Visual exploration of emotional facial expressions in Parkinson's disease.
Visual exploration of emotional facial expressions in Parkinson's disease.
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DOI：
10.1016/j.neuropsychologia.2010.03.006
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发表时间：
2010-06
期刊：
影响因子：
2.6
通讯作者：
Cronin-Golomb A
中科院分区：
文献类型：
--
作者：
Clark US;Neargarder S;Cronin-Golomb A
帕金森病（PD）与面部情绪识别障碍以及视觉和执行功能障碍有关。我们调查是否面部情绪分类障碍PD归因于视觉扫描异常，通过记录16个非痴呆PD和20个健康对照（HC）参与者在情绪识别任务的眼球运动。我们研究了几个因素的影响，可以影响视觉扫描，包括视力，基本视觉和认知能力（执行功能）。在左侧运动症状发作的PD参与者中，惊讶面部表情顶部区域的固定次数和持续时间的增加与这种情绪的识别准确性的增加有关。与HC男性相比，HC女性花在恐惧表情上的时间更少。PD参与者表现出眼部异常（反视），但这些与扫描模式无关。仅PD组的视力测量（敏锐度、对比敏感度）与扫描模式相关。PD患者的执行功能与较长的注视时间相关，HC患者的注视次数较多。我们的研究结果表明，PD患者的面部情绪分类障碍和面部表情扫描之间存在特定的关系。PD和HC被试在情绪分类任务中的扫描行为受不同的知觉过程和认知策略驱动。我们的研究结果强调了在视觉扫描研究中需要考虑感知和认知能力的差异，特别是在视觉和认知受损的患者群体中检查这种能力时。
Parkinson's disease (PD) is associated with impairments in facial emotion recognition as well as visual and executive dysfunction. We investigated whether facial emotion categorization impairments in PD are attributable to visual scanning abnormalities by recording the eye movements of 16 non-demented PD and 20 healthy control (HC) participants during an emotion recognition task. We examined the influence of several factors that can affect visual scanning, including oculomotor, basic visual, and cognitive abilities (executive function). Increases in the number and duration of fixations in the top regions of surprise facial expressions were related to increases in recognition accuracy for this emotion in PD participants with left-sided motor symptom onset. Compared to HC men, HC women spent less time fixating on fearful expressions. PD participants displayed oculomotor abnormalities (antisaccades), but these were unrelated to scanning patterns. Performance on visual measures (acuity, contrast sensitivity) correlated with scanning patterns in the PD group only. Poorer executive function was associated with longer fixation times in PD and with a greater number of fixations in HC. Our findings indicate a specific relation between facial emotion categorization impairments and scanning of facial expressions in PD. PD and HC participants' scanning behaviors during an emotion categorization task were driven by different perceptual processes and cognitive strategies. Our results underscore the need to consider differences in perceptual and cognitive abilities in studies of visual scanning, particularly when examining this ability in patient populations for which both vision and cognition are impaired.
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影响因子：
2.6
作者：
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发表时间：
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