发育性前的感知异质性是连续的,而不是分类的
Joseph DeGutis1, Leah Kirsch1, Travis C Evans2
1Boston Attention and Learning Laboratory, VA Boston Healthcare System, Boston, MA, USA; Department of Psychiatry, Harvard Medical School, Boston, MA, USA.
概括
发育性前 (DP) 显示持续的感知差异,而不是离散的子组. 这项研究发现,在所有面部感知指标中,表现各不相同,支持DP患者的一系列缺陷.
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
- 人类的感知 人类的感知
背景情况:
- 发育性前列症 (DP) 的特点是显著的感知异质性,但这些缺陷的基本结构 (离散子组与连续变化) 仍在争论中.
- 以前的研究建议基于整体与特征处理的离散DP子组,但使用了小样本和单一任务.
- 对DP异质性的全面理解对于准确的诊断和有针对性的干预至关重要.
研究的目的:
- 为了全面地描述发育性prosopagnosia (DP) 的感知异质性.
- 调查DP赤字是否表现为离散的子组或持续的减值谱.
- 在多个面部感知任务中评估子组发现的概括性.
主要方法:
- 给大样本的109个PD个体和134个对照进行了广泛的面部感知电池.
- 包括面部匹配 (CFPT,Benton,相同/不同),整体处理 (部分整体任务) 和特征处理 (乔治斯任务,部分整体部分试验) 的验证措施.
- 采用对任务绩效数据的层次聚类和k-means分析.
主要成果:
- 与对照组相比,DP参与者显示,在面部匹配措施中,绩效分布转向减弱.
- 复制先前方法的集群分析根据特定任务 (例如,CFPT反转效应) 确定了潜在的子组,但这些并没有概括.
- 使用充满电池的集群分析显示,在所有面部感知测量中,表现的连续性,没有明显的子组出现.
结论:
- 这些发现支持了在发育前视觉症 (DP) 中对感知异质性的持续解释.
- 在DP中,表现缺陷似乎在面部知觉的各个方面都存在差异,而不是分为不同的类别.
- 这项研究强调了使用全面评估电池来了解DP频谱的重要性.
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