Lateralization of facial emotional expression in schizophrenic and depressed patients.
Lateralization of facial emotional expression in schizophrenic and depressed patients.
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精神分裂症和抑郁症患者面部情绪表达的偏侧化。
DOI：
10.1176/jnp.11.3.370
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
Welkowitz,J
中科院分区：
文献类型：
--
作者：
Yecker,S;Borod,JC;Brozgold,A;Martin,C;Alpert,M;Welkowitz,J
本研究探讨了面部情绪表情所产生的精神分裂症（SZ），单相抑郁症（UD），和正常对照组（NC）右利手的成年人。关于右半球激活UD和抑制SZ的假设进行了讨论，以及关于情绪和偏侧性的假设。受试者被录像，同时提出积极的，中性的，和消极的面部表情，以口头命令和视觉模仿。天真的法官额定半面刺激强度在原来的和镜像反转的方向。总体而言，SZ产生的表达强度相对于UD和NC降低。在受试者群体中，视觉条件下的表达比语言条件下的表达更强烈。一般来说，接近表情产生更大的右半面强度，和更大的左半面强度撤回表达式。UD比SZ或NC表现出更明显的面部不对称。一个意想不到的右半球知觉偏见的法官可能反映了分析，详细的评级程序使用和推测更大的依赖由法官对左半球比右半球的策略。
This study examined facial emotional expressions produced by schizophrenic (SZ), unipolar depressed (UD), and normal control (NC) right-handed adults. Hypotheses regarding right-hemisphere activation in UD and suppression in SZ were addressed, as well as hypotheses about emotion and laterality. Subjects were videotaped while posing positive, neutral, and negative facial expressions to verbal command and to visual imitation. Naive judges rated hemiface stimuli for intensity in original and mirror-reversed orientations. Overall, SZs produced expressions with diminished intensity relative to UDs and NCs. Across subject groups, expressions were more intense in the visual than the verbal condition. In general, approach expressions were produced with greater right-hemiface intensity, and withdrawal expressions with greater left-hemiface intensity. UDs showed more pronounced facial asymmetry than SZs or NCs. An unanticipated right-hemispace perceptual bias among the judges may reflect the analytical, detailed rating procedure used and the presumably greater reliance by the judges on left- than right-hemisphere strategies.