Brain 5-HT2A receptor binding and its neural network related to behavioral inhibition system

Kazuho Kojima, Shigeki Hirano, Yasuyuki Kimura, Chie Seki, Yoko Ikoma, Keisuke Takahata, Takehito Ito, Keita Yokokawa, Hiroki Hashimoto, Kazunori Kawamura, Ming Rong Zhang, Hiroshi Ito, Makoto Higuchi, Satoshi Kuwabara, Tetsuya Suhara, Makiko Yamada

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The tendency to avoid punishment, called behavioral inhibition system, is an essential aspect of motivational behavior. Behavioral inhibition system is related to negative affect, such as anxiety, depression and pain, but its neural basis has not yet been clarified. To clarify the association between individual variations in behavioral inhibition system and brain 5-HT2A receptor availability and specify which brain networks were involved in healthy male subjects, using [18F]altanserin positron emission tomography and resting-state functional magnetic resonance imaging. Behavioral inhibition system score negatively correlated with 5-HT2A receptor availability in anterior cingulate cortex. A statistical model indicated that the behavioral inhibition system score was associated with 5-HT2A receptor availability, which was mediated by the functional connectivity between anterior cingulate cortex and left middle frontal gyrus, both of which involved in the cognitive control of negative information processing. Individuals with high behavioral inhibition system displays low 5-HT2A receptor availability in anterior cingulate cortex and this cognitive control network links with prefrontal-cingulate integrity. These findings have implications for underlying the serotonergic basis of physiologies in aversion.

Original languageEnglish
Pages (from-to)1337-1348
Number of pages12
JournalBrain Imaging and Behavior
Volume16
Issue number3
DOIs
Publication statusPublished - 06-2022
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging
  • Neurology
  • Cognitive Neuroscience
  • Clinical Neurology
  • Cellular and Molecular Neuroscience
  • Psychiatry and Mental health
  • Behavioral Neuroscience

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