Research On The Language Ability Assessment Of Autistic Children With Computer-aided Technology

The language barrier is the most typical developmental disorder in autistic children.Due to the complexity of language elements and the significant individual differences of children with autism,each child has different language deficits.Therefore,using effective and reliable language assessment methods to find their language defects is the basis and premise for them to develop appropriate language intervention programs and select teaching methods.Generally,we conduct language assessment on autistic children in the comprehensive assessment scale,the parent report and self-made questionnaire to test their language skills.These methods are complex,time-consuming,and subjective.With the development of computer-aided technology and experimental technology,some researchers have begun to design computer-based assessment and intervention tools and applied them to the field of autistic children.They are not adapted to interpersonal communication and are more likely to accept human-computer interaction scenarios such as virtual reality and electronic equipment.Therefore,assessment and intervention based on computer aided technology can reduce children's anxiety,attract children's attention,and improve the accuracy and effectiveness of assessment and intervention.Based on the theories of human-computer interaction,constructivism and cognitive psychology,this study uses computer-aided technology and eye tracking technology to evaluate the six language skills of 15 autistic children and 15 normal children aged 3-9.Six language indicators are naming,cognitive classification,response to instructions,visual perception,writing,and dialogue interaction skills.The results of computer assessment were compared with those of children's development assessment report and PEP scale in order to verify the effectiveness of computer assessment methods and materials and develop appropriate language intervention programs for children.In order to further analyze the correlation between language development and attention patterns,researchers used eye movement equipment simultaneously to observe the cognitive patterns of two groups of children in the assessment process.The results show that:(1)there are significant differences in the performance of six language indicators between autistic children and normal children.(2)There was a positive correlation between children's performance under two different language assessment methods in both groups,which verified the consistency between computer-aided assessment and traditional assessment.(3)The language development of autistic children is unbalanced.Their cognitive and sensory abilities are defective,and their expressive language skills are weaker than their receptive language skills.(4)We explored the cognitive patterns of autistic children and normal children and found that normal children cognize people and things on the basis of the psychological intentions of others and perceptual clues,but autistic children cannot perceive clues and the intentions,and they often cognize people and things based on their own judgment,ignoring the external factors.Therefore,the language assessment of visual perception confirmed their weak central coherence.