Paulo P.P. Machado is Professor of Clinical Psychology at the School of Psychology, University of Minho in Portugal. He received his Ph.D. from the University of California, Santa Barbara in 1993, and subsequently served on the faculties of University of Porto and the University of Minho. He has been Invited Professor at the University of Granada, Huelva and Santiago (Spain), Federal de Pernanbuco and Católica de Pelotas (Brazil); and Simon Fraser University (Canada).
His academic career has been devoted to studying the effectiveness of psychotherapy, refinement of methodologies in outcome treatment monitoring in mental health, and the development of tailored intervention and prevention program for eating disorders and obesity. His current research aims at developing (1) models to identify environmental, and psychosocial factors that are associated with treatment response; and the course of recovery; (2) ways of tailoring psychological interventions to the individual needs (e.g., stepped care approach); and, (3) strategies that go beyond the initial level of treatment and focus on post treatment care.
Dr Machado is the Past-President of the Society for Psychotherapy, and was Editor of the Journal Psychotherapy Research. He is Fellow of the Academy for Eating Disorders, Past-President of the Eating Disorder Research Society, of the Portuguese Society for the Study of Eating Disorders.
Psychotherapy research
Eating dIsorders
Anxiety disorders
Selected publications
Machado, P.P., Machado B.C., Gonçalves, S., & Hoek, H. (2007). The prevalence of eating disorders not other wise specified. International Journal of Eating Disorders, 40, 212 - 217. DOI
Machado, P.P., Gonçalves, S., & Hoek, H. (2013). DSM-5 reduces the proportion of EDNOS cases: Evidence from community samples. International Journal of Eating Disorders, 46, 60-65. DOI
Vaz, A., Conceição, E. & Machado, PP. (2013). Guided self-help CBT treatment for Bulimic Disorders: Effectiveness and clinical significant change. Psychotherapy Research, 23, 324-332. DOI
Vaz, A., Conceição, E. & Machado, PP. (2014). Early response as a predictor of success in guided self-help treatment for bulimic disorders. European Eating Disorders Review, 22, 59-65. DOI
Machado, PP, & Fassnacht, D. (2015). The Portuguese version of the Outcome Questionnaire (OQ-45): Normative data, reliability and clinical significance cut-offs scores. Psychology and Psychotherapy: Theory, Research and Practice, 88, 427–437.
DOI
Machado, P. P. P., Grilo, C. M., & Crosby, R. D. (2018). Replication of a Modified Factor Structure for the Eating Disorder Examination-Questionnaire: Extension to Clinical Eating Disorder and Non-clinical Samples in Portugal. European Eating Disorders Review, 26(1), 75–80. DOI
Vieira, A. I., Gonçalves, M., Machado, B. C., Rodrigues, T., Machado, P. P. P., Brandão, I., … Gonçalves, S. (2018). Psychometric properties of the Portuguese version of the Invalidating Childhood Environment Scale. Eating and Weight Disorders - Studies on Anorexia, Bulimia and Obesity DOI
Vieira, A. I., Machado, B. C., Moreira, C. S., Machado, P. P. P., Brandão, I., Roma-Torres, A., & Gonçalves, S. (2018). Eating disorders and non-suicidal self-injury: Structural equation modelling of a conceptual model. European Eating Disorders Review, 26(5), 431–437. article. DOI
Santos, I. F., Machado, P. P. P., & Esteves, F. (2018). Development and validation of the Portuguese version of the Eating Disorder Diagnostic Scale. Ansiedad Y Estrés. DOI
Peixoto, M. M., Pires, I., Biscaia, M. S. & Machado, P. P. P. (2018): Sexual Self-Esteem, Sexual Functioning and Sexual Satisfaction in Portuguese Heterosexual University Students, Psychology & Sexuality, DOI
Peixoto, M. M., Gomes, H., Correia, A., Pires, I., Pereira, T., & Machado, P. P. P. (2018). Translation and validation of the Portuguese version of the Sexual Desire Inventory-2: assessing gender differences. Sexual and Relationship Therapy, 1–14. JOUR. DOI
Conceição, E., Pinto-Bastos, A., de Lourdes, M., Brandão, I., Teixeira, C., & Machado, P. P. P. (2018). Psychological, behavioral and weight-related aspects of patients undergoing reoperative bariatric surgery after gastric band: Comparison with primary surgery patients. Surgery for Obesity and Related Diseases. DOI
Other publications
Machado, P.P., Machado B.C., Gonçalves, S., & Hoek, H. (2007). The prevalence of eating disorders not other wise specified. International Journal of Eating Disorders, 40, 212 - 217. DOI
Machado, P.P., Gonçalves, S., & Hoek, H. (2013). DSM-5 reduces the proportion of EDNOS cases: Evidence from community samples. International Journal of Eating Disorders, 46, 60-65. DOI
Vaz, A., Conceição, E. & Machado, PP. (2013). Guided self-help CBT treatment for Bulimic Disorders: Effectiveness and clinical significant change. Psychotherapy Research, 23, 324-332. DOI
Vaz, A., Conceição, E. & Machado, PP. (2014). Early response as a predictor of success in guided self-help treatment for bulimic disorders. European Eating Disorders Review, 22, 59-65. DOI
Machado, PP, & Fassnacht, D. (2015). The Portuguese version of the Outcome Questionnaire (OQ-45): Normative data, reliability and clinical significance cut-offs scores. Psychology and Psychotherapy: Theory, Research and Practice, 88, 427–437.
