中文摘要：

以学习不良青少年为被试，采用成绩反馈法诱发情绪，考察了情绪对学习不良青少年选择性注意和持续性注意的影响，结果表明：（1）情绪会影响学习不良青少年的选择性注意，具有积极低唤醒情绪的学习不良青少年，他们的选择性注意的反应时显著短于消极情绪下的被试；（2）学习不良青少年的情绪会影响到他们的持续性注意能力，消极高唤醒的情绪能够增加虚报率，而积极高唤醒的情绪能够提高判断标准，降低虚报率。

英文摘要：

Introduction Attention is the central factor in the cognition of humans; further, it plays a vital role in learning and cognitive performances. However, people with learning disabilities （LDs） often experience difficulties with many aspects of attention and emotions. Moreover, researchers have provided evidence that emotions play an important role in cognitive processing and learning. Based on these results, the present study addresses the issue of whether emotional problems affect the attention of people with LDs. This study examined the effect of emotions on selective and sustained attention performances in adolescents with LDs. We hypothesized that attention performances could be improved by positive emotions. Method We conducted two experiments using the feedback of the performance resulting from induced emotions. Experiment 1 examined the effect of emotions on the selective attention of adolescents with LDs using a visual search task. The participants in experiment 1 comprised 70 adolescents with LDs, including 36 males and 34 females, aged between 15 and 17. Experiment 2 examined the effect of emotions on the sustained attention of adolescents with LDs using a CPT - AX task. The participants in this experiment included 69 adolescents with LDs, of which 33 were male and 36 were female, aged between 16 and 18. All participants were separated into four groups according to the results obtained from the induced emotions. Both experimental tasks were completed using VC ＋ ＋. Further, all stimuli were presented using a PC. The display was a 17 inch Lenovo LX - GJ556D with a refresh frequency of 85Hz. The stimuli presented were black; the background was white. A training trial was conducted to ensure that the participants understood the task instructions. Following this training, all participants were required to estimate their emotional statement based on arousal （1 = not at all excited; 9 = extremely excited） and the Hedonic value dimension （1 = not at all happy; 9 = extremely happy）. Thereaft