Vocal identification of speaker and emotion activates differerent brain regions

Authors:
  • KMKoichi Mori
    Koichi Mori
  • SKShigeru Kiritani
    Shigeru Kiritani
  • RKRyuta Kawashima
    Ryuta Kawashima
  • MSMotoaki Sugiura
    Motoaki Sugiura
  • HFHiroshi Fukuda
    Hiroshi Fukuda
  • KIKengo Itoh
    Kengo Itoh
  • TKTakashi Kato
    Takashi Kato
  • ANAkinori Nakamura
    Akinori Nakamura
  • KHKentaro Hatano
    Kentaro Hatano
  • SKShozo Kojima
    Shozo Kojima
  • KNKatsuki Nakamura
    Katsuki Nakamura
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Abstract
Regional cerebral blood flow was measured in six healthy volunteers by positron emission tomography during identification of speaker and emotion from spoken words. The speaker identification task activated several audio-visual multimodal areas, particularly the temporal poles in both hemispheres, which may be involved in connecting vocal attributes with the visual representations of speakers. The emotion identification task activated regions in the cerebellum and the frontal lobe, suggesting a functional relationship between those regions involved in emotion. The results suggest that different anatomical structures contribute to the vocal identification of speaker and emotion.

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