Abstract:

Autism spectrum disorders (ASD) is a set of neurodevelopmental disorders, which is mainly characterized by social dysfunction. ASD includes autism, Asperger's syndrome and pervasive developmental disorder not otherwise specified. ASD prediction researches mainly focus on the fields of neurophysiology, genetics and psychology. In the studies of psychology, the use of eye movement technology makes not only the measurement more accurate and subtle, the process more rigorous, but also the predictive relationship more reliable. Nowadays, the eye movement prediction studies focus on fixation duration, first fixation point and saccadic reaction time. These studies have shown that ASD can be predicted by certain aspects: the short time fixation duration of the face and eyes, the decrease of fixation duration of eyes with age growing, the short gaze following time, the long time fixation duration of the repetitive physical stimulation, the visual search advantage, and the difficulty of the attentional disengagement. The future studies should reinforce the longitudinal study of the predictive function of the eye movement, increasing the predictive distinction between ASD and other development disorders, controlling the effects of visual reception on the eye movement and establishing the comprehensive predictive system.

Key words: autism spectrum disorders, fixation duration, first fixation point, saccadic reaction time