Robinson Lucy J, Gray John M, Burt Mike, Ferrier I Nicol, Gallagher Peter
1School of Psychology,Newcastle University,United Kingdom.
2Institute of Neuroscience (Academic Psychiatry),Newcastle University,United Kingdom.
J Int Neuropsychol Soc. 2015 Oct;21(9):709-21. doi: 10.1017/S1355617715000909.
Previous studies of facial emotion processing in bipolar disorder (BD) have reported conflicting findings. In independently conducted studies, we investigate facial emotion labeling in euthymic and depressed BD patients using tasks with static and dynamically morphed images of different emotions displayed at different intensities. Study 1 included 38 euthymic BD patients and 28 controls. Participants completed two tasks: labeling of static images of basic facial emotions (anger, disgust, fear, happy, sad) shown at different expression intensities; the Eyes Test (Baron-Cohen, Wheelwright, Hill, Raste, & Plumb, 2001), which involves recognition of complex emotions using only the eye region of the face. Study 2 included 53 depressed BD patients and 47 controls. Participants completed two tasks: labeling of "dynamic" facial expressions of the same five basic emotions; the Emotional Hexagon test (Young, Perret, Calder, Sprengelmeyer, & Ekman, 2002). There were no significant group differences on any measures of emotion perception/labeling, compared to controls. A significant group by intensity interaction was observed in both emotion labeling tasks (euthymia and depression), although this effect did not survive the addition of measures of executive function/psychomotor speed as covariates. Only 2.6-15.8% of euthymic patients and 7.8-13.7% of depressed patients scored below the 10th percentile of the controls for total emotion recognition accuracy. There was no evidence of specific deficits in facial emotion labeling in euthymic or depressed BD patients. Methodological variations-including mood state, sample size, and the cognitive demands of the tasks-may contribute significantly to the variability in findings between studies.
先前关于双相情感障碍（BD）患者面部情绪加工的研究报告结果相互矛盾。在独立开展的研究中，我们使用不同强度呈现的不同情绪的静态和动态变形图像任务，对处于心境正常和抑郁状态的BD患者进行面部情绪标注研究。研究1纳入了38名心境正常的BD患者和28名对照者。参与者完成两项任务：对不同表情强度下呈现的基本面部情绪（愤怒、厌恶、恐惧、高兴、悲伤）的静态图像进行标注；眼睛测试（巴伦-科恩、惠尔赖特、希尔、拉斯特和普拉姆，2001年），该测试仅使用面部的眼睛区域来识别复杂情绪。研究2纳入了53名抑郁的BD患者和47名对照者。参与者完成两项任务：对相同的五种基本情绪的“动态”面部表情进行标注；情绪六边形测试（扬、佩雷特、考尔德、施普伦格尔迈尔和埃克曼，2002年）。与对照组相比，在任何情绪感知/标注指标上均未发现显著的组间差异。在两项情绪标注任务（心境正常和抑郁）中均观察到显著的强度×组交互作用，尽管在加入执行功能/精神运动速度指标作为协变量后，该效应不再显著。在总的情绪识别准确性方面，只有2.6%-15.8%的心境正常患者和7.8%-13.7%的抑郁患者得分低于对照组的第10百分位数。没有证据表明心境正常或抑郁的BD患者在面部情绪标注方面存在特定缺陷。方法学上的差异——包括情绪状态、样本量和任务的认知要求——可能是导致不同研究结果差异的重要原因。
