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Musical chills: why they give us thrills

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The neuroscience of musical chills. Scientists have found that the pleasurable experience of listening to music releases dopamine, a neurotransmitter in the brain important for more tangible pleasures associated with rewards such as food, drugs and sex. The new study from The Montreal Neurological Institute and Hospital – The Neuro at McGill University also reveals that even the anticipation of pleasurable music induces dopamine release [as is the case with food, drug, and sex cues]. Published in the prestigious journal Nature Neuroscience, the results suggest why music, which has no obvious survival value, is so significant across human society. The team at The Neuro measured dopamine

release in response to music that elicited “chills”, changes in skin conductance, heart rate, breathing, and temperature that were correlated with pleasurability ratings of the music. ‘Chills’ or ‘musical frisson’ is a well established marker of peak emotional responses to music. A novel combination of PET and fMRI brain imaging techniques, revealed that dopamine release is greater for pleasurable versus neutral music, and that levels of release are correlated with the extent of emotional arousal and pleasurability ratings. Dopamine is known to play a pivotal role in establishing and maintaining behavior that is biologically necessary. “These findings provide neurochemical evidence that intense emotional responses to music involve ancient reward circuitry in the brain,” says Dr. Robert Zatorre, neuroscientist at The Neuro. “To our knowledge, this is the first demonstration that an abstract reward such as music can lead to dopamine release. Abstract rewards are largely cognitive in nature, and this study paves the way for future work to examine non-tangible rewards that humans consider rewarding for complex reasons.” “Music is unique in the sense that we can measure all reward phases in real-time, as it progresses from baseline neutral to anticipation to peak pleasure all during scanning,”

says lead investigator Valorie Salimpoor, a graduate student in the Zatorre lab at The Neuro and McGill psychology program. “It is generally a great challenge to examine dopamine activity during both the anticipation and the consumption phase of a reward. Both phases are captured together online by the PET scanner, which, combined with the temporal specificity of fMRI provides us with a unique assessment of the distinct contributions of each brain region at different time points.” This innovative study, using a novel combination of imaging techniques, reveals that the anticipation and experience of listening to pleasurable music induces release of dopamine, a neurotransmitter vital for reinforcing behavior that is necessary for survival. The study also showed that two different brain circuits are involved in anticipation and experience, respectively: one linking to cognitive and motor systems, and hence prediction, the other to the limbic system, and hence the emotional part of the brain. These two phases also map onto related concepts in music, such as tension and resolution.This study was conducted at The Neuro and at the Centre for Interdisciplinary

Research in Music, Media, and Technology (CIRMMT). The research was supported by the Canadian Institutes of Health Research, the Natural Science and Engineering Research Council, and the CIRMMT.  Link to music samples used in the study. Valorie Salimpoor, Mc Gill University, Psychology: Ph.D. Candidate. I first became interested in neuropsychology while I was completing my undergraduate degree at the University of Toronto, where I worked on several  different projects involving gender differences in cognitive processing, applications of virtual reality for neuropsychological assessment, and the ability of odors to cue emotional memories.  I then pursued a masters degree in clinical psychology at York University, where I researched cognivite function in childhood disorders and executive and frontal lobe function in children with autism.  This was followed by a year of research and training at Stanford University, where I looked at neural correlates of typical and atypical mathematical cognition and repetition priming.  I am currently attending Mc Gill University, working in Dr. Robert Zatorre’s laboratory.  My current research interests

involve functional brain imaging, emotions, and autism.  More specifically, I am interested in what cues individuals use to identify emotions, and the neurochemical responses involved in the experience of intense emotion. About the Montreal Neurological Institute and Hospital. The Montreal Neurological Institute and Hospital — The Neuro, is a unique academic medical centre dedicated to neuroscience. The Neuro is a research and teaching institute of McGill University and forms the basis for the Neuroscience Mission of the McGill University Health Centre. Founded in 1934 by the renowned Dr. Wilder Penfield, The Neuro is recognized internationally for integrating research, compassionate patient care and advanced training, all key to advances in science and medicine. Neuro researchers are world leaders in cellular and molecular neuroscience, brain imaging, cognitive neuroscience and the study and treatment of epilepsy, multiple sclerosis and neuromuscular disorders. The Montreal Neurological Institute was named as one of the Seven Centres of Excellence in Budget 2007, which provided the MNI with $15 million in funding to support its research and commercialization activities related to neurological disease and neuroscience. News from: McGill international university  Montreal, Quebec, Canada    mcgill.ca

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