DOI
Machado, P. P. P., Grilo, C. M., & Crosby, R. D. (2018). Replication of a Modified Factor Structure for the Eating Disorder Examination-Questionnaire: Extension to Clinical Eating Disorder and Non-clinical Samples in Portugal. European Eating Disorders Review, 26(1), 75–80. DOI
Vieira, A. I., Gonçalves, M., Machado, B. C., Rodrigues, T., Machado, P. P. P., Brandão, I., … Gonçalves, S. (2018). Psychometric properties of the Portuguese version of the Invalidating Childhood Environment Scale. Eating and Weight Disorders - Studies on Anorexia, Bulimia and Obesity DOI
Vieira, A. I., Machado, B. C., Moreira, C. S., Machado, P. P. P., Brandão, I., Roma-Torres, A., & Gonçalves, S. (2018). Eating disorders and non-suicidal self-injury: Structural equation modelling of a conceptual model. European Eating Disorders Review, 26(5), 431–437. article. DOI
Santos, I. F., Machado, P. P. P., & Esteves, F. (2018). Development and validation of the Portuguese version of the Eating Disorder Diagnostic Scale. Ansiedad Y Estrés. DOI
Peixoto, M. M., Pires, I., Biscaia, M. S. & Machado, P. P. P. (2018): Sexual Self-Esteem, Sexual Functioning and Sexual Satisfaction in Portuguese Heterosexual University Students, Psychology & Sexuality, DOI
Peixoto, M. M., Gomes, H., Correia, A., Pires, I., Pereira, T., & Machado, P. P. P. (2018). Translation and validation of the Portuguese version of the Sexual Desire Inventory-2: assessing gender differences. Sexual and Relationship Therapy, 1–14. JOUR. DOI
Conceição, E., Pinto-Bastos, A., de Lourdes, M., Brandão, I., Teixeira, C., & Machado, P. P. P. (2018). Psychological, behavioral and weight-related aspects of patients undergoing reoperative bariatric surgery after gastric band: Comparison with primary surgery patients. Surgery for Obesity and Related Diseases. DOI
Gonçalves, S. Ferreira, R. Conceição, E. Silva, C. Machado, P., Boyland, E. & Vaz. (2018). The impact of exposure to cartoons promoting healthy eating on children’s food preferences and choices. Journal of Nutrition and Educational Behavior. DOI
Lopes, R. T., Gonçalves, M. M., Sinai, D., & Machado, P. P. (2018). Clinical outcomes of psychotherapy dropouts: Does dropping out of psychotherapy necessarily mean failure? Revista Brasileira De Psiquiatria, 40(2), 123-127. DOI
Vieira, A. I., Machado, B. C., Machado, P. P. P., Brandão, I., Roma-Torres, A., & Gonçalves, S. (2017). Putative Risk Factors for Non-Suicidal Self-Injury in Eating Disorders. European Eating Disorders Review, 25(6). DOI
Conceição, E. M., Mitchell, J. E., Machado, P. P. P., Vaz, A. R., Pinto-Bastos, A., Ramalho, S., … Freitas, A. C. (2017). Repetitive eating questionnaire [Rep(eat)-Q]: Enlightening the concept of grazing and psychometric properties in a Portuguese sample. Appetite, 117, 351–358. DOI
Conceição, E. M., Gomes, F. V. S., Vaz, A. R., Pinto-Bastos, A., & Machado, P. P. P. (2017). Prevalence of eating disorders and picking/nibbling in elderly women. International Journal of Eating Disorders, 50, 793–800. DOI
Gonçalves, S., Lima, V., Machado, B. C., & Machado, P. (2017). Maternal-Child Feeding Practices and Associations with Maternal and Child Characteristics. Nutrition Today, 52(5). DOI
Pinto-Bastos, A., Conceição, E. M., & Machado, P. P. P. (2017). Reoperative Bariatric Surgery: a Systematic Review of the Reasons for Surgery, Medical and Weight Loss Outcomes , Relevant Behavioral Factors. Obesity Surgery, 27, 2707–2715. DOI
Pinto-Bastos, A., Conceição, E. M., & Machado, P. P. P. (2017). Correction to: Reoperative Bariatric Surgery: a Systematic Review of the Reasons for Surgery, Medical and Weight Loss Outcomes, and Relevant Behavioral Factors. Obesity Surgery, 27(11), 3069–3072. article. DOI
Machado, P. P. P., Grilo, C. M., & Crosby, R. D. (2017). Evaluation of the DSM-5 Severity Indicator for Anorexia Nervosa, European Eating Disorders Review 25, 221–223. DOI
