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在自闭症患者的视觉统计学习过程中提取和概括类别级信息
Owen Parsons1, Simon Baron-Cohen1
1Autism Research Centre, Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom.
PloS one
|June 2, 2023
概括
个人可以从特定的例子将视觉统计学习概括为类似的概念. 与对照人群相比,自闭症患者的视觉统计学习减少,尽管语义学习的差异没有确定.
科学领域:
- 认知心理学 认知心理学
- 神经发育障碍 神经发育障碍
- 感知 感知 感知 感知
背景情况:
- 研究视觉统计学习 (VSL) 从特定示例到语义上相似的示例的泛化.
- 检查自闭症和非自闭症成年人之间VSL表现的差异.
- 评估在语义层面上呈现顺序信息时,是否会出现群体差异.
研究的目的:
- 要确定在VSL任务中提取的统计信息是否可以将其概括到语义相关的语境中.
- 为了比较自闭症个体与神经类型对照的VSL表现.
- 为了确定群体之间的性能差异是否特定于语义层次的顺序信息处理.
主要方法:
- 125名成年参与者 (61名自闭症,64名非自闭症对照) 完成了一项视觉统计学习任务,并完成了一个覆盖任务.
- 在串行图像序列呈现后,使用两种替代性强制选择范式评估隐性回忆.
- 该任务涉及以低特征为基础或高语义为基础的统计规律性评估.
主要成果:
- 参与者展示了从特定示例到语义上相似的示例中概括统计信息的能力.
- 与对照组相比,自闭症组观察到视觉统计学学习的总体显著减少.
- 无法确定是否有特定于语义信息学习的群体差异.
结论:
- 结果支持在语义上提取和概括统计信息的能力.
- 在自闭症参与者中,与对照者相比,在回忆表现中发现了温和而统计显著的下降.
- 需要进一步的研究来澄清自闭症谱系障碍中语义统计学习中的群体差异.
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