"看不到任何东西":在发育期前视视觉症中,面部识别的隐性眼部运动指数在发育期前视觉症中
Aida Rahavi1, Manuela Malaspina1, Andrea Albonico1
1Human Vision and Eye Movement Laboratory, Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, Canada.
Cognitive neuropsychology
|August 23, 2023
概括
患有发育性前视神经症的个体表现出减少了看脸刺激的前位置的倾向,即使它不再可见. 这种隐含的凝视行为与面部感知中的明确识别准确性平行.
科学领域:
- 认知神经科学 认知神经科学
- 神经科学是一个神经科学.
- 心理学 心理学 心理学
背景情况:
- 过分的注意力往往会停留在视觉刺激的最后一个已知的位置上,即使它消失了.
- 发育前视 (developmental prosopagnosia,简称DP) 是一种表现为无法识别熟悉面孔的疾病.
研究的目的:
- 为了调查是否隐含的凝视行为对先前看到的脸部的位置是保留或减少的个人与发育prosopagnosia.
- 探索在DP中显式人脸识别准确度和隐式凝视模式之间的关系.
主要方法:
- 参与者从视频片段中学习了特定的面孔.
- 在学习之后,参与者观看了面孔的剪辑,然后用空盒子取代.
- 参与者指出了编辑中学习的面孔的存在,并跟踪了他们的眼睛运动.
主要成果:
- 对照对象表现出明显的倾向,看着学习面部出现的位置,无论试验的准确性 (击中或错过),对击中试验的影响更大.
- 患有发育前的受试者表现出对已学习面部位置的目光效应减少,但仍然存在.
- 在prosopagnosic受试者中隐含的凝视效应在命中试验中也比失误试验更明显.
结论:
- 显式的面部识别精度和隐式的"看不到任何东西"效果似乎是并行的过程.
- 面部识别背后的神经活动的强度影响了明确的准确性和隐含的凝视行为.
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