“Brain”, “Body”, and “Behavioral Change”

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  • Sekiguchi Atsushi
    Department of Behavioral Medicine, National Institute of Mental Health, National Center of Neurology and Psychiatry (NCNP)
  • Sugawara Ayako
    Department of Behavioral Medicine, National Institute of Mental Health, National Center of Neurology and Psychiatry (NCNP)
  • Katsunuma Ruri
    Department of Behavioral Medicine, National Institute of Mental Health, National Center of Neurology and Psychiatry (NCNP)
  • Terasawa Yuri
    Department of Behavioral Medicine, National Institute of Mental Health, National Center of Neurology and Psychiatry (NCNP) Department of Psychology, Keio University Faculty of Letters

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Other Title
  • 「脳」と「身体」と「行動変容」
  • 「 ノウ 」 ト 「 シンタイ 」 ト 「 コウドウ ヘンヨウ 」

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Abstract

<p>In recent years, “interoception” has attracted attention as a cognitive science background for psychosomatic correlations. Interoception refers to the sensation of physiological states inside the body, such as breathing, heartbeat, and movement of the intestinal tract, and is considered a necessary function for maintaining homeostasis. In addition, interoceptive dysfunction has been observed in various stress-related disorders (e.g., PTSD, depression, anxiety disorders, psychosomatic disorders, and eating disorders).</p><p>Interoceptive dysfunction has been widely studied in neuroscience and psychology. Interoceptive signals are believed to be concentrated in the insular cortex of the brain and projected to the amygdala, which is responsible for various emotional experiences. In addition, Damasio et al. showed that people with low interoceptive sensation are highly likely to engage in high-risk behaviors. These findings suggest that behavioral change is influenced by internal receptive sensations, which can be considered a factor that defines behavior. In our study, we observed a decrease in anxiety, a change in behavior, and a change in brain circuitry in the insular cortex when implementing a cognitive training task that directly strengthened the internal receptive sense.</p><p>In this paper, we introduce the findings on abnormalities in interoceptive sensation as a model of psychosomatic correlations, and present the results of our intervention experiment that examined the relationship between interoceptive sensation and behavioral change.</p>

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