Investigating the type and strength of emotion with music: An fMRI study

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  • Okuya Teruhisa
    Eco Solutions Company, Engineering Division, Panasonic Corporation Doshisha University, Graduate School of Science and Engineering
  • Date Toshihiko
    AVC Networks Company, Organization Staff R&D Division, Panasonic Corporation
  • Fukino Miwa
    Advanced Research Division, Panasonic Corporation
  • Iwakawa Mikio
    Eco Solutions Company, Engineering Division, Panasonic Corporation
  • Sasabe Kohji
    Eco Solutions Company, Engineering Division, Panasonic Corporation
  • Nagao Kumi
    Doshisha University, Life and Medical Sciences
  • Moriizumi Yuki
    Doshisha University, Graduate School of Science and Engineering
  • Akiyama Iwaki
    Doshisha University, Graduate School of Science and Engineering
  • Watanabe Yoshiaki
    Doshisha University, Graduate School of Science and Engineering

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In this paper, we used blood oxygenation level-dependent (BOLD) signals and emotion ratings to investigate the relationship between the type and strength of emotion induced by musical stimuli. Our goal was to establish a quantitative emotional evaluation method that uses brain activity. In Experiment 1, 26 participants rated 60 pieces of music using a semantic differential scale and 20 pieces were chosen on the basis of Russell's circumplex model. In Experiment 2, we investigated the relationships between the type and strength of emotion and brain activity by asking 20 participants to listen to the pieces of music in a Magnetic Resonance Imaging (MRI) scanner. We identified brain regions for which the BOLD signal intensity was correlated with the ratings of emotions. As a result, the ``Happy'' rating was mainly correlated with activity in the superior temporal gyrus. The ``Sad'' rating was correlated with activity in the left thalamus. The ``Fear'' rating was mainly correlated with activity in the parahippocampal gyrus, insular cortex, and right amygdala. By focusing on activity in these brain regions, it may be possible to quantify the type and strength of emotions evoked by music.

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