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小脑刺激调节奖励处理:一个高清超直流刺激研究研究.

Xuan Wang1,2, Jin-Ting Yu3, Ling-Ling Wang4

  • 1Neuropsychology and Applied Cognitive Neuroscience Laboratory, State Key Laboratory of Cognitive Science and Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.

Cerebellum (London, England)
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概括

使用高清跨直流刺激 (HD-tDCS) 的小脑刺激在健康成年人中增强了奖励处理. 这种干预维持了快乐反应和提高了奖励灵敏度,这表明对涉及损害奖励功能的疾病有潜在的治疗益处.

关键词:
大脑小部分的大脑小部分快乐 快乐 快乐 快乐奖励奖励 奖励奖励通过骨进行直流刺激.

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科学领域:

  • 神经科学是一个神经科学.
  • 认知心理学 认知心理学
  • 精神病学是一个精神病学.

背景情况:

  • 奖励处理对于动机和决策至关重要,包括预期,努力,消费,敏感性和学习.
  • 新出现的证据表明小脑参与调节奖励处理的各个方面.
  • 功能失调的奖励处理是几种精神疾病的标志.

研究的目的:

  • 通过高清超直流刺激 (HD-tDCS) 调查小脑刺激对奖励处理的多个组成部分的影响.
  • 评估HD-tDCS是否针对右脑后小脑调节奖励预期,消费,敏感性和学习.
  • 探索小脑神经调节在奖励缺陷方面的潜在治疗应用.

主要方法:

  • 这是一项单盲,随机化,模拟控制的研究,涉及63名健康成年人.
  • 活跃或假 1.7 mA HD-tDCS 应用于右脑小后脑区 20 分钟.
  • 奖励处理使用货币激励延迟 (MID) 任务,奖励努力支出 (EEfRT-自适应) 任务和概率刺激选择任务 (PST) 评估了刺激前和后.

主要成果:

  • 活跃的HD-tDCS组在MID任务中保持了预期和消费的乐趣,而假装组显示下降.
  • 在EEfRT适应任务期间,在积极刺激组观察到提高奖励灵敏度.
  • HD-tDCS影响了PST中的奖励学习率,其影响因情绪状态而减弱.

结论:

  • 初步证据表明,针对小脑的HD-tDCS可以调节奖励处理的各个方面.
  • 大脑小神经调节表明,在患有奖励处理障碍的精神病患者群体中,有治疗干预的潜力.
  • 这项研究强调小脑在基础奖励功能的神经回路中的重要作用.