『宣教卿記』天正三年六月〜一二月記

departmental bulletin pape

球状トカマク合体立ち上げにともなう高ガイド磁場下リコネクション中の磁場揺動計測

University of Tokyo(東京大学

鎌倉幕府の御家人任官統制政策

書誌情報のみBibliographic data Onl

『宣教卿記』天正三年記紙背文書（二）

departmental bulletin pape

Strong Asymmetries in Social Relations Compared: The Mamluk Sultanate, Medieval Japan and Beyond

journal articl

Fear in action: Fear conditioning and alleviation through body movements

Summary: Fear memories enhance survival especially when the memories guide defensive movements to minimize harm. Accordingly, fear memories and body movements have tight relationships in animals: Fear memory acquisition results in adapting reactive defense movements, while training active defense movements reduces fear memory. However, evidence in humans is scarce because their movements are typically suppressed in experiments. Here, we tracked adult participants’ body motions while they underwent ecologically valid fear conditioning in a 3D virtual space. First, with body motion tracking, we revealed that distinct spatiotemporal body movement patterns emerge through fear conditioning. Second, subsequent training to actively avoid threats with naturalistic defensive actions led to a long-term (24 h) reduction of physiological and embodied conditioned responses, while extinction or vicarious training only transiently reduced the responses. Together, our results highlight the role of body movements in human fear memory and its intervention