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Nov 1

Dr. Iki (JSPS PD) received the Best Oral Presentation Award at the 84th Annual Meeting of the Japanese Society for Animal Psychology


Dr. Iki (JSPS PD) received the Best Oral Presentation Award at the 84th Annual Meeting of the Japanese Society for Animal Psychology.


“Does self-scratching predict pessimistic cognitive biases in Japanese macaques? Revisiting the James-Lange theory”

Sakumi Iki, Ikuma Adachi (Kyoto University)


Comments from Dr. Iki

“The James-Lange theory, which proposes that peripheral bodily responses precede central cognitive responses, is famously summarized by the phrase, “We do not cry because we are sad; we are sad because we cry.” In this study, we aimed to test this theory in Japanese macaques by examining the relationship between self-scratching behavior—a bodily response associated with negative emotions such as anxiety—and pessimistic judgment bias—a cognitive tendency to anticipate undesirable outcomes in uncertain situations. I am deeply honored to receive this prestigious award and would like to express my sincere gratitude to the researchers, staff, and students at the Center for the Evolutionary Origins of Human Behavior for their invaluable support.”




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