title: The gray matter volume of the amygdala is correlated with the perception of melodic intervals: a voxel-based morphometry study.
abstract: Music is not simply a series of organized pitches, rhythms, and timbres, it is capable of evoking emotions. In the present study, voxel-based morphometry (VBM) was employed to explore the neural basis that may link music to emotion. To do this, we identified the neuroanatomical correlates of the ability to extract pitch interval size in a music segment (i.e., interval perception) in a large population of healthy young adults (N = 264). Behaviorally, we found that interval perception was correlated with daily emotional experiences, indicating the intrinsic link between music and emotion. Neurally, and as expected, we found that interval perception was positively correlated with the gray matter volume (GMV) of the bilateral temporal cortex. More important, a larger GMV of the bilateral amygdala was associated with better interval perception, suggesting that the amygdala, which is the neural substrate of emotional processing, is also involved in music processing. In sum, our study provides one of first neuroanatomical evidence on the association between the amygdala and music, which contributes to our understanding of exactly how music evokes emotional responses.
authors.affiliation: Department of Psychology, Renmin University of China, Beijing, China.
authors.forename: Xueting
authors.initials: X
authors.lastname: Li
authors.affiliation: Department of Personnel Management and Work and Organizational Psychology, Ghent University, Ghent, Belgium; Institute for Management Research, Radboud University Nijmegen, Nijmegen, The Netherlands.
authors.forename: Alain
authors.initials: A
authors.lastname: De Beuckelaer
authors.affiliation: School of Psychology, Beijing Normal University, Beijing, China.
authors.forename: Jiahui
authors.initials: J
authors.lastname: Guo
authors.affiliation: School of Psychology, Beijing Normal University, Beijing, China.
authors.forename: Feilong
authors.initials: F
authors.lastname: Ma
authors.affiliation: School of Psychology, Beijing Normal University, Beijing, China.
authors.forename: Miao
authors.initials: M
authors.lastname: Xu
authors.affiliation: School of Psychology, Beijing Normal University, Beijing, China; Center for Collaboration and Innovation in Brain and Learning Sciences, Beijing Normal University, Beijing, China.
authors.forename: Jia
authors.initials: J
authors.lastname: Liu
mesh_terms: D000161:Acoustic Stimulation; D000328:Adult; D000679:Amygdala / Q000033:anatomy & histology*; D001307:Auditory Perception / Q000502:physiology*; D004644:Emotions; D005260:Female; D066128:Gray Matter / Q000033:anatomy & histology*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging; D008297:Male; D009146:Music / Q000523:psychology; D009929:Organ Size / Q000502:physiology; D010507:Periodicity; D055815:Young Adult