| 其他摘要 | Objective:To observe the specific effect of speed reading training on visual attention function of children aged 9 to 13 years.Methods:Thirty elementary school students aged 9 to 13 years were recruited as subjects,using Schulte Grid as experimental materials and the visual directional search task as test item.The subjects underwent an attention test before and after a speed reading training respectively,while the ERP components under different statuses were recorded and analyzed at BP-ERP workstations,to study the brain electrical changes related to visual attention before and after the speed reading training,and to analyze the neurophysiological mechanism indicating the effect of the speed reading training on the subjects’ visual attention.The results showed:①for the same visual search task, both response time and completion rate after the training was better than before the training,and the completion rate of the subjects in the sequential search was significantly different between before and after the training.②When performing the positioning search,the latency periods of N120 at F3,FC2 and FC5 points after the training increased significantly compared with that of before the training.When performing sequential search,the amplitude at F7 and Fz points after the training increases significantly compared with that of before the training;As to N60 and P130 at P7 point,the latency periods of both the two visual search tasks were significantly different between before and after the training.③As to P200 at Fp1,Fp2,F7,Fz,T7 points,the amplitudes of both two visual search tasks after the training were significantly smaller than that of before the training;as to N200 at P7 point,the amplitudes of both two visual search tasks after the training were significantly greater than that of before the training.④As to P250 at P7 point, the latency periods of both two visual search tasks after the training were significantly smaller than that of before the training.⑤As to N310 at F4,T7,P7,Fz and FCz points,the amplitudes of both two visual search tasks after the training were significantly greater than that of before the training.When performing any of the visual search tasks,there were also significant differences of latency periods and amplitudes between before and after the training at many other electrode points.Conclusion:Speed reading training has a positive effect on the subjects’ visual directional search ability.The attention quality such as the breadth of attention, the shift of attention and the stability of attention have been improved;Speed reading training may activate the attention function of multiple cerebral network cortex, and reduce the consumption of cognitive resources;The N310 component found in the study is of great importance.The results show that speed reading training reading training may strengthen the subjects' ability to detect and identify prospective cues,and to extract intention.This process mobilizes more psychological factors and still needs to consume attention resources, which belongs to the information processing process of consciousness control type. |
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