Regional brain cerebral glucose metabolism and temperament: A positron emission tomography study

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• 作者：Yuko Hakamata ; Mikio Iwase ; Hiroshi Iwata ; Toshiki Kobayashi ; Tsuneo Tamaki ; Masami Nishio ; Katsuhiko Kawahara ; Hiroshi Matsuda ; Norio Ozaki ; Shuji Honjo and Toshiya Inada
• 关键词：Positron emission tomography (PET) ; Fluorodeoxyglucose ; Temperament and Character Inventory (TCI) ; Temperament ; Personality
• 刊名：Neuroscience Letters
• 出版年：2006
• 出版时间：20 March 2006
• 年：2006
• 卷：396
• 期：1
• 页码：33-37
• 全文大小：1802 K

文摘

Personality, and in particular temperament, is thought to have a biological basis. In the present study, the relationships between regional brain glucose metabolism and temperament have been investigated. Regional brain glucose metabolism was measured using [¹⁸F] fluorodeoxyglucose positron emission tomography in 31 healthy subjects. Temperament was assessed using the Temperament and Character Inventory. Temperament dimensions were observed to be significantly correlated with specific brain regions. In particular, novelty seeking was significantly correlated with the superior temporal gyrus, inferior parietal lobule, and the precuneus, which have been reported to be related with impulsiveness, while reward dependence was significantly correlated with the caudate head, which has been shown to be associated with reward processing. The various aspects of temperament may have biological bases in the specific brain regions. The accumulation of results from studies of this kind should provide further evidence connecting personality traits with their biological bases.