Research On Selective Attention Of Different Working Memory Loads In Children With Learning Disabilities

Selective Attention(SA)plays a pivotal role in the learning process.Learning Disabilities(LD)Children's "study failure" and "sustained absenteeism" in daily life and learning may be related to their selective attention ability.Therefore,this article will explore the selective attention characteristics of LD children under different working memory loads,with the aim of providing an empirical reference for the development of intervention measures for LD children.This study investigated the selective attention characteristics of LD children for both sequential and simultaneous stimuli under different working memory loads,including three experiments.Experiment 1 uses the classic N-back task and RSVP task to investigate the selective attention of LD children under sequential stimulation,and whether the working memory load affects the attentional momentary disconnection;Experiment 2 uses N-back task and Flanker task to investigate LD.Whether children have side inhibition under simultaneous stimulation,whether working memory load factors affect Flanker task performance;Experiment 3 uses nested method experimental design,and examines whether LD children exist in two experimental stages(target detection stage and object recognition stage).Pay attention to the enhancement phenomenon and whether the object working memory load factor affects this phenomenon.Research shows:(1)In children with LD,there is a short-term selective attention deficit in the follow-up stimulation,that is,attentional blink effect is significant,but there is no significant difference between LD children and ordinary children.(2)There is an interaction between the working memory load and the attentional transient effect.Under high working memory load conditions,LD children's awareness of short-term targets decreases.(3)The main effect of the Flanker task is significant.The selective attention of the LD children in the simultaneous stimulation based on the bilateral interference is insufficient,resulting in bilateral interference effects,and the LD children's ability toinhibit bilateral interference is worse than that of ordinary children.(4)The interaction between working memory load and Flanker effect was significant,and the selective attention of LD children decreased under high working memory load.(5)Under the condition that the simultaneous stimulation is based on central interference,the selective attention of LD children is enhanced,that is,it has the effect of attention boost,and the selective attention of ordinary children is significantly greater than that of LD children.Conclusion: In the case of sequential stimulation and simultaneous stimulation based on bilateral interference,LD children have selective attention deficit;while simultaneous stimulation shows selective attention enhancement based on central interference,that is,the time and distance of stimulation present is affecting LD children.An important factor in selective attention.