Normal greeble learning in a severe case of developmental prosopagnosia
Normal greeble learning in a severe case of developmental prosopagnosia
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DOI：
10.1016/j.neuron.2004.08.006
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发表时间：
2004-08-19
期刊：
影响因子：
16.2
通讯作者：
Nakayama, K
中科院分区：
文献类型：
--
作者：
Duchaine, BC;Dingle, K;Nakayama, K
认知神经科学的一个核心问题是，是否存在特定领域的专门机制。一个最常被引用的领域特定能力的例子是人类识别直立面孔的能力。然而，根据广泛讨论的另一种假设，人脸识别是由专门用于处理个人具有专业知识的任何对象类别的机制来执行的。根据这个领域一般假设，面孔只是专家类别的一个例子。非面部物体的专业知识已经通过一种训练程序进行了深入的研究，这种训练程序涉及一种被称为grebles的人工刺激类。这一假设的一个关键预测是，有面部识别障碍的个体在其他类别上也会有障碍，而对照组的受试者在其他类别上有专长。我们的研究结果表明，患有严重面孔失认症的男性在整个标准的绿色训练过程中表现正常。这些发现表明，人脸识别和绿色识别依赖于不同的机制。
A central question in cognitive neuroscience is whether mechanisms exist that are specialized for particular domains. One of the most commonly cited examples of a domain-specific competence is the human ability to recognize upright faces. However, according to a widely discussed alternative hypothesis, face recognition is instead performed by mechanisms specialized for processing any object class for which an individual has expertise. Faces, according to this domain-general hypothesis, are just one example of an expert class. Nonface object expertise has been intensively investigated using a training procedure involving an artificial stimulus class known as greebles. A key prediction of this hypothesis is that individuals with face recognition impairments will also have impairments with other categories that control subjects have expertise with. Our results show that a man with severe prosopagnosia performed normally throughout the standard greeble training procedure. These findings indicate that face recognition and greeble recognition rely on separate mechanisms.