1. 1. Levy RL, Olden KW, Naliboff BD, Bradley LA, Francisconi C, Drossman DA, et al. Psychosocial aspects of the functional gastrointestinal disorders. Gastroenterology. 2006; 130(5):1447-58. 2. Spiller R, Aziz Q, Creed F, Emmanuel A, Houghton L, Hungin P, et al. Guidelines on the irritable bowel syndrome: mechanisms and practical management. Gut. 2007; 56(12):1770-98. 3. Chey WD, Maneerattaporn M, Saad R. Pharmacologic and complementary and alternative medicine therapies for irritable bowel syndrome. Gut Liver. 2011; 5(3):253-66. 4. Jahangiri P, Jazi MS, Keshteli AH, Sadeghpour S, Amini E, Adibi P. Irritable Bowel Syndrome in Iran: SEPAHAN Systematic Review No. 1. Int J Prev Med. 2012; 3(Suppl 1):S1-9. 5. Tayama J, Nakaya N, Hamaguchi T, Tomiie T, Shinozaki M, Saigo T, et al. Effects of personality traits on the manifestations of irritable bowel syndrome. Biopsychosoc Med. 2012; 6(1):20.. 6. Videlock EJ, Chang L. Irritable bowel syndrome: current approach to symptoms, evaluation, and treatment. Gastroenterol Clin North Am. 2007; 36(3):665-85, x. 7. Faeli A, Mohammadifar MA, Azizpour M, Dabiri R. Comparison of personality traits and quality of life in people with irritble bowel syndrom and normal people. Clinical Psychology. 2017; 9(1): 1-10. 8. Gros DF, Antony MM, McCabe RE, Swinson RP. Frequency and severity of the symptoms of irritable bowel syndrome across the anxiety disorders and depression. J Anxiety Disord. 2009; 23(2):290-6. 9. Folks DG. The interface of psychiatry and irritable bowel syndrome. Curr Psychiatry Rep. 2004; 6(3):210-5. 10. Porcelli P, De Carne M, Leandro G. The role of alexithymia and gastrointestinal-specific anxiety as predictors of treatment outcome in irritable bowel syndrome. Compr Psychiatry. 2017; 73:127-135. 11. Karlsen BS, Clench-Aas J, Van Roy B, Raanaas RK. Relationships between Social Anxiety and Mental Health Problems in Early Adolescents from Different Socioeconomic Groups: Results from a Cross-sectional Health Int J Med Invest 2019; vol 8; num 1; 19-30 http://www.intjmi.com Survey in Norway. J Psychol Abnorm Child. 2014; 3(3):120. 12. Strain JJ. The psychobiology of stress, depression, adjustment disorders and resilience. World J Biol Psychiatry. 2018;19(sup1): S14-S20. 13. Gholamrezaei A, Minakari M, Nemati K, Daghaghzadeh H, Tavakkoli H, Dehcord MH. Extra-intestinal Symptoms and their Relationship to Psychological Symptoms in Patients with Irritable Bowel Syndrome. Govaresh. 2011; 15(2):88-94. 14. Blanchard EB, Lackner JM, Sanders K, Krasner S, Keefer L, Payne A, et al. A controlled evaluation of group cognitive therapy in the treatment of irritable bowel syndrome. Behav Res Ther. 2007; 45(4):633-48. 15. Ebrahimi A, Naddafnia L, Neshatdust HT, Talebi H, Afshar H, Mail HD, Adibi P. The Effectiveness of Cognitive Behavioral Therapy on Symptoms Intensity, Quality of Life, and Mental Health in Patients with Irritable Bowel Syndrome. Int J Body Mind Culture. 2015; 2(2): 76-84. 16. Ravens-Sieberer U, Karow A, Barthel D, Klasen F. How to assess quality of life in child and adolescent psychiatry. Dialogues Clin Neurosci. 2014; 16(2):147-58. 17. Hahn BA, Kirchdoerfer LJ, Fullerton S, Mayer E. Patient-perceived severity of irritable bowel syndrome in relation to symptoms, health resource utilization and quality of life. Aliment Pharmacol Ther. 1997; 11(3):553-9. 18. Hazrati M, Hosseini M, Dejpakhsh T, Taghavi SA, Rajaeefard A. The study effect of Benson relaxation on anxiety and symptom severity of patients with irritable bowel syndrome. J Arak Med Sci. 2006; 4(2), 1-9. 