Balancing risk-return decisions by manipulating the mesofrontal circuits in primates

• 成果类型: Article
• 署名作者: Sasaki, Ryo; Ohta, Yasumi; Onoe, Hirotaka; Yamaguchi, Reona; Miyamoto, Takeshi; Tokuda, Takashi; Tamaki, Yuki; Isa, Kaoru; Takahashi, Jun; Kobayashi, Kenta; Ohta, Jun; Isa, Tadashi
• 署名单位: Kyoto University; Nara Institute of Science & Technology; Kyoto University; Kyoto University; Japan Society for the Promotion of Science; Institute of Science Tokyo; Tokyo Institute of Technology; Kyoto University; National Institutes of Natural Sciences (NINS) - Japan; National Institute for Physiological Sciences (NIPS)
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-9630
• DOI: 10.1126/science.adj6645
• 发表日期: 2024-01-05
• 页码: 55-61
• 关键词: ventral tegmental area; probability distortion; stimulation; distinct; damage; reinforcement; impairments; mechanisms; prediction; neurons

摘要

Decision-making is always coupled with some level of risk, with more pathological forms of risk-taking decisions manifesting as gambling disorders. In macaque monkeys trained in a high risk-high return (HH) versus low risk-low return (LL) choice task, we found that the reversible pharmacological inactivation of ventral Brodmann area 6 (area 6V) impaired the risk dependency of decision-making. Selective optogenetic activation of the mesofrontal pathway from the ventral tegmental area (VTA) to the ventral aspect of 6V resulted in stronger preference for HH, whereas activation of the pathway from the VTA to the dorsal aspect of 6V led to LL preference. Finally, computational decoding captured the modulations of behavioral preference. Our results suggest that VTA inputs to area 6V determine the decision balance between HH and LL.