- Taubner, S., Ioannou, Y., Saliba, A., Sales, C. M., Volkert, J., Protić, S., ... & Heinonen, E. (2023). Mediators of outcome in adolescent psychotherapy and their implications for theories and mechanisms of change: a systematic review. European Child & Adolescent psychiatry, 1-38.
- Orlinsky, D. E., Messina, I., Hartmann, A., Willutzki, U., Heinonen, E., Rønnestad, M. H., ... & Schröder, T. (2023). Ninety psychotherapy training programmes across the globe: Variations and commonalities in an international context. Counselling and Psychotherapy Research.
- Kuzminskaite, E., Gathier, A. W., Cuijpers, P., Penninx, B. W., Ammerman, R. T., Brakemeier, E. L., ... & Vinkers, C. H. (2022). Treatment efficacy and effectiveness in adults with major depressive disorder and childhood trauma history: a systematic review and meta-analysis. The Lancet Psychiatry.
- Heinonen, E., Knekt, P., & Lindfors, O. (2022). What works for whom: Patients' psychological resources and vulnerabilities as common and specific predictors of working alliance in different psychotherapies. Frontiers in Psychiatry, 13, 848408.
- Stenius, J., Heinonen, E., Lindfors, O., Holma, J., & Knekt, P. (2022). Ego Impairment Index (EII‐2) as a predictor of outcome in short‐and long‐term psychotherapy during a 5‐year follow‐up. Journal of Clinical Psychology, 78(9), 1739-1751.
- Mestre, J. M., Taubner, S., Mota, C. P., Rangel Henriques, M., Saliba, A., Heinonen, E., ... & Protić, S. (2022). Theories of change and mediators of psychotherapy effectiveness in adolescents with externalising behaviours: a systematic review. Frontiers in Psychiatry, 12, 730921.
- Heinonen, E., Orlinsky, D. E., Willutzki, U., Rønnestad, M. H., Schröder, T., Messina, I., ... & Hartmann, A. (2022). Psychotherapist trainees’ quality of life: Patterns and correlates. Frontiers in Psychology, 13, 864691.
- Volkert, J., Taubner, S., Barkauskiene, R., Mestre, J. M., Sales, C. M., Thiele, V., ... & Heinonen, E. (2021). Mediators and theories of change in psychotherapy for young people with personality disorders: a systematic review protocol. Frontiers in Psychology, 12, 703095.
- Alanne, C., Heinonen, E., Knekt, P., Rissanen, J., Virtala, E., & Lindfors, O. (2021). Predicting improvement of work ability in modalities of short‐and long‐term psychotherapy: The differential impact of reflective ability and other aspects of patient suitability. Journal of Clinical Psychology, 77(9), 1905-1920.
- Conejo-Cerón, S., Taubner, S., Heinonen, E., Adler, A., Barkauskiene, R., Di Giacomo, D., ... & Moreno-Peral, P. (2021). Mediators in psychological treatments for anxiety and depression in adolescents and young people: a protocol of a systematic review. Frontiers in Psychology, 12, 708436.
- Stenius, J., Knekt, P., Heinonen, E., Holma, J., Antikainen, R., & Lindfors, O. (2021). Predicting the working alliance over the course of long-term psychodynamic psychotherapy with the Rorschach Ego Impairment Index, self-reported defense style, and performance-based intelligence: An evaluation of three methodological approaches. Psychoanalytic Psychology, 38(1), 58.
- Oddli, H. W., Heinonen, E., Hau, S., Nielsen, J., Esterhazy, R., Hoff, C. H., & Strømme, H. (2021). Learning Processes and Acquisition of Knowledge and Skills in Training and Supervision of Psychotherapy and Counselling: A Study Protocol for a Scoping Review. Frontiers in Psychology, 12, 718314.
- Taubner, S., Saliba, A., Heinonen, E., Protić, S., Volkert, J., Adler, A., ... & Sales, C. M. (2021). Mediators and theories of change in psychotherapy with adolescents: a systematic review protocol. BMJ Open, 11(3), e042411.
