FMRI investigation of cross-modal interactions in beat perception: audition primes vision, but not vice versa.

ABSTRACT: How we measure time and integrate temporal cues from different sensory modalities are fundamental questions in neuroscience. Sensitivity to a "beat" (such as that routinely perceived in music) differs substantially between auditory and visual modalities. Here we examined beat sensitivity in each modality, and examined cross-modal influences, using functional magnetic resonance imaging (fMRI) to characterize brain activity during perception of auditory and visual rhythms. In separate fMRI sessions, participants listened to auditory sequences or watched visual sequences. The order of auditory and visual sequence presentation was counterbalanced so that cross-modal order effects could be investigated. Participants judged whether sequences were speeding up or slowing down, and the pattern of t

SUBMITTER: Grahn JA 

PROVIDER: S-EPMC3002396 | biostudies-literature | 2011 Jan

REPOSITORIES: biostudies-literature