dr. T.R. Vaessen (Thomas)

Universitair docent

Over mij

Ik ben assistant professor in mentale weerbaarheid aan de Universiteit van Twente en postdoctoraal onderzoeker aan de KU Leuven. Ik ben geïnteresseerd in hoe mensen met stress omgaan in hun dagelijks leven, en wat dit voor gevolgen heeft voor hun weerbaarheid en de ontwikkeling van psychische klachten. Daarnaast houd ik me bezig met het ontwikkelen van mobiele interventies gericht op het leren omgaan met dagelijkse stressoren.


Medicine & Life Sciences
Ecological Momentary Assessment
Psychological Adaptation


Mijn onderzoek richt zich op de rol van stress en stress herstel in de ontwikkeling van psychopathologie en vroege interventies gericht op coping in de context van stress. Hiertoe maak ik gebruik van experience sampling methodology, passive monitoring, and experimentele labtaken.


Boyette, L. L., Schirmbeck, F., Vermeulen, J. M., van der Ven, E., van Aubel, E. , Vaessen, T., Beijer-Klippel, A., Batink, T., van Winkel, R., van der Gaag, M., de Haan, L., Reininghaus, U., & Myin-Germeys, I. (2024). Neuroticism and Extraversion are modifiable by treatment in individuals at-risk for psychosis or with first-episode psychotic disorder. Personality and individual differences, 216, Article 112404. https://doi.org/10.1016/j.paid.2023.112404
Li, X., Lafit, G., van Aubel, E. , Vaessen, T., Hiekkaranta, A. P., Houben, M., Beijer-Klippel, A., de Haan, L., Schirmbeck, F., Reininghaus, U., & Myin-Germeys, I. (2023). Emotion regulation in daily life in early psychosis: The role of contextual appraisals. Schizophrenia Research, 261, 130-138. https://doi.org/10.1016/j.schres.2023.09.023
Leenaerts, N. , Vaessen, T., Sunaert, S., Ceccarini, J., & Vrieze, E. (2023). How Negative Affect Does and Does Not Lead to Binge Eating — The Importance of Craving and Negative Urgency in Bulimia Nervosa. Journal of Psychopathology and Clinical Science, 132(5), 621-633. https://doi.org/10.1037/abn0000830
Vaessen, T., Reininghaus, U., van Aubel, E., Beijer-Klippel, A., Steinhart, H., Myin-Germeys, I., & Waltz, J. (2023). Neural correlates of daily-life affective stress reactivity in early psychosis: A study combining functional MRI and experience sampling methodology. Schizophrenia Research, 255, 93-101. https://doi.org/10.1016/j.schres.2023.03.038
Kirtley, O. J., Lafit, G. , Vaessen, T., Decoster, J., Derom, C., Gülöksüz, S., De Hert, M., Jacobs, N., Menne-Lothmann, C., Rutten, B. P. F., Thiery, E., van Os, J., van Winkel, R., Wichers, M., & Myin-Germeys, I. (2022). The relationship between daily positive future thinking and past-week suicidal ideation in youth: An experience sampling study. Frontiers in Psychiatry, 13, Article 915007. https://doi.org/10.3389/fpsyt.2022.915007
Ader, L., Schick, A., Simons, C., Delespaul, P., Myin-Germeys, I. , Vaessen, T., & Reininghaus, U. (2022). Positive Affective Recovery in Daily Life as a Momentary Mechanism Across Subclinical and Clinical Stages of Mental Disorder: Experience Sampling Study. JMIR mental health, 9(11), Article e37394. https://doi.org/10.2196/37394
Overige bijdragen

Kirtley, O., Lafit, G., Vaessen, T., Decoster, J., Derom, C., Gülöksüz, S., . . . Myin-Germeys, I. (2022). The relationship between daily positive future thinking and past-week suicidal ideation in youth: An experience sampling study. doi:10.31234/osf.io/dvnb8

Myin-Germeys, I., van Aubel, E., Vaessen, T., Steinhart, H., Klippel, A., Lafit, G., . . . Reininghaus, U. (2022). Efficacy of Acceptance and Commitment Therapy in Daily Life in Early Psychosis: Results from the Multi-Center INTERACT Randomized Controlled Trial. PSYCHOTHERAPY AND PSYCHOSOMATICS, 13 pages. doi:10.1159/000522274

Weermeijer, J., Lafit, G., Kiekens, G., Wampers, M., Eisele, G., Kasanova, Z., . . . Myin-Germeys, I. (2022). Applying multiverse analysis to experience sampling data: Investigating whether preprocessing choices affect robustness of conclusions. BEHAVIOR RESEARCH METHODS, 12 pages. doi:10.3758/s13428-021-01777-1

van Aubel, E., Vaessen, T., van Winkel, R., Lafit, G., Beijer-Klippel, A., Viechtbauer, W., . . . Myin-Germeys, I. (2022). Psychological flexibility and the moderating role of the therapeutic working alliance in Acceptance and Commitment Therapy in Daily Life (ACT-DL) in an early psychosis sample. doi:10.1101/2022.01.19.22269524

Schiweck, C., Gholamrezaei, A., Hellyn, M., Vaessen, T., Vrieze, E., & Claes, S. (2022). Exhausted Heart Rate Responses to Repeated Psychological Stress in Women With Major Depressive Disorder.. Front Psychiatry13, 869608. doi:10.3389/fpsyt.2022.869608

Vaessen, T., Rintala, A., Otsabryk, N., Viechtbauer, W., Wampers, M., Claes, S., & Myin-Germeys, I. (2021). The association between self-reported stress and cardiovascular measures in daily life: A systematic review. PLOS ONE16(11), 28 pages. doi:10.1371/journal.pone.0259557

Myin-Germeys, I., van Aubel, E., Vaessen, T., Steinhart, H., Klippel, A., Lafit, G., . . . Reininghaus, U. (2021). Efficacy of Acceptance and Commitment Therapy in Daily Life (ACT-DL) in early psychosis: Results from the multi-center INTERACT randomized controlled trial. medRxiv. doi:10.1101/2021.05.28.21257986

Velozo, J. D. C., Vaessen, T., Pruessner, J., Van Diest, I., Claes, S., & Myin-Germeys, I. (2021). The repeated Montreal Imaging Stress Test (rMIST): Testing habituation, sensitization, and anticipation effects to repeated stress induction. PSYCHONEUROENDOCRINOLOGY128, 9 pages. doi:10.1016/j.psyneuen.2021.105217

Leenaerts, N., Vaessen, T., Ceccarini, J., & Vrieze, E. (2021). How COVID-19 lockdown measures could impact patients with bulimia nervosa: Exploratory results from an ongoing experience sampling method study. Eating Behaviors41, 1-6. doi:10.1016/j.eatbeh.2021.101505

Klippel, A., Schick, A., Myin-Germeys, I