19. Hu WH, Wong WM, Lam CL, Lam KF, Hui WM, Lai KC, et al. Anxiety but not depression determines health care-seeking behaviour in Chinese patients with dyspepsia and irritable bowel syndrome: a population-based study. Aliment Pharmacol Ther. 2002; 16(12):2081-8. 20. Groll D, Vanner SJ, Depew WT, DaCosta LR, Simon JB, Groll A, et al. The IBS-36: a new quality of life measure for irritable bowel syndrome. Am J Gastroenterol. 2002; 97(4):962-71. 21. World Health Organization. WHOQOL-BREF: introduction, administration, scoring and generic version of the assessment: field trial version, December 1996. 22. Bonomi AE, Patrick DL, Bushnell DM, Martin M. Validation of the United States' version of the World Health Organization Quality of Life (WHOQOL) instrument. J Clin Epidemiol. 2000; 53(1):1-12. 23. Silk DB. Impact of irritable bowel syndrome on personal relationships and working practices. Eur J Gastroenterol Hepatol. 2001; 13(11):1327-32. 24. Li FX, Patten SB, Hilsden RJ, Sutherland LR. Irritable bowel syndrome and health-related quality of life: a population-based study in Calgary, Alberta. Can J Gastroenterol. 2003; 17(4):259-63. 25. Sararoudi RB, Afshar H, Adibi P, Daghaghzadeh H, Fallah J, Abotalebian F. Type D personality and quality of life in patients with irritable bowel syndrome. J Res Med Sci. 2011; 16(8):985-92. 26. Hungin AP, Chang L, Locke GR, Dennis EH, Barghout V. Irritable bowel syndrome in the United States: prevalence, symptom patterns and impact. Aliment Pharmacol Ther. 2005; 21(11):1365-75. 27. El-Serag HB, Olden K, Bjorkman D. Health-related quality of life among persons with Int J Med Invest 2019; vol 8; num 1; 19-30 http://www.intjmi.com irritable bowel syndrome: a systematic review. Aliment Pharmacol Ther. 2002; 16(6):1171-85. 28. Hayes SC, Hofmann SG. The third wave of cognitive behavioral therapy and the rise of process-based care. World Psychiatry. 2017; 16(3):245-246. 29. Ruiz FJ. Acceptance and commitment therapy versus traditional cognitive behavioral therapy: A systematic review and meta-analysis of current empirical evidence. International Journal of Psychology and Psychological Therapy. 2012; 12(2): 333-357. 30. Lundgren T, Dahl J, Yardi N, Melin L. Acceptance and Commitment Therapy and yoga for drug-refractory epilepsy: a randomized controlled trial. Epilepsy Behav. 2008; 13(1):102-8. 31. Wu LM, Sheen JM, Shu HL, Chang SC, Hsiao CC. Predictors of anxiety and resilience in adolescents undergoing cancer treatment. J Adv Nurs. 2013; 69(1):158-66. 32. Wetherell JL, Afari N, Rutledge T, Sorrell JT, Stoddard JA, Petkus AJ, et al. A randomized, controlled trial of acceptance and commitment therapy and cognitive-behavioral therapy for chronic pain. Pain. 2011; 152(9):2098-107. 33. Forman EM, Herbert JD, Moitra E, Yeomans PD, Geller PA. A randomized controlled effectiveness trial of acceptance and commitment therapy and cognitive therapy for anxiety and depression. Behav Modif. 2007; 31(6):772-99. 34. Feros DL, Lane L, Ciarrochi J, Blackledge JT. Acceptance and Commitment Therapy (ACT) for improving the lives of cancer patients: a preliminary study. Psychooncology. 2013; 22(2):459-64. 35. Demehri F, Honarmand MM, Yavari AH. Depression and obsessive-compulsive as antecedent of guilt feeling and anxiety as consequences of it in university girl students. Woman and Culture. 2011; 2(6): 25-36. 36. Kaviani H, Mousavi AS. Psychometric properties of the Persian version of Beck Anxiety Inventory (BAI). Tehran Univ Med J. 2008; 66 (2):136-140. 