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Dopaminergic Vulnerability in Parkinson Disease: The Cost of Humans' Habitual Performance

机译:帕金森病的多巴胺能脆弱性:人类习惯性能的成本

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Humans can simultaneously combine automatic/habitual and voluntary/goal-directed aspects of behavioral control. Habitual routines permit us to perform well practiced task-components with minimal or no voluntary attention. Evidence from animal and human investigations indicates that dopaminergic neurons in lateral substantia nigra, which innervate the sensorimotor striatum, are engaged during the acquisition and performance of automatized skills and habits. Typically, in Parkinson disease (PD), there is a differential loss of dopamine, which occurs earliest and most severely in the caudal sensorimotor striatum, a subdivision of the striatum implicated in habitual control. We suggest that frequent reliance on habitual performance may be a critical functional stressor, which, when combined with other more general risk factors, could explain the selective neuro-degeneration of the nigrostriatal motor projection in PD.
机译:人类可以同时结合自动/习惯和自愿/目标的行为控制的方面。 习惯性惯例允许我们以最小或没有自愿关注来表现好的任务组件。 来自动物和人类调查的证据表明,在自动化技能和习惯的获取和表现期间,侧向基本纹理中的侧面真主NIGRA中的多巴胺能神经元在自动化技能和习惯的收购和习惯期间进行。 通常,在帕金森病(Pd)中,多巴胺存在差异损失,其在尾部感觉体纹状体中最早且最严重地发生,这是统治性控制中涉及的纹状体的细分。 我们建议频繁依赖惯常性能可能是关键的功能压力源,当与其他更普遍的危险因素相结合时,可以解释PD中的纽格斯特拉特电机投射的选择性神经退化。

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