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首页> 外文期刊>Journal of vision >Varied behavioral profiles in children with developmental prosopagnosia reveal dissociations in the developing face processing system
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Varied behavioral profiles in children with developmental prosopagnosia reveal dissociations in the developing face processing system

机译：发育不全儿童的各种行为特征揭示了发育中的面部处理系统的分离

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Developmental prosopagnosia (DP) is a neurodevelopmental condition characterized by severe face recognition problems that result from a failure to develop the visual mechanisms necessary for normal face processing. Although much work has been done to study DP in adults, little has been done to study it in children. The study of DP in children makes it possible to address unique questions regarding the organization and development of the face processing system. Specifically, by looking at the performance of children with DP on a variety of face and object processing tasks, cognitive dissociations can be identified that can speak to the functional organization of the face processing system. Looking at patterns of face processing impairments in the developing system can also provide information about when the mechanisms underlying normal face processing differentiate from each other during development. We used a battery of tests of face and object perception to document the behavioral profiles of children with suspected face recognition difficulties. Children performed tests of face memory, face perception, face detection, expression recognition, and gender discrimination, as well as object recognition tasks matched to the face tasks. General intelligence, acuity, and autistic tendencies were also assessed. Distinct phenotypes of DP emerged: Some children presented impairments on some, but not all face tasks, and performed normally on object tasks, suggesting face-specific deficits restricted to a subset face-processing abilities. Other children presented more widespread face processing deficits, performing poorly on all face memory and perception tests, yet normally on object tasks, indicating severe face-specific processing impairments. Another subset of children presented severe face and object processing deficits, indicating more general high-level visual impairments. These results provide evidence for dissociations of face processing abilities early in life and provide a basis for classifying different phenotypes of DP the developing face processing system.
机译：发育不全症（DP）是一种神经发育疾病，其特征是严重的面部识别问题，这是由于无法开发正常面部处理所必需的视觉机制而导致的。尽管为研究成人的DP做了大量工作，但对儿童进行DP的研究却很少。对儿童中DP的研究可以解决有关面部处理系统的组织和开发的独特问题。具体而言，通过观察患有DP的儿童在各种面部和对象处理任务上的表现，可以识别出可以与面部处理系统的功能组织对话的认知分离。观察开发系统中的面部处理障碍的模式还可以提供有关在开发过程中正常面部处理的基础机制何时相互区分的信息。我们使用了一系列的面部和物体感知测试，以记录可疑面部识别困难儿童的行为特征。孩子们进行了面部记忆，面部感知，面部检测，表情识别和性别歧视的测试，以及与面部任务相匹配的物体识别任务。还评估了一般智力，敏锐度和自闭症倾向。出现了明显的DP表型：一些孩子在一些而非全部面部任务上表现出障碍，并且在对象任务上表现正常，这表明特定于面部的缺陷仅限于一部分面部处理能力。其他孩子表现出更广泛的面部加工缺陷，在所有面部记忆和知觉测试中表现较差，但在对象任务上通常表现良好，表明严重的面部特定加工缺陷。另一组儿童表现出严重的面部和物体处理缺陷，表明更普遍的高级视觉障碍。这些结果为在生命早期分离面部处理能力提供了证据，并为分类正在开发的面部处理系统的DP的不同表型提供了基础。

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