眼部线索对孤独症儿童视线加工的影响

The Effect of Eye Cues on Visual Processing to Autistic Children

孤独症儿童社会交往障碍的核心是共同注意能力缺失,主要表现为对他人眼神的回避。眼部瞳孔映射是一种将被试图像成像于虚拟人眼睛中的技术,能模拟真实世界场景,可为孤独症儿童的干预提供新途径。本研究将瞳孔映射技术运用到孤独症儿童的视线加工研究中,选取63名孤独症儿童为被试,采用眼部线索(瞳孔映射与无瞳孔映射)与面孔类型(真人面孔与卡通面孔)相结合的刺激材料,借助Tobbi 4C眼动仪记录并分析被试的数据。研究发现在瞳孔映射条件下,孤独症儿童对眼部与面孔的注视显著多于无瞳孔映射,呈现卡通面孔时对眼睛的注视点数多于真人面孔。结果表明,眼部线索对孤独症儿童的视线加工产生了正向影响,瞳孔映射技术能够增加其对眼睛的注视程度,对提升共同注意能力有积极作用。

The core of autistic children's social communication disorder is lack of common attention ability, which is mainly manifested in avoidance of other people's eyes. Eye pupil mapping is a technology that tries to image the experimenter's image in the eyes of virtual human. It can simulate real world scenes and provide a new way of intervention for autistic children. In this study, pupil mapping technology was applied to the study of visual processing in autistic children. 63 autistic children were selected as subjects. The stimulus materials were combined with eye cues (pupil mapping and non-pupil mapping) and face types (real face and cartoon face). The data of the subjects were recorded and analyzed by Tobbi 4C eye movement meter. It was found that under the condition of pupil mapping, autistic children's gaze on eyes and faces was significantly more than that of non-pupil mapping. When cartoon faces were presented, the number of gaze on eyes was more than that of real faces. The results show that eye cues have a positive impact on the visual processing of autistic children. Pupil mapping technology can increase the degree of eye attention and improve the ability of common attention.