37. Wetherell JL, Gatz M. The Beck Anxiety Inventory in older adults with generalized anxiety disorder. J Psychopathol Behav Assess. 2005; 27(1):17-24. 38. Lindfors P, Unge P, Arvidsson P, Nyhlin H, Björnsson E, Abrahamsson H, et al. Effects of gut-directed hypnotherapy on IBS in different clinical settings-results from two randomized, controlled trials. Am J Gastroenterol. 2012; 107(2):276-85. 39. Gillanders D, Ferreira NB, Angioni E, Carvalho SA, Eugenicos MP. An implementation trial of ACT-based bibliotherapy for irritable bowel syndrome. Journal of Contextual Behavioral Science. 2017; 6(2):172-7. 40. Ferreira NB, Gillanders D, Morris PG, Eugenicos M. Pilot study of acceptance and commitment therapy for irritable bowel syndrome: A preliminary analysis of treatment outcomes and processes of change. Clinical Psychologist. 2017. https://doi.org/10.1111/cp.12123 41. Taheri M, Yaryari F, Molavi M. The effect of therapeutic touch on anxiety patients with irritable bowel syndrome. Complementary Medicine journal. 2013; 3 (1): 406-417. 42. Fadgyas-Stanculete M, Buga AM, Popa-Wagner A, Dumitrascu DL. The relationship between irritable bowel syndrome and psychiatric disorders: from molecular changes to clinical manifestations. J Mol Psychiatry. 2014; 2(1):4. Int J Med Invest 2019; vol 8; num 1; 19-30 http://www.intjmi.com 43. Mohamadi J, Mir Drikvand F, Azizi A. Efficacy of Mindfulness on Anxiety and Depression in Patients with Irritable Bowel Syndrome. J Mazandaran Univ Med Sci. 2015; 25 (130): 52-61. 44. Gaylord SA, Palsson OS, Garland EL, Faurot KR, Coble RS, Mann JD, et al. Mindfulness training reduces the severity of irritable bowel syndrome in women: results of a randomized controlled trial. Am J Gastroenterol. 201; 106(9):1678-88. 45. Zernicke KA, Campbell TS, Blustein PK, Fung TS, Johnson JA, Bacon SL, Carlson LE. Mindfulness-based stress reduction for the treatment of irritable bowel syndrome symptoms: a randomized wait-list controlled trial. Int J Behav Med. 2013; 20(3):385-96. 46. Dehkordy P, Adibi P, Qhomrani A. Effectiveness of cognitive-behavioral therapy combined with drug therapy on quality of life, frequency and severity of symptoms in patients with irritable bowel syndrome. Journal of Kerman University of Medical Sciences. 2011; 19 (1): 94-103. 47. Mönnikes H. Quality of life in patients with irritable bowel syndrome. J Clin Gastroenterol. 2011; 45 Suppl:S98-101. 48. Zomorrodi S, Rasulzadeh Tabatabaee SK, Arbabi M, Azad Falah P, Ebrahimi Daryani N. Comparison of the Effectiveness of Cognitive-Behavioral Therapy and Mindfulness-Based Therapy on Improving Quality of Life in Patients with Irritable Bowel Syndrome. Biomedical & Pharmacology Journal. 2014; 7(1): 63-74. 49. Lotfi Kashani F, Behzadi P. Help me Effectiveness of cognitive-behavioral group therapy on the quality of life and anxiety of irritable bowel patients. Medical Sciences Journal of Islamic Azad University. 2012; 22 (4): 301-306. 50. Bravo Ferreira N, Eugenicos M, Graham Morris P, Gillanders D. Using acceptance and commitment therapy in irritable bowel syndrome. Gastrointestinal Nursing. 2011; 9(9): 28-35. 51. Rezaei S, Hajizadeh M, Kazemi A, Khosravipour M, Khosravi F, Rezaeian S. Determinants of health-related quality of life in Iranian adults: evidence from a cross-sectional study. Epidemiol Health. 2017; 39:e2017038. 52. Hayes SC. Acceptance and Commitment Therapy, Relational Frame Theory, and the Third Wave of Behavioral and Cognitive Therapies - Republished Article. Behav Ther. 2016; 47(6):869-885.