Activation of premotor vocal areas during musical discrimination |
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Authors: | Brown Steven Martinez Michael J |
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Affiliation: | Research Imaging Center, University of Texas Health Science Center at San Antonio, USA. s_brown@sfu.ca |
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Abstract: | Two same/different discrimination tasks were performed by amateur-musician subjects in this functional magnetic resonance imaging study: Melody Discrimination and Harmony Discrimination. Both tasks led to activations not only in classic working memory areas--such as the cingulate gyrus and dorsolateral prefrontal cortex--but in a series of premotor areas involved in vocal-motor planning and production, namely the somatotopic mouth region of the primary and lateral premotor cortices, Broca's area, the supplementary motor area, and the anterior insula. A perceptual control task involving passive listening alone to monophonic melodies led to activations exclusively in temporal-lobe auditory areas. These results show that, compared to passive listening tasks, discrimination tasks elicit activation in vocal-motor planning areas. |
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Keywords: | Music Discrimination Premotor Vocalization fMRI Perception Melody Harmony |
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