The attenuated visual scanpaths of patients with schizophrenia whilst recognizing emotional facial expressions are worsened in natural social scenes
The attenuated visual scanpaths of patients with schizophrenia whilst recognizing emotional facial expressions are worsened in natural social scenes
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DOI：
10.1016/j.schres.2020.03.040
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发表时间：
2020-06-01
影响因子：
4.5
通讯作者：
Wang, Chuan-Yue
中科院分区：
文献类型：
--
作者：
Li, Xian-Bin;Jiang, Wen-Long;Wang, Chuan-Yue
近年来，精神分裂症患者在情绪面部表情下的视觉扫描路径的改变已经被描述;然而，尚不清楚当这些结果转移到自然社交场景中的面部时是否不同。本研究旨在探讨精神分裂症患者在自然社会场景中的情绪面孔对凝视模式的影响，并与凝视孤立面孔进行比较。一个新的主题识别任务，参与者选择一个积极的，中性的或消极的词来描述一个情绪化的图片。研究对象为29名精神分裂症患者和31名健康对照者。采用阳性与阴性症状量表（PANSS）和住院精神病患者社会功能量表（SSPI）评定症状和社会功能。总的来说，精神分裂症患者在感兴趣的区域表现出明显较少的注视，扫视次数和注视减少。正如预期的那样，患者显示较短的扫描路径长度，但仅在社交环境的图片中。此外，社会场景下的扫描路径参数的效应量均大于孤立人脸。此外，与对照组相比，患者显示更多的异常扫描路径参数处理消极和中性面孔比积极的面孔，特别是在社会场景。本研究表明，扫描路径长度的社会场景的脸可能比孤立的脸图片更敏感。我们的研究结果进一步支持有限的扫描路径，同时认识到情感的面部表情在自然的社会场景作为一个有利的主题，进一步调查作为一个特质标记。
Alteration of visual scanpaths under emotional facial expression in schizophrenia patients has been described in recent years; however, it is not clear whether such results are different when they transfer to faces in natural social scenes. The present study was designed to investigate the effects of emotional faces in natural social scenes on the gaze patterns of patients with schizophrenia, compared to gaze at isolated faces. A novel theme identification task was used where participants selected a positive, neutral or negative word to describe an emotional picture. Participants were 29 patients with schizophrenia and 31 healthy controls. The Positive and Negative Syndrome Scale (PANSS) and the Scale of Social Function in Psychosis Inpatients (SSPI) were used to assess symptoms and social functioning. In total, patients with schizophrenia showed significantly fewer fixations, saccades numbers and decreased fixations in areas of interest. As expected, patients showed shorter scanpath length, but only in the pictures with social settings. Furthermore, the effect size of scanpaths parameters under social scene was all greater than isolated face. In addition, patients compared to controls showed more abnormal scanpath parameters processing negative and neutral faces than positive faces, especially in social scene. The present study suggests that scanpath length for social scene faces may be more sensitive than for isolated face pictures. Our findings further support restricted scanpath whilst recognizing emotional facial expressions in natural social scenes as a favorable topic for further investigation as a trait marker.