medline
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We assessed the human brain network for sound-motion processing using the same virtual stimulus in three independent functional imaging experiments. All experiments show a bilateral posterior network of activation, including planum temporale (PT) and parieto-temporal operculum (PTO). This was demonstrated in contrasts between sound movement and two control conditions: externalized stationary stimuli (in the midline or to the side of the head) and midline sounds within the head with similar spectro-temporal structure. We suggest specific computational mechanisms in PT for disambiguation of the intrinsic spectro-temporal features of a sound and the spectro-temporal effect of sound movement. The results support the existence of a posteriorly directed temporo-parietal pathway for obligatory perceptual processing of sound-source motion.
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