Gandhi Wiebke, Morrison India, Schweinhardt Petra
Faculty of Dentistry, McGill University, Montreal, QC, Canada.
The Alan Edwards Center for Research on Pain, McGill University, Montreal, QC, Canada.
Front Psychiatry. 2017 Jun 12;8:103. doi: 10.3389/fpsyt.2017.00103. eCollection 2017.
Coping with pain is a complex phenomenon encompassing a variety of behavioral responses and a large network of underlying neural circuits. Whether pain coping is adaptive or maladaptive depends on the type of pain (e.g., escapable or inescapable), personal factors (e.g., individual experiences with coping strategies in the past), and situational circumstances. Keeping these factors in mind, costs and benefits of different strategies have to be appraised and will guide behavioral decisions in the face of pain. In this review we present pain coping as an unconscious decision-making process during which accurately evaluated costs and benefits lead to adaptive pain coping behavior. We emphasize the importance of passive coping as an adaptive strategy when dealing with ongoing pain and thus go beyond the common view of passivity as a default state of helplessness. In combination with passive pain coping, we highlight the role of the reward system in reestablishing affective homeostasis and discuss existing evidence on a behavioral and neural level. We further present neural circuits involved in the decision-making process of pain coping when circumstances are ambiguous and, therefore, costs and benefits are difficult to anticipate. Finally, we address the wider implications of this topic by discussing its relevance for chronic pain patients.
应对疼痛是一个复杂的现象,它包含了各种行为反应以及一个庞大的潜在神经回路网络。疼痛应对是适应性的还是适应不良的,取决于疼痛的类型(例如,可逃避的或不可逃避的)、个人因素(例如,过去应对策略的个人经历)以及情境情况。牢记这些因素,必须评估不同策略的成本和收益,这将指导面对疼痛时的行为决策。在本综述中,我们将疼痛应对呈现为一个无意识的决策过程,在此过程中,准确评估的成本和收益会导致适应性的疼痛应对行为。我们强调被动应对作为应对持续性疼痛的一种适应性策略的重要性,因此超越了将被动视为无助默认状态的普遍观点。结合被动疼痛应对,我们突出奖励系统在重新建立情感内稳态中的作用,并在行为和神经层面讨论现有证据。当情况不明确且因此成本和收益难以预测时,我们还展示了参与疼痛应对决策过程的神经回路。最后,我们通过讨论该主题与慢性疼痛患者的相关性来阐述这一主题的更广泛影响。