- Gómez Penedo, J. M., Babl, A., Krieger, T., Heinonen, E., & Flückiger, C. (2020). Interpersonal agency as predictor of the within-patient alliance effects on depression severity. Journal of Consulting and Clinical Psychology, 88(4), 338-
- Orlinsky, D. E., Ronnestad, M. H., Hartmann, A., Heinonen, E., & Willutzki, U. (2020). The personal self of psychotherapists: Dimensions, correlates, and relations with clients. Journal of Clinical Psychology, 76, 461-475.
- Heinonen, E. & Pos, A. E. (2020) The role of pre-treatment interpersonal problems for in-session emotional processing and long-term outcome in emotion-focused psychotherapy. Psychotherapy Research. DOI: 10.1080/10503307.2019.163077
- Heinonen, E. & Nissen-Lie, H. A. (2020) The professional and personal characteristics of effective psychotherapists: a systematic review. Psychotherapy Research. DOI: 10.1080/10503307.2019.162036
- Savander, E. È., Weiste, E., Hintikka, J., Leiman, M., Valkeapää, T., Heinonen, E. O., & Peräkylä, A. (in press). Offering patients opportunities to reveal their subjective experiences in psychiatric assessment interviews. Patient Education and Counseling.
- Knekt, P., Lindfors, O., Heinonen, E., Maljanen, T., Virtala, E., & Härkänen, T. (in press). The effectiveness of three psychotherapies of different type and length in the treatment of patients suffering from anxiety disorder. In M. Ochs, M., Borcsa, J. Scheitzer (eds.), Linking Systemic Research and Practice – Innovations in Paradigms, Strategies and Methods. Cham: Springer International.
- Lindfors, O., & Heinonen, E. (2019). Psykodynaamisen psykoterapian vaikuttavuus. [The effectiveness of psychodynamic psychotherapy: a review.] Finnish Medical Journal, 74, 739-745.
- Heinonen, E., Knekt, P., Härkänen, T., Virtala, E., & Lindfors, O. (2018a). Association of early childhood adversities with mental disorders, psychological functioning, and suitability for psychotherapy in adulthood. Psychiatry Research, 264, 366-373.
- Heinonen, E., Knekt, P., Härkänen, T., Virtala, E., & Lindfors, O. (2018b). Childhood adversities as predictors of improvement in psychiatric symptoms and global functioning in solution-focused and short- and long-term psychodynamic psychotherapy during a 5-year follow-up. Journal of Affective Disorders, 235, 525-534.
- Knekt, P., Heinonen, E., & Lindfors, O. (2018). Effectiveness of long-term psychodynamic psychotherapy and psychoanalysis 5 years after ending psychoanalysis: minor differences in psychiatric symptoms and work ability. Neurology, Psychiatry and Brain Research, 30, 163-166.
- Heinonen, E., Heiskanen, T., Lindfors, O., Härkäpää, K., & Knekt, P. (2017). Dispositional optimism as predictor of outcome in short- and long-term psychotherapy. Psychology & Psychotherapy: Theory, Research, and Practice, 90, 279-298.
- Knekt, P., Lindfors, O., Keinänen, M., Heinonen, E., Virtala, E., & Härkänen, T. (2017). The prediction of the level of personality organization on reduction of psychiatric symptoms and improvement of work ability in short- versus long-term psychotherapies during a 5-year follow-up. Psychology & Psychotherapy: Theory, Research, and Practice, 90, 353-376.
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Heinonen, E., Selinheimo, S., Pesonen, A.-K., Paunio, T., Lipsanen, J., Melartin, T., Lindblom-Ylänne, S., & Lindfors, O. (2017). Psykoterapeuttikoulutuksia tutkimalla vaikuttavampaa opetusta ja hoitoa? [Enhancing the development and outcomes of psychotherapy via studying psychotherapy trainees]. Duodecim [publication of the Finnish Medical Association], 133, 1790-7.
