An ERP Research On Attentional Blink Of Students With Learning Disability On Different Materials

The students with learning difficulties refer to whose body can grow healthily,however,it's difficult for them to absorb,transform and apply,such as listening and speaking,reading,writing,or the ability of counting and so on,adopt to it uneasily.Even if to reach the standard of the minimum educational requirements,students still should spend time and effort in studying.Meanwhile,teachers should pay more either,but the result are less than satisfactory;there are still some students whose grades are backward and can't grasp the knowledge skills.The study of the reason what factors cause the students with learning difficulties are focus on the internal reason,such as learning motivation,thinking ability,also focus on external reason,such as teaching environment,family background and so on.The innovation of this study from time dimensions this point of view that the student with learning difficulties concentrates on—the attentional blink.Using ERP technology,to research the students with learning difficulties responds to different materials in the RSVP sequence of the attentional blink of peculiarity,to reveal the effect of attentional blink on students with learning difficulty.The study consists of three experiments,participants are the students with learning difficulty who elect from a middle school and the control group,and all experiments are performed by 3(Types of students with learning difficulties: Chinese learning difficulties student,math learning difficulties student and the control group.)*2(Types of location:lag3,lag8)mixed experimental design.And,First experiment uses the classic materials RSVP sequence.The classic materials refer to 26 English letters;Second experiment uses the mathematical material RSVP sequence.The mathematical material refers to random double-digit numbers within 100;Third experiment uses the Chinese material RSVP sequence.The Chinese materials refer to unrelated Chinese character pairs.In the three experiments,the rapid serial visual presentation paradigm was used to discuss the students with learning difficulties responds to different materials in the RSVP sequence of the characteristic of the attentional blink.Through the study,finally the conclusions are following:Firstly,the students with learning difficulties and the control group are respond to the phenomenon of attentional blink in the experiment of classic materials,mathematical materials and materials and the degree of attentional blink of the students with learning difficulties are higher than that of the control group;Secondly,the students with learning difficulties are more incorrect than the non-learning difficulties students in recognize the T1 of three materials RSVP sequence.Thirdly,in the classical attentional blink experiment,both lag3 location of P300 average waveforms of students with learning difficulties and non learning difficulties are less than the lag8 location of P300 average waveforms;Finally,Chinese learning difficulties students are the greatest degree of the attentional blink in Chinese materials RSVP sequence experiment.