Handedness: Dependent asymmetrical location of the human primary gustatory area, area G

Masahito Wakita, Tatu Kobayakawa, Sachiko Saito, Nobuyuki Sakai, Yasuhiro Hiai, Toshinori Hirai, Yasuyuki Yamashita, Kayoko Hasegawa, Kaoru Matsunaga, Hisashi Ogawa

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

In magnetoencephalogram studies, the primary gustatory area, area G, is not always seen in the same coronal plane in both hemispheres. We investigated possible asymmetry in right-handed and left-handed individuals by functional MRI. Group analyses revealed a significant difference in the antero-posterior coordinates of the area G between the right and left hemispheres in the right-handed group, but not in the left-handed group, indicating significant morphometric asymmetry in the former group and ambiguous morphometric asymmetry in the latter. However, in left-handed individuals with motor speech areas detected in the right hemisphere, area G was more posteriorly located in the right than in the left hemisphere. These findings suggest that the motor speech area contributes to the asymmetric location of area G.

Original languageEnglish
Pages (from-to)450-455
Number of pages6
JournalNeuroReport
Volume20
Issue number4
DOIs
Publication statusPublished - 2009 Mar 4
Externally publishedYes

Keywords

  • Area G
  • Dominant hand
  • Functional MRI
  • Hemispheric asymmetry
  • Taste

ASJC Scopus subject areas

  • Neuroscience(all)

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