Publications by Scientists at Portland Psychotherapy

Below is a summary of publications at least partially funded by or conducted at Portland Psychotherapy (bold indicates author was Portland Psychotherapy staff while the work was conducted):

In Press

Vetrova, M.V., Cheng, D.M., Bendiks, S., Gnatienko, N., Lloyd-Travaglini, C., Jian, W., Luoma, J., Blokhina, E., Krupitsky, E., Lioznov, D. Ekstrand, M.L., Raj, A., Samet, J., & Lunze, K. (in press). HIV and substance use stigma, intersectional stigma and healthcare among HIV-positive PWID in Russia. AIDS and Behavior.

Luoma, J.B., & Chwyl, C. (in press). Interpersonal mechanisms for the maintenance of self-criticism: Expressive suppression, emotion expression, and self-concealment. Current Psychology.

Thompson, B.T., Twohig, M. & Luoma, J.B. (in press). Psychological Flexibility as Shared Process of Change in Acceptance and Commitment Therapy and Exposure and Response Prevention for Obsessive-Compulsive Disorder: A Single Case Design Study. Behavior Therapy. Download pre-print here.


Pilecki, B., Luoma, J.B., Bathje, G.J., Rhea, J., & Fraguada Narloch, V. (2021). Ethical and Legal Issues in Psychedelic Harm Reduction and Integration Therapy. Harm Reduction Journal, 18, 40. Download here.

Lear, M. K., Luoma, J. B., & Chwyl, C. (2021). Shame and experiential avoidance as prospective predictors of client non-disclosure in outpatient psychotherapy. Journal of Contextual Behavioral Science, 19, 36-41.


Lear, M.K., Luoma, J.B. &, Chwyl, C. (2020). The Influence of Self-Criticism and Relationship Closeness on Peer-Reported Relationship Need Satisfaction. Personality and Individual Differences, 110087.

Luoma, J.B., Chwyl, C., Bathje, G.J., Davis, A. K., & Lancelotta, R. (2020). A Meta-Analysis of Placebo-Controlled Trials of Psychedelic-Assisted Therapy. Journal of Psychoactive Drugs, 12, 1-11. Download pre-print here.

Luoma, J.B. & LeJeune, J.T. (2020). Incorporating Affective Science into ACT to Treat Highly Self-Critical and Shame Prone Clients. In M. E. Levin, M. P. Twohig & J. Krafft (Eds.), Innovations in ACT. Oakland, CA: New Harbinger.

Luoma, J.B., Pierce, B., & Levin, M. E. (2020. Experiential avoidance and negative affect as predictors of daily drinking. Psychology of Addictive Behavior, 34(3), 421–433. Download pre-print here.

Luoma, J.B., Davis, A. K., Watts, R., & McCracken, L. (2020). Integrating contextual behavioral science with research on psychedelic assisted therapy: introduction to the special section. Journal of Contextual Behavioral Science, 15, 207-209.

Watts, R., & Luoma, J.B. (2020). The use of the psychological flexibility model to support psychedelic assisted therapy.  Journal of Contextual Behavioral Science, 15, 92-102.


LeJeune, J.T., & Luoma, J.B. (2019). Values in Therapy: A Clinician’s Guide to Helping Clients Explore Values, Increase Psychological Flexibility, and Live a More Meaningful Life . New Harbinger: Oakland, CA.

Luoma, J.B., Subucedo, P., Eriksson, J., Gates, N., & Pilecki, B. (2019). Toward a contextual psychedelic assisted therapy: contextual behavioral science and the third wave of psychedelic research. Journal of Contextual Behavioral Science, 14, 136-145. Download pre-print here.

Luoma, J.B., Chwyl, C., & Kaplan, J. (2019). Substance use and shame: a systematic and meta-analytic review. Clinical Psychology Reviews. Download pre-print here.


Guinther, P. M. (2018). Contextual influence over deriving another’s false beliefs using a relational triangulation perspective taking protocol (RT‐PTP‐M2). Journal of the experimental analysis of behavior110(3), 500-521.

Luoma, J.B., Guinther, P., Lawless DesJardins, N. M., & Vilardaga, R. (2018). Is Shame a Proximal Trigger for Drinking? A Daily Process Study with a Community Sample. Journal of Experimental and Clinical Psychopharmacology, 26(3), 290-301 Download pdf.

Luoma, J. B., Codd, T. R., & Lynch, T. R. (2018). Radically Open Dialectical Behavior Therapy (RO DBT): Shared Features and Differences with ACT, DBT, and CFT. The Behavior Therapist. Download pdf.

Osborne, T., & Luoma, J.B. (2018). Overcoming a Primary Barrier to Practice-Based Research: Access to Independent Ethics Review. Psychotherapy, 55 (3), 255–262. Download pdf.


