中额冲突theta和状P300与DSM外部化障碍的潜在因素有关
Phoebe S-H Neo1, Neil McNaughton1, Martin Sellbom1
1Department of Psychology, University of Otago, Dunedin, New Zealand.
低的神经行为抑制系统 (BIS) 灵敏度和降低的P300与外部化障碍有关. 这些发现表明,在外部化频谱中存在共同的神经机制,因此需要进一步调查.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 行为科学 行为科学
背景情况:
- 精神疾病存在于一个频谱上,症状不断变化.
- 行为和大脑活动的维度测量为跨疾病的共同生物机制提供了洞察力.
研究的目的:
- 调查强化灵敏性理论 (RST) 系统的神经测量是否解释个人差异在一般外部化因素中.
- 为了比较RST系统的解释能力与减少的P300,一个已知的外部化指标.
主要方法:
- 评估了206名DSM-5外部化障碍 (EXT) 的参与者.
- 使用脑电图测量了行为激活系统 (BAS),战斗/逃跑/结系统和行为抑制系统 (BIS) 的神经敏感性.
- 从金条-和停止信号任务中提取了P300的措施.
主要成果:
- 低的神经BIS灵敏度和低P300与潜在的外部化因素有显著的关联.
- 神经BAS (多巴胺) 敏感性没有显示与外部化特征的关联.
- 49%的样本符合至少一个EXT的标准.
结论:
- 低BIS灵敏度和P300似乎是外化频谱障碍背后的常见神经机制.
- 研究结果支持BIS和P300在心理病理外化方面的作用.
- RST系统的可复制性和差异性参与需要进一步研究更大的样本.
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