Too much could explain addictive or compulsive behavior, because it would help a user ignore other things and focus a lot of attention on one particular goal. 过量则可以解释成瘾或强迫行为，因为它将让使用者忽略其他事物，对某一特定目标投入极大关注。
Patients often become introverted, exhibit compulsive behaviors and lose inhibitions that would otherwise prevent them from acting inappropriately toward others in social settings. 患者常会变得内向，表现出强迫行为，而且平常在社交场合中，防止自己对别人做出不当行为的抑制能力也丧失了。
