Cerebral activations related to audition-driven performance imagery in professional musicians.

摘要: Functional Magnetic Resonance Imaging (fMRI) was used to study the activation of cerebral motor networks during auditory perception music in professional keyboard musicians (n = 12). The paradigm implied that subjects listened two-part polyphonic music, while either critically appraising performance or imagining they were performing themselves. Two-part audition and bimanual imagery circumvented a hemisphere bias associated with convention playing melody right hand. Both tasks activated ventral premotor cortices, bilaterally, anterior parietal cortex, when contrasted 12 musically unskilled controls. Although left increased (compared judgment), bilateral dorsal posterior-superior activations quite unique imagery. latter suggests not only recruited their manual repertoire but also performed spatial transformation from vertically perceived pitch axis (high low sound) horizontal keyboard. Imagery-specific controls seen parietal-premotor supplementary cortices. these less strong compared musicians, this overlapping distribution indicated recruitment general ‘mirror-neuron’ circuitry. These two levels sensori-motor transformations point towards common principles by which brain organizes audition-driven visually guided task performance.