Rapcsak S Z, Comer J F, Rubens A B
Neurology Service, Tucson VA Medical Center, AZ 85723.
Brain Lang. 1993 Aug;45(2):233-52. doi: 10.1006/brln.1993.1044.
We report a patient with a selective impairment in naming and pointing to emotional facial expressions following a circumscribed lesion of the right temporal lobe. Detailed investigation of this patient's deficit revealed that the neuropsychological mechanism underlying his anomia for facial expressions is best understood as a category-specific bidirectional visual-verbal disconnection between intact visual semantic and verbal semantic representations for facial emotions. Magnetic resonance imaging findings from this case and from another patient previously described with this unique syndrome (Rapcsak, Kaszniak, & Rubens, 1989), together with the results of cortical electrical stimulation studies and microelectrode recordings of cortical neuronal activity in epileptic patients, provide converging evidence that the inferotemporal visual association cortex of the right middle temporal gyrus plays an important functional role in the verbal labeling of emotional facial expressions. The implications of these findings for cognitive and neural models of facial affect processing are discussed.
我们报告了一名患者，其右侧颞叶局限性损伤后出现了命名和指向情绪性面部表情的选择性障碍。对该患者缺陷的详细调查显示，其面部表情命名障碍背后的神经心理机制，最好理解为面部情绪完整的视觉语义和言语语义表征之间的类别特异性双向视觉 - 言语脱节。该病例以及先前描述的患有这种独特综合征的另一名患者（Rapcsak、Kaszniak和Rubens，1989年）的磁共振成像结果，连同癫痫患者的皮质电刺激研究结果和皮质神经元活动的微电极记录，提供了相互印证的证据，表明右侧颞中回的颞下视觉联合皮质在情绪性面部表情的言语标记中发挥着重要的功能作用。讨论了这些发现对面部情感加工的认知和神经模型的意义。
