The Research On Prospective Memory Of Children With LD:Evidence From ERP

A great of experiment and research showed that the central executive function defect doesexist in children with LD which must infliunce prospective memory in comparasion with thenoamal children. In view of the important part of prospective memory in children learning and life,this research will study the neural mechanism of envent-based prospective memory andactivity-based prospective memory based on the previous behaviour research and neuralmechanism.Experiment1adopts double task paradigm that prospective memory task will be embedded inongoing task,examines the neural mechanism of the intention retrieval of envent-basedprospective memory and whether there will be individual differences between children wtih LDand better-learning children. On the one hand it tends to test when children wtih LD andbetter-learning children performs a PM task, the N300and prospective positivity will be observed.On the other hand it also tends to test when children wtih LD performs a PM task, the amplitudeof the N300and prospective positivity will be smaller and the incubation period will be shorter incomparasion with that of better-learning children.Experiment2examines the neural mechanism ofthe intention retrieval of activity-based prospective memory and whether there will be individualdifferences between children wtih LD and better-learning children. On the one hand it tends to testwhen children wtih LD and better-learning children performs a PM task, the N300and prospectivepositivity will be observed. On the other hand it also tends to test when children wtih LD performsa PM task, the amplitude of the prospective positivity will be smaller. Finally, the conclusions asfollows:First, in a envent-based prospective memory task, there are significant difference on reactiontime and the accuracy between children wtih LD and better-learning children.Second, in a activity-based prospective memory task, there are significant difference onreaction time and the accuracy between children with LD and better-learning children.Third, in a envent-based prospective memory task, the children wtih LD performs a PM task which induces the longer incubation period of the N300and prospective positivity in comparasionwith that of better-learning children.Forth, in a activity-based prospective memory task, the better-learning children performs aPM task which induces the bigger amplitude of the prospective positivity in comparasion with thatof children wtih LD.Fifth, in a envent-based prospective memory task and a activity-based PM task, childrenwtih LD and better-learning children performs a PM task which induces the N300and theprospective positivity.Sixth, children with LD and better-learning children in a cognitive fatigue group performs theongoing task which elicites the bigger amplitude of the P300in comparasion with that of childrenwith LD and better-learning children in a non-cognitive fatigue group.