Integrated cardio-behavioural defensive states

Integrated cardio-behavioural defensive states
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综合心脏行为防御状态

DOI:
10.1101/2022.09.22.509009
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发表时间:
--
期刊:
bioRxiv
影响因子:
--
通讯作者:
Tovote P
Tovote P
中科院分区:
--
文献类型:
--
作者:
Signoret-Genest J;Schukraft N;Reis SL;Segebarth D;Tovote P

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恐惧和焦虑是大脑的状态,它们进化成调解对威胁的防御反应。虽然很明显,防御反应包括多种相互作用的行为,自主神经和内分泌调节,其综合性质知之甚少。特别是,威胁已与各种心脏变化,但他们的相关性的综合防御反应是一个明确的共识失踪。我们在这里定义了与特定行为和心率动态相关的快速微观状态,它们都受到长期宏观状态的影响,并反映了依赖于上下文的威胁水平。此外,我们证明了最常用的防御行为反应之一,冻结测量不动,是一个综合的心脏行为的微观介导的特定中脑电路元件的一部分。我们的工作提出了一个系统整合心脏和行为读数的框架,为更好地理解复杂的神经防御状态及其相关的系统功能奠定了基础。
Fear and anxiety are brain states that evolved to mediate defensive responses to threat. While it is clear that the defense reaction includes multiple interacting behavioural, autonomic and endocrine adjustments, their integrative nature is poorly understood. In particular, threat has been associated with various cardiac changes, yet a clear consensus on their relevance for the integrated defense reaction is missing. We here define rapid microstates associated with specific behaviours and heart rate dynamics, both affected by long-lasting macrostates and reflecting context-dependent threat levels. In addition, we demonstrate that one of the most commonly used defensive behavioural responses, freezing measured by immobility, is part of an integrated cardio-behavioural microstate mediated by specific midbrain circuit elements. Our work puts forth a framework for systematic integration of cardiac and behavioural readouts that presents the basis for a better understanding of complex neural defensive states and their associated systemic functions.
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