快速阅读训练对基于视觉定向搜索的注意力影响:ERP研究

ERPs Study on the Effect of Fast Reading Training on Attention Based on Visual Beam Search

以视觉搜索任务为检测作业,运用事件相关电位(ERPs)技术,考察快速阅读训练对神经系统注意功能的影响。进行视觉定位搜索测试,被试后测ERP成分P200在电极点F3的波幅较前测显著减小,但P130在电极点P7的潜伏期显著长于前测,N200在电极点P7的波幅较前测显著增大;进行视觉顺序搜索测试,被试后测ERP成分P130在电极点P7的潜伏期显著长于前测,N120在电极点P7的波幅显著大于前测;对于相同的视觉搜索任务,被试后测的反应时和作答率均优于前测,且被试进行顺序搜索时的作答率前后测差异具有显著性。结果表明,经过快速阅读训练,被试的前额叶功能和外源性注意功能可能得到了激活和扩大。

Taking visual search task as detection task,and combining with event-related potentials(ERPs)technology,the present study was to investigate the effect of speed reading training on the attention function of the nervous system.During the visual fixed point search test,compared with those before training,the subjects'amplitudes of P130 and P200 at the electrode points P7 and F3 decreased significantly after training,but the amplitudes of N200 at the electrode point P7 increased significantly compared with those before training.During the visual sequence search test,it was found that the subjects'latency of P130 at the pole P7 was significantly longer than that of before training,and the amplitude of N120 at the pole P7 was significantly larger than before training.The results from the same visual search task indicated that the response time after training was less than that of before training;the response rate after training was higher than that of before training.There was a significant difference in the response rate of sequential search test between before and after training.The results suggest that the subjects'prefrontal function and exogenous attentional function may be more activated and enlarged after speed reading training.