Conceição, E. M., Mitchell, J. E., Pinto-Bastos, A., Arrojado, F., Brandão, I., & Machado, P. P. P. (2016). Stability of problem eating behaviors and weight loss trajectories following bariatric surgery: A longitudinal observational study. Surgery for Obesity and Related Diseases. DOI
Conceição, E. M., Machado, P. P. P., Vaz, A. R., Pinto-Bastos, A., Ramalho, S., Silva, C., & Arrojado, F. (2016). APOLO-Bari, an internet-based program for longitudinal support of bariatric surgery patients: study protocol for a randomized controlled trial. Trials, 17(1), 1–14. DOI
Gonçalves, S., Machado, B. C., Martins, C., Hoek, H. W., & Machado, P. P. P. (2016). Retrospective Correlates for Bulimia Nervosa: A Matched Case-Control Study. European Eating Disorders Review, 24: 197-205. DOI
Gonçalves, S., Machado, B., Silva, C., Crosby, R. D., Lavender, J. M., Cao, L., & Machado, P. P. P. (2016). The Moderating Role of Purging Behaviour in the Relationship Between Sexual/Physical Abuse and Nonsuicidal Self-Injury in Eating Disorder Patients. European Eating Disorders Review, 24(2), 164–168. DOI
Gonçalves, S., Machado, B., Silva, C., Crosby, R. D., Lavender, J. M., Cao, L., & Machado, P. P. P. (2016). The Moderating Role of Purging Behaviour in the Relationship Between Sexual/Physical Abuse and Nonsuicidal Self-Injury in Eating Disorder Patients. European Eating Disorders Review, 24(2), 164–168. DOI
Ramalho, S, Bastos, AP, Silva, C, Vaz, AR, Brandão, I, Machado, P, Conceição, E. (2015). Excessive Skin and Sexual function: Relationship with Psychological Variables and Weight Regain in women after Bariatric Surgery. Obesity Surgery, 25,1149–1154. DOI
Strauss, B. M., Shapiro, D. A., Barkham, M., Parry, G., & Machado, P. P. P. (2015). “The Times They Are a-Changin’”*: 25 years of Psychotherapy Research – A European and Latin American perspective. Psychotherapy Research, 25, 294-308. DOI
Lopes, R. T., Gonçalves, M.M., Sinai, D., & Machado, P. P. (2015). Predictors of dropout in a controlled clinical trial of psychotherapy for moderate depression. International Journal of Clinical and Health Psychology, 15, 76–80. DOI
Coutinho J., Ramos A., Maia L., Castro L., Conceição E., Geliebter A., Machado P. P, Gonçalves O. & Sampaio A. (2015). Volumetric Alterations in the Nucleus Accumbens and Caudate Nucleus in Bulimia Nervosa: a Structural Magnetic Resonance Imaging Study. International Journal of Eating Disorders, 48, 206-214. DOI
Silva, C., Fassnacht, D., Ali, K., Gonçalves, S., Conceição, E., Vaz, A., Crosby, R., Machado, PP (2015). Promoting Health Behaviour in Portuguese Children via Short Message Service (SMS): The Efficacy of a Text-Messaging Program. Journal of Health Psychology, 20, 806-815. DOI
Lopes, R.T., Gonçalves, M.M., Fassnacht, D., Machado, P. P., & Sousa, I. (2015). Time to Improve and Recover from Depressive Symptoms and Interpersonal Problems in a Clinical Trial. Clinical Psychology and Psychotherapy, 22, 97-105. DOI
Fassnacht, D.B., Ali, K., Silva, C.B., Gonçalves, S., & Machado, P.P. (2015). Use of text messaging services to promote health behaviors in children: a pilot study. Journal of Nutrition Education and Behavior, 47, 75-80. DOI
Machado, BC, Gonçalves, S., Martins, C., Roma-Torres, A., Brandão, I., & Hoek, H., Machado, P.P. (2015). Anorexia nervosa versus bulimia nervosa: differences based on retrospective correlates in a case–control study. Eating and Weight Disorders, 21, 185-197. DOI
Conceição, E., Mitchell, J. E., Engle, S., Machado, P. P. P., Lancaster, K., & Wonderlich, S. (2014). What is “Grazing”? Reviewing its Definition, Frequency, Clinical Characteristics and Impact on Bariatric Surgery Outcomes, and Proposing a Standardized Definition. Surgery for Obesity and Related Diseases, 10, 973–982. doi:10.1016/j.soard.2014.05.002 DOI
