IRCT201102035750N1 IRCT 2012-03-10 Vice-chancellor for research of Tehran univesity of medical sciences Treatment of social anxiety disorder SP, SAD Comparing the effectiveness of Paroxetine, Attention Modification Program and combination of both on improving social anxiety symptoms 2010-09-23 anticipated 30 Complete https://irct.ir/trial/6252 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment. N/A social phobia. Intervention 1: Attention modification group: Participants will complete probe-detection task. This task consists of paired words appearing on computer screen in a short time. One word is emotionally negative and is related to social threat (e.g criticism), another word is emotionally neutral and unrelated to social threat (e.g. pencil). Subjects’ task is to diagnose probe sign when replacing with one of paired words and pressing related key on keyboard. Probe sign is always replaced with neutral words, but participants are not told about that. Presenting probe sign after neutral words repeatedly results in changes in attentional bias from emotional word toward neutral word. Intervention 2: Pharmachotherapy group: participants will receive standard dosage of paroxetine orally (20mg to 50mg, daily). Intervention 3: Combined group: Participants in combined group will receive both pharmachotherapy and attention modification program.