Covert Recognition Relies on Affective Valence in Developmental Prosopagnosia: Evidence From the Skin Conductance Response
Covert Recognition Relies on Affective Valence in Developmental Prosopagnosia: Evidence From the Skin Conductance Response
复制标题
DOI：
10.1037/a0029443
复制
发表时间：
2012-09-01
期刊：
影响因子：
2.4
通讯作者：
Cook, Sarah Jayne
中科院分区：
文献类型：
--
作者：
Bate, Sarah;Cook, Sarah Jayne
目的：传统上认为，在面容失认症的发育病例中不能观察到隐蔽的面部识别，因为这种现象被认为依赖于在正常处理期间创建的面部表征的激活。然而，最近的研究提供了证据的内隐识别在一些发展的情况下，和批评的一项研究的结果表明，这些人可能是处理的情感维度，而不是熟悉度的维度。目前的研究旨在探讨这种可能性，使用生理测量的隐蔽识别，皮肤电导反应（SCR）。方法：1例61岁男性发育性面容失认症患者和10例年龄匹配（M = 59.80岁，SD = 4.02）的对照组（5例男性）参加了本研究。参与者观看了一组15张著名面孔与30张新面孔的混合，并全程记录了SCR。结果如下：尽管对照组参与者对名人面孔的情感评分高于对陌生面孔的情感评分，t（9）= 2.112，p = 0.032，d = 0.382，但在患者WS中没有观察到相同的发现。然而，当WS的情感评分的增加与他对名人的情感评分相关时，观察到强烈的负相关（r =-0.614，n = 34，p = .020）。结论：这种模式的研究结果被解释为证据表明，WS是隐蔽处理的情感维度，而不是熟悉的维度，以及最近的神经生理学研究结果，支持独立处理的认知和情感信息的假设。
Objective: It has traditionally been thought that covert face recognition cannot be observed in developmental cases of prosopagnosia, because the phenomenon is thought to rely on the activation of face representations created during a period of normal processing. Yet, recent studies have provided evidence of covert recognition in some developmental cases, and critically the findings of one study suggest that these individuals might be processing faces on an affective dimension rather than a familiarity dimension. The current study aimed to examine this possibility using a physiological measure of covert recognition, the skin conductance response (SCR). Method: One 61-year-old male with developmental prosopagnosia and 10 age-matched (M = 59.80 years, SD = 4.02) controls (5 men) took part in this study. Participants viewed a set of 15 famous faces intermixed with 30 novel faces, and the SCR was recorded throughout. Results: Although control participants demonstrated an increased SCR for famous faces in comparison with novel faces, t(9) = 2.112, p = .032, d = .382, the same finding was not observed in Patient WS. However, when WS' increase in SCR was correlated with his affective ratings of the celebrities from name cues, a strong negative correlation was observed (r = -.614, n = 34, p = .020). Conclusion: This pattern of findings was interpreted as evidence that WS is covertly processing faces on an affective dimension rather than a familiarity dimension, and fits well with recent neurophysiological findings that support hypotheses for independent processing of cognitive and affective information.