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The lateralized LC-NAergic system distinguishes vicarious versus direct fear in mice

Author

Listed:
  • Jong-Hyun Kim

    (Yusung-gu)

  • Da-Eun Choi

    (Yusung-gu)

  • Hee-Sup Shin

    (Yusung-gu
    University of Science and Technology)

Abstract

Fear can be induced either directly through self-experience of aversive events or vicariously by observing conspecifics experiencing such events. The locus coeruleus-norepinephrine (LC-NA) system is crucial in fear responses and cognitive processes. We investigated whether the LC-NA system differentially processes these two types of fear, direct and vicarious in male mice. The results highlighted that the right hemisphere LC→anterior cingulate cortex pathway is uniquely crucial for vicarious fear, while the two inputs to the LC—from the bed nucleus of the stria terminalis (BNST) and the central amygdala (CeA)—differentially contribute to fear processing. The BNST plays a more targeted role in vicarious fear, and the CeA has a broader influence on fear in general. This underscores the complexity and specialization within the LC-NA system for fear-processing.

Suggested Citation

  • Jong-Hyun Kim & Da-Eun Choi & Hee-Sup Shin, 2025. "The lateralized LC-NAergic system distinguishes vicarious versus direct fear in mice," Nature Communications, Nature, vol. 16(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-57701-0
    DOI: 10.1038/s41467-025-57701-0
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    References listed on IDEAS

    as
    1. Tae-Ho Lee & Steven G. Greening & Taiji Ueno & David Clewett & Allison Ponzio & Michiko Sakaki & Mara Mather, 2018. "Arousal increases neural gain via the locus coeruleus–noradrenaline system in younger adults but not in older adults," Nature Human Behaviour, Nature, vol. 2(5), pages 356-366, May.
    2. Marc T. Pisansky & Leah R. Hanson & Irving I. Gottesman & Jonathan C. Gewirtz, 2017. "Oxytocin enhances observational fear in mice," Nature Communications, Nature, vol. 8(1), pages 1-11, December.
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