maladaptive behavior

适应不良行为
  • 文章类型: Journal Article
    病理性侵略,经常在精神病患者和犯罪对象中观察到,对医疗保健和刑事司法系统构成了重大负担,需要更好的病因模型来告知预防和干预的目标。新出现的证据表明,发育过程中的不良经历会导致与适应不良行为相关的长期大脑改变,比如侵略。本审查讨论,主要基于对啮齿动物的研究,青春期慢性应激暴露导致的中脑皮层多巴胺系统的破坏是否易患成人侵略.我们的发现表明,青春期的慢性压力会诱发前额叶皮质(PFC)高多巴胺,并最终导致成年期前额叶多巴胺传递减弱。这个,反过来,破坏了PFC引导自适应的能力,通过调节中胚层多巴胺信号传导的长期集中作用选择。我们建议,特别是在青春期的动态和过渡时期,暴露于慢性压力可能导致过度的适应性变化,这可能导致成年后对适应不良侵略的脆弱性增加。我们讨论了啮齿动物的这些发现如何转化为人类。
    Pathological aggression, frequently observed in psychiatric patients and criminal subjects, poses a major burden on the health care and criminal justice system, necessitating better aetiological models to inform targets for prevention and intervention. Emerging evidence suggests that adverse experiences during development can cause long-lasting brain alterations associated with maladaptive behaviors, such as aggression. The present review discusses, mainly based on studies in rodents, whether disruption of the mesocorticolimbic dopamine system through chronic stress-exposure during adolescence predisposes to adult aggression. Our findings suggest that chronic stress in adolescence induces prefrontal cortex (PFC) hyperdopaminergia and ultimately leads to blunted prefrontal dopamine transmission in adulthood. This, in turn, disrupts the ability of the PFC to guide adaptive, long-term focused action selection by regulating mesolimbic dopamine signaling. We propose that, especially during the dynamic and transitional period of adolescence, exposure to chronic stress could lead to excessive adaptive change, which may result in an increased vulnerability to maladaptive aggression in adulthood. We discuss how these findings in rodents may translate to humans.
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