LeJeune, J.T. & Luoma, J.B. (2017). Using social enterprise concepts to create a sustainable culture to fund research in a fee-for-service setting . In R.T. Codd (Ed.), Practice-Based Research: A Guide for Clinicians. Routledge Press.

Guinther, P. (2017). Contextual influence over deriving others’ true beliefs using a relational triangulation perspective-taking protocol (RT-PTP-M1). Journal of the Experimental Analysis of Behavior, 108(3), 433-456.

Luoma, J.B., Guinther, P., Potter, J., & Cheslock, M. (2017). Experienced-Based Versus Scenario-Based Assessments of Shame and Guilt and Their Relationship to Alcohol Consumption and Problems. Substance Use and Misuse, 52(13), 1692-1700Download pdf.

Luoma, J.B., Hayes, S. C., & Walser, R. (2017). Learning Acceptance and Commitment Therapy: A Skills Training Manual for Therapists (2nd Edition). Authored book and DVD with New Harbinger Press.

Platt, M., Luoma, J.B., & Freyd, J. (2017). Shame and dissociation in survivors of high and low betrayal trauma. Journal of Aggression, Maltreatment & Trauma, 1, 34-49.


Drake., C.E., Timko, C.A., Luoma, J.B. (2016). Exploring an Implicit Measure of Acceptance and Experiential Avoidance of Anxiety. Psychological Record, 66, 463-475.


Thompson, B. T., Luoma, J. B., Terry, C., LeJeune, J., Guinther, P., & Robb, H. (2015). Creating a Peer-Led Acceptance and Commitment Therapy Consultation Group: The Portland Model. Journal of Contextual Behavioral Science, 4, 144-150. Download here.

Levin, M.E., Luoma, J.B. & Haeger, J. (2015). Decoupling as a mechanism of action in mindfulness and acceptance: A literature review. Behavior Modification 39, 870-911. Download here.

Levin, M.E., Luoma, J.B., Vilardaga, R., Lillis, J., Nobles, R. & Hayes, S.C. (2015). Examining the role of psychological inflexibility, perspective taking and empathic concern in generalized prejudice. Journal of Applied Social Psychology, 46, 180-191. Download here.

LeJeune, J.T., & Luoma, J.B. (2015). The Integrated Scientist-Practitioner: A New Model for Combining Research and Clinical Practice in Fee-For-Service Settings. Professional Psychology Research & Practice46(6), 421-428. Download here.

Guinther, P. M. & Dougher, M. J. (2015). The clinical relevance of stimulus equivalence and relational frame theory in influencing the behavior of verbally competent adults. Current Opinion in Psychology, 2, 21-25. Download here.

Luoma, J.B., & Platt, M. (2015). Stigma, Shame, Self-Criticism, and Compassion in Acceptance and Commitment Therapy. Current Opinion in Psychology, 2, 97-101. Download here.

Platt, M. & Freyd, J. J. (2015). Betray my trust, shame on me: Shame, dissociation, fear, and betrayal trauma. Psychological Trauma: Theory, Research, Practice, and Policy.


Bahan, M. J., Cheslock, M. L., Potter, J. E., Guinther, P. M., & Luoma, J. B. (2014). Multi-modal shame assessment predicting alcohol consumption and related problems. Poster presented at the annual meeting of the Western Psychological Association, Portland, OR. Poster available here.

Guinther, P.M. & Dougher, M.J. (2014). Partial contextual control of semantic false memories in the DRIFT paradigm. The Psychological Record, 64, 457-473.

Levin, M.E., Luoma, J.B., Lillis, J., Hayes, S.C. & Vilardaga, R. (2014). Developing a measure of psychological flexibility with stigmatizing thoughts. Journal of Contextual Behavioral Science, 3, 21-26. Download here.

Luoma, J.B., Kulesza, M., Hayes, S. C., Kohlenberg, B., & Larimer, M. (2014). Stigma Predicts Treatment Length in Residential Substance Use Disorder Treatment. American Journal of Drug and Alcohol Abuse, 40(3), 206-212. Download here.

Witkiewitz, K., Warner, K., Sully, B., Barricks, A., Stauffer, C., Steckler, G., Thompson, B., & Luoma, J. (2014). Randomized trial comparing mindfulness based relapse prevention with relapse prevention for women offenders at a residential addiction treatment center.  Substance Use and Misuse, 49, 536-546.


Luoma, J. (2013). Acceptance and mindfulness for undermining stigma. In A. Masuda ( Ed.), Cultural Issues in Acceptance and Mindfulness-Based Approaches. Oakland, CA: New Harbinger.