Conceição E, Mitchell JE, Vaz, AR, Bastos AP, Ramalho, S, Silva, C, Cao L, Brandão I, Machado PP. (2014). The presence of maladaptive eating behaviors after bariatric surgery: Importance of picking or nibbling on weight regain. Eating behaviors, 15, 558-562. DOI
Conceição E, Pinto-Basto, A, Brandão, I, Vaz, A., Ramalho, S.E. & Machado PP. (2014). Loss of control eating and weight outcomes after bariatric surgery: a study with a Portuguese sample. Eating and Weight Disorders, 19, 103-109. DOI
Gonçalves, S. F., Machado, B. C., Martins, C., Brandão, I., Roma Torres, A., & Machado, P. (2014). Dysregulated behaviours in bulimia nervosa-A case-control study. Clinical Psychologist, 18(2), 55–62. DOI
Gonçalves, S., Machado, B.C., Martins, C., & Machado, P.P.P. (2014). Eating and weight/shape criticism as a specific life-event related to bulimia nervosa: A case control study. Journal of Psychology: Interdisciplinary and Applied, 148,61-72. DOI
Lopes, R., Gonçalves, M. M., Machado, P. P. P., Fassnacht, D. B., & Sousa, I. (2014). Long-term effects of psychotherapy for moderate depression: A comparative study of Narrative therapy with cognitive-behavior therapy. Journal of Affective Disorders, 67,64-73. DOI
Lopes, R.T., Gonçalves, M.M., Machado, P. P., Bento, T., Salgado, J. Sinai, D. & Lipsitz, J (2014). Narrative Therapy vs. Cognitive-Behavioral Therapy for moderate depression: Empirical evidence from a controlled clinical trial, Psychotherapy Research, 24(6):662-674. DOI
Machado PP, Martins, C, Vaz, A., Conceição E, Pinto-Basto, Gonçalves, S. (2014) Eating Disorder Examination Questionnaire (EDE-Q): Psychometric Properties and Norms for the Portuguese Population, European Eating Disorders Review, 22, 448–453. DOI
Machado, B. C., Gonçalves, S. F., Martins, C., Hoek, H. W., & Machado, P. P. (2014). Risk factors and antecedent life events in the development of anorexia nervosa: a portuguese case-control study. European Eating Disorders Review, 22(4), 243–51. DOI
Ribeiro, M., Conceição, E., Vaz, A., & Machado, PP. (2014). The prevalence of Binge Eating Disorder in a Sample of College Students in the North of Portugal. European Eating Disorders Review, 22, 185-190. DOI
Vaz, A., Conceição, E. & Machado, PP. (2014). Early response as a predictor of success in guided self-help treatment for bulimic disorders. European Eating Disorders Review, 22, 59-65. DOI
Melo, W. V., Bergmann, C., Neufeld, C. B., Machado, P. P. P., & Conceição, E. M. (2014). A terapia cognitivo-comportamental e a cirurgia bariátrica como tratamentos para a obesidade, Revista Brasileira de Terapias Cognitivas, 10(2), 84-92. https://dx.doi.org/10.5935/1808-5687.20140014 DOI
Vaz, A., Conceição, E. & Machado, PP. (2013). Guided self-help CBT treatment for Bulimic Disorders: Effectiveness and clinical significant change. Psychotherapy Research, 23, 324-332. DOI
Tasca, G, & Machado, PP (2013). Eating Disorder Psychotherapy Research - Beyond the Brand: Introduction to a Special Section. Psychotherapy Research, 23, 247-251. DOI
Conceição, E., Vaz, A., Pinto-Bastos, A., Ramos, A., & Machado PP (2013). The development of eating disorders after bariatric Surgery. Eating Disorders: The Journal of Treatment and Prevention, 21, 275–282. DOI
Gonçalves, S. F., Machado, B. C., Martins, C., Brandão, I., Roma Torres, A., & Machado, P. (2013). Dysregulated behaviours in bulimia nervosa-A case-control study. Clinical Psychologist, 18, 55-62. doi:10.1111/cp.12013 DOI
2024/2025
Avaliação e Intervenção Clínica com Adultos II
Master
Processos Transdiagnósticos em Psicopatologia
Master
Projeto de Investigação em Psicologia Clínica e Psicoterapia de Adultos
Master
Temas Avançados em Psicoterapia e Psicopatologia
Doctoral Program
