间隔计时作为一个计算途径 从早期生活中的逆境到情绪障碍
Nora C Harhen1, Aaron M Bornstein1,2
1Department of Cognitive Sciences, University of California, Irvine.
Topics in cognitive science
|October 12, 2023
概括
生命早期的逆境,特别是时间的不可预测性,可以通过改变时间期望和奖励处理,导致无情感. 这种机制将早期经历与精神健康状况 (如抑郁和焦虑) 联系起来.
科学领域:
- 神经科学是一个神经科学.
- 心理学 心理学 心理学
- 计算精神病学是一种计算精神病学.
背景情况:
- 早期不良生活经历与长期的心理健康问题有关.
- 连接早期逆境与精神疾病的确切机制尚不清楚.
- 抑郁症和焦虑症的核心症状 - - 无情感是一种跨诊断特征,通常与早期的逆境有关.
研究的目的:
- 通过使用间隔时间原则,提出一个正式的模型,将生命早期的逆境与无情联系起来.
- 研究早期发育中的时间不可预测性如何塑造时间表征和奖励处理.
- 探索时间不可预测性和低奖励可用性之间的相互作用,以塑造心理健康现象型.
主要方法:
- 利用间隔时间的原则模型来正式化早期环境不可预测性的影响.
- 模拟了时间期望的发展及其对奖励预期和协会学习的影响.
- 研究了在引入不同环境稳定性和奖励可用性的模拟剂中时间不可预测性的影响.
主要成果:
- 早期的时间不可预测性导致更广泛,更不精确的时间预期.
- 这些改变的时间期望减少了奖励预期和缓慢的关联学习.
- 代理人发展出一种消极偏见,更多地响应奖励遗漏而不是收到,特别是在奖励可用性高的环境中.
结论:
- 基于对时间不可预测性的统计优化适应的单一机制可以解释安赫多尼亚的关键特征.
- 该模型为了解早期逆境如何导致情绪障碍提供了一个框架.
- 这些发现突出了不同形式的逆境之间的复杂相互作用及其对心理健康结果的影响.
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