Luoma, J. B., & Plumb, J. (2013). Improving Therapist Psychological Flexibility While Training Acceptance and Commitment Therapy: A Pilot Study. Cognitive-Behaviour Therapy, 42, 1-8.

Luoma, J.B., Nobles, R. H., Drake, C., E., Hayes, S. C., O-Hair, A., Fletcher, L., & Kohlenberg, B. S. (2013). Self-Stigma in Substance Abuse: Development of a New Measure. Journal of Psychopathology and Behavioral Assessment, 34, 1-12Download here. Download Substance Abuse Self-Stigma measure.

Thompson, B., Luoma, J. B., & LeJeune, J. T. (2013). Using Acceptance and Commitment Therapy to Guide Exposure-Based Interventions for Post Traumatic Stress Disorder. Journal of Contemporary Psychotherapy, 43, 133-140. Download here.


Lundgren, T., Luoma, J.B., Dahl, J., Strosahl, K., Robinson, P., & Melin, L. (2012). The Bull’s-Eye Values Survey: A psychometric evaluation. Cognitive and Behavioral Practice, 19, 518-526.

Luoma, J.B. & Kohlenberg, B. S. (2012). Self-Stigma and Shame in Addictions. In S. C. Hayes & M. Levin (Eds). Mindfulness and Acceptance for Addictive Behaviors (216-238). Oakland: New Harbinger.

Luoma, J. B., & Kohlenberg, B.S., Hayes, S. C., & Fletcher, L. (2012). Slow and Steady Wins the Race: A Randomized Clinical Trial of Acceptance and Commitment Therapy Targeting Shame in Substance Use Disorders. Journal of Consulting and Clinical Psychology, 80, 43-51. Download here.

Luoma, J.B., & Boulanger, J. (2012).Mindfulness in the Treatment of Suicidal Individuals. Cognitive and Behavioral Practice,19, 265-276. Download here.


Luoma, J.B. (2011).Member Update on 2011 NIMH Research Priorities and Advances. The Behavior Therapist, 34, 93-94.

Thompson, B., Terry, C., & Luoma, J. (2011/2012, December/January). Not your mother’s EBT: A look at the past and towards the future. Oregon Psychological Associatin Bulletin. 31(1), 11-13. Download pdf.

Luoma, J. B., Drake, C., Hayes, S. C., Kohlenberg, B. (2011). Substance Abuse and Psychological Flexibility: The Development of a New Measure. Addiction Research and Theory, 19(1), 3-13. Download pdf.Download the Acceptance and Action Questionnaire for Substance Abuse (AAQ-SA). For versions translated to other languages, go here.

Vilardaga, R., Luoma, J.B., Hayes, S.C., Pistorello, J., Levin, M., Hildebrandt, M.J., Kohlenberg, B., Roget, N. & Bond, F.W. (2011). Burnout among the addiction counseling workforce: The differential roles of mindfulness and values-based processes and worksite factors. Journal of Substance Abuse Treatment, 40, 323-335. Download here.


Lillis, J., Luoma, J. B., Levin, M., & Hayes, S. C. (2010). Measuring weight self-stigma: The weight self-stigma questionnaire. Obesity, 18, 971-976. Download pdf.

Drake, C. E., Kellum, K. K., Wilson, K. G., Luoma, J. B., Weinstein, J., & Adams, C. H. (2010). Examining the Implicit Relational Assessment Procedure: Four Pilot Studies. Psychological Record, 60, 81-86. Download pdf.

Luoma, J. B., O’Hair, A. K., Kohlenberg, B. S., Hayes, S. C., Fletcher, L. (2010). The development and psychometric properties of a new measure of perceived stigma toward substance users. Substance Use and Misuse, 45, 47-57. Download pdf.Download the Perceived Stigma of Substance Abuse Scale.

Luoma, J.B. (2010). Substance Abuse Stigma as a Barrier to Treatment and Recovery. In B. A. Johnson (Ed). Addictive Medicine: Science and Practice. New York: Springer. Download pdf – preprint.


Luoma, J. B., & Hayes, S. C. (2009). Cognitive Defusion. In W. O’Donahue, & J. E. Fisher, (Eds.), Empirically supported techniques of cognitive behavioral therapy: A step-by-step guide for clinicians (2nd Ed.). New York: Wiley.


Luoma, J.B., Kohlenberg, B. S., Hayes, S. C., Bunting, K., & Rye, A.K., (2008). Reducing the Self Stigma of Substance Abuse through Acceptance and Commitment Therapy: Model, Manual Development, and Pilot Outcomes. Addiction Research and Theory, 16(2), 149-165. Download pdf. Download the Internalized Stigma of Substance Abuse Scale (ISSA)