Objective To explore emotional problems and neuropsychological differences between adolescents with internet addict and normal controls, and to provide evidence for further prevention. Methods sixteen adolescents diagnosed of internet addict and 16 normal controls were surveyed using self-rating anxiety scale (SAS) and self-rating depression scale ( SDS) . Stroop test was applied to measure the cognitive function in these two groups. Results The scores of SAS (P < 0.05) and SDS (P < 0.01) questionnaires were significantly higher in internet addicted adolescents than in controls. The reaction time was longer and the correct rate was lower in Stroop test in the internet addicted adolescents than in controls. However statistical significance was not reached. Conclusion The internet addicted adolescents may have a tendency of anxiety and depression and their cognitive function may also have been affected.%目的：研究网络成瘾青少年与正常青少年在情绪和认知功能上的差异，为青少年网络成瘾的预防和干预提供依据。方法对网络成瘾青少年（16例）和正常青少年（16例）进行自评焦虑问卷（self-rating anxiety scale， SAS）、自评抑郁问卷（self-rating depression scale， SDS），以及Stroop测验。结果网络成瘾组青少年无论焦虑自评量表（P＜0.05）还是抑郁自评量表（P＜0.01）的得分都显著高于对照组。 Stroop测验中网络成瘾青少年反应时间长于正常青少年，不一致的正确率低于正常青少年，但差异没有统计学意义。结论网络成瘾青少年可能存在焦虑和抑郁倾向，其认知功能可能受到影响。
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