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Heinonen, E., Kurri, K., & Melartin, T. (2016). Soveltuuko psykoterapia potilaalleni? [Is psychotherapy suitable for my patient?]. Finnish Medical Journal, 71, 1172-1176.
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Ollila, P., Lindfors, O., Heinonen, E., & Knekt, P. (2016). Patients' interpersonal problems as predictors of working alliance in long-term psychotherapies. Psychiatry Research, 30, 110-117.
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Knekt, P., Heinonen, E., Härkäpää, K., Järvikoski, A., Virtala, E., Rissanen, J., Lindfors, O., & the Helsinki Psychotherapy Study Group (2015). Randomized trial on the effectiveness of long- and short-term psychotherapy on psychosocial functioning and quality of life during a 5-year follow-up. Psychiatry Research, 229, 381-388.
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Orlinsky, D. E., Heinonen, E., & Hartmann, A. (2015). Psychotherapy process research. In J. D. Wright (ed.), International Encyclopedia of Social and Behavioral Sciences (pp. 515-520) (2nd ed.). Oxford: Elsevier.
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Heinonen, E., Knekt, P., Jääskeläinen, T., & Lindfors, O. (2014). Therapists’ professional and personal characteristics as predictors of outcome in long-term psychodynamic psychotherapy and psychoanalysis. European Psychiatry, 29, 265-274.
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Heinonen, E., Lindfors, O., Härkänen, T., Virtala, E., Jääskeläinen, T., & Knekt, P. (2014). Therapists’ professional and personal characteristics as predictors of working alliance in short-term and long-term psychotherapies. Clinical Psychology & Psychotherapy, 21, 475-494.
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Lindfors, O., Knekt, P., Heinonen, E., Härkänen, T., Virtala, E. & the Helsinki Psychotherapy Study Group (2014). The effectiveness of short- and long-term psychotherapy on personality functioning during a 5-year follow-up. Journal of Affective Disorders, 152, 202-211.
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Heinonen, E., & Orlinsky, D. E. (2013). Psychotherapists' personal identities, theoretical orientations, and professional relationships: Elective affinity and role adjustment as modes of congruence. Psychotherapy Research, 23, 718-731.
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Rosenström, T., Jokela, M., Hintsanen, M., Josefsson, K., Juonala, M., Kivimäki, M., Pulkki-Råback, L., Viikari, J. S. A., Hutri-Kähönen, N., Heinonen, E., Raitakari, O. T. & Keltikangas-Järvinen, L. (2013). Body-image dissatisfaction is strongly associated with chronic dysphoria. Journal of Affective Disorders, 150, 253-260.
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Lindfors, O., Knekt, P., Heinonen, E., & Virtala, E. (2013). Self-concept and quality of object relations as predictors of outcome in short- and long-term psychotherapy. Journal of Affective Disorders, 152, 202-211.
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Heinonen, E., Lindfors, O., Laaksonen, M. & Knekt, P. (2012). Therapists’ professional and personal characteristics as predictors of outcome in short- and long-term psychotherapy. Journal of Affective Disorders, 138, 301-312.
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Knekt, P., Laaksonen, M.A., Härkänen, T., Maljanen, T., Heinonen, E., Virtala, E. & Lindfors, O. (2012). The Helsinki Psychotherapy Study: effectiveness, sufficiency, and suitability of short- and long-term psychotherapy. In R. Levy, H. Kächele, S. Ablon (eds.), Psychodynamic Psychotherapy Research: Evidence-Based Practice and Practice-Based Evidence (pp. 71-94). New York: Humana Press.
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Mizobuchi, S., Terasaki, S., Häkkinen, J., Heinonen, E., Bergquist, J. & Chignell, M. (2008). The effect of stereoscopic viewing in a word-search task with a layered background. Journal of the Society for Information Display, 16, 1105-1113.