Objective  To investigate the attentional bias for emotionally faces in subjects with low-trait anxiety when they are under normal or induce-fear emotion. Methods  Trait anxiety inquiry (T-AI) were used to evaluate the mental health status of 480 freshman in a university

and 450 valid questionnaires were obtained. Among them

90 students were identified as low trait anxiety. Sixty students from them were randomized into 2 group (n=30) to receive a dot-probe task with emotional face as stimulus. They were asked to judge the target. The attentional bias under normal or fear-induced emotion to the emotionally faces was examined．Results  Low trait anxious college students showed attentional avoidance to the negative faces when they were under normal emotion [D=(-11.09±25.40)

t=-2.391

P=0.024]

and the orientation was significant [OI=(-20.28±22.90)

t=-4.850

P0.01]. However

the attentional avoidance disappeared when they were under fear-induced emotion [D=(3.73±25.28)

t=0.794

P0.05]. Conclusion  Low trait anxious college students have attentional avoidance to negative faces because of orientation

but the avoidance will disappear when they are under fear emotion．