Stegring och musikalisk klimax i olika delar av hjärnan

Publicerat , ,

Olika delar av hjärnan är aktiv under förväntan och upplevelse av musikalisk känslomässig klimax. (Av Robert Zatrorre och medarbetare, 2011.)

Titel: Anatomically distinct dopamine release during anticipation and experience of peak emotion to music

Författare: Salimpoor, Valorie N; Benovoy, Mitchel; Larcher, Kevin; Dagher, Alain; Zatorre, Robert J

Publikation: Nat Neurosci

Volym: 14

Nummer: 2

Sidor: 257-262

Publicerad: 2011

Sammandrag: Music, an abstract stimulus, can arouse feelings of euphoria and craving, similar to tangible rewards that involve the striatal dopaminergic system. Using the neurochemical specificity of [11C]raclopride positron emission tomography scanning, combined with psychophysiological measures of autonomic nervous system activity, we found endogenous dopamine release in the striatum at peak emotional arousal during music listening. To examine the time course of dopamine release, we used functional magnetic resonance imaging with the same stimuli and listeners, and found a functional dissociation: the caudate was more involved during the anticipation and the nucleus accumbens was more involved during the experience of peak emotional responses to music. These results indicate that intense pleasure in response to music can lead to dopamine release in the striatal system. Notably, the anticipation of an abstract reward can result in dopamine release in an anatomical pathway distinct from that associated with the peak pleasure itself. Our results help to explain why music is of such high value across all human societies.

Länk till original: http://dx.doi.org/10.1038/nn.2726

Kategori: Hjärnavbildning Hur hjärnan hanterar ... Musiklyssnande

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