The Characteristis On Maintence Of Attention In Children With Learnnig Disabilitise

The Learning Disabilities has always been the key and difficult point in Education Fields. In recentyears, as the intensification of the pressure of entering higher school, and the unscientific of educationmeans, the children with Learning Disabilities are slowly expanding and becoming a social problem.Previous studies only explored learning difficulties of cognitive processing defects, but the research of whatcaused it and the brain mechanism was very limited. In this thesis, the author will take the ERP technologyas a means and use of CNV experimental paradigm, to explore more into the features of learningdifficulties keeping machining.Select25students with learning difficulties, and26subjects as control group. The subjects are thejunior students of grade one and grade two, evenly divided between male and female, good health, aged12-14years old. The51participators accept the auditory CNV experiment and visual CNV experimentrespectively. The conclusions are as follows:(1) There is significant difference between Learning Disabilities group and control group in auditoryexperimental CNV Reaction Time. The Learning Disabilities group`s response is slower than the controlgroup`s. The capacity of auditory Maintenance of attention of The children with Learning Disabilities isdefective,not concentrate.(2) The average amplitude of The Learning Disabilities group in the auditory CNV experiment, ICNVand PINV had significantly lower than controls. The capacity of auditory Maintenance of attention of Thechildren with Learning Disabilities is impaired.The reticular formation in the brainstem(FR) andsupplementary motor area(SMA) has not been fully activated.Expectations of behavior is relativelyweak.The abilities of auditory advanced motor preparation and sensory attention are insufficient. The capacity of auditory movement evaluation in SMA and contingency evalution in higher associative areas isdefective(3) There is significant difference between Learning Disabilities group and control group in visualexperimental CNV Reaction Time. The Learning Disabilities group`s response is slower than the controlgroup`s. The capacity of visual Maintenance of attention of The children with Learning Disabilities isdefective,not concentrate.(4) The average amplitude of The Learning Disabilities group in the visual CNV experiment, ICNVand PINV had significantly lower than controls. The capacity of visual Maintenance of attention of Thechildren with Learning Disabilities is impaired.The reticular formation in the brainstem(FR) andsupplementary motor area(SMA) has not been fully activated.Expectations of behavior is relativelyweak.The abilities of visual advanced motor preparation and sensory attention are insufficient. The capacityof visual movement evaluation in SMA and contingency evalution in higher associative areas is defective...