Cerebral Cortex Advance Access originally published online on February 24, 2009
Cerebral Cortex 2009 19(11):2579-2594; doi:10.1093/cercor/bhp008
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The Neural Architecture of Music-Evoked Autobiographical Memories
Department of Psychology, Center for Mind and Brain, University of California, Davis, CA 95618, USA
Address Correspondence to Petr Janata, Department of Psychology, Center for Mind and Brain, 267 Cousteau Place, Davis, CA 95618, USA. Email: pjanata{at}ucdavis.edu.
The medial prefrontal cortex (MPFC) is regarded as a region of the brain that supports self-referential processes, including the integration of sensory information with self-knowledge and the retrieval of autobiographical information. I used functional magnetic resonance imaging and a novel procedure for eliciting autobiographical memories with excerpts of popular music dating to one's extended childhood to test the hypothesis that music and autobiographical memories are integrated in the MPFC. Dorsal regions of the MPFC (Brodmann area 8/9) were shown to respond parametrically to the degree of autobiographical salience experienced over the course of individual 30 s excerpts. Moreover, the dorsal MPFC also responded on a second, faster timescale corresponding to the signature movements of the musical excerpts through tonal space. These results suggest that the dorsal MPFC associates music and memories when we experience emotionally salient episodic memories that are triggered by familiar songs from our personal past. MPFC acted in concert with lateral prefrontal and posterior cortices both in terms of tonality tracking and overall responsiveness to familiar and autobiographically salient songs. These findings extend the results of previous autobiographical memory research by demonstrating the spontaneous activation of an autobiographical memory network in a naturalistic task with low retrieval demands.
Key Words: emotion episodic memory fMRI medial prefrontal cortex tonality