Sensory-processing sensitivity as related to psychosomatic health in healthy Japanese people

[Speaker] Takahashi, Toru:1
[Co-author] Haitani, Tomosumi:1, Sugiyama, Fukiko:1, Kawashima, Issaku:1, Usui, Kaori:1, Honda, Hikari:1, Kumano, Hiroaki:2
1:Graduate School of Human Sciences, Waseda University (Japan), 2:Faculty of Human Sciences, Waseda University (Japan)

Sensory-processing sensitivity (SPS) relates to sensitivity to external and internal stimuli and the tendency to be easily over-aroused. Yet there is little research on the SPS in Japan. We surveyed the relationships between SPS and psychosomatic health (trait anxiety, psychosomatic symptoms, mental health, and openness to experience) in Japan. The results showed that low sensory threshold and ease of excitation, sub-factors of SPS, significantly related to trait anxiety (each r = .51, .62), psychosomatic symptoms (r = .24, .28), and mental health (r = -.26, -.23). Aesthetic sensitivity, is a sub-factor of SPS, and significantly related to trait anxiety (r = -.28), mental health (r = .35), and openness to experience (r = .51) (all padj < .0001, N = 582, Holm's method). These results were roughly similar to those in western countries. We argue that SPS is also useful when considering psychosomatic health in Japan.
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