网络成瘾者表象扫描中抑制控制的对照研究

Inhibitory Control in Mental Scanning of Internet Addicts

目的探讨网络成瘾者表象扫描任务中抑制控制能力与正常人的差异。方法采用改进的表象扫描实验任务比较了30名网瘾者和30名正常被试表象扫描中的抑制控制能力。结果短距离扫描条件下网瘾者反应时的抑制效应量稍大于对照组(t=1.982,P=0.059),两组错误率的抑制效应量差异不显著;长距离扫描条件下网瘾者反应时和错误率的抑制效应量均显著大于对照组(t=2.271,P<0.05;t=2.186,P<0.05);正、反向扫描任务中网瘾组的表象扫描效率与对照组均无显著差异。结论网瘾者表象扫描任务中的抑制控制能力不足,但其表象扫描能力保持完好。

Objective To explore the ability of inhibitory control in mental scanning of internet addicts. Methods The revised mental scanning task was used to compare the ability of inhibitory control between 30 internet addicts and 30 normal subjects. Results When the scanning distance was short, the RT amount of inhibitory effect between internet addicts and normal subjects showed minor difference （ t = 1. 982, P = 0. 059 ） , the ER amount of inhibitory effect between the two groups showed no difference （ P 〉 0.05 ）. When the scanning distance was long, both the RT and the ER amount of inhibitory effect between the two groups were different significantly （ t = 2. 271,2. 186 ; P 〈 0.05 ）. In addition, the scanning efficiency between the two groups showed no difference （ P 〉 0. 05 ）. Conclusion Internet addicts shows inadequate ability of inhibitory control, but their ability of mental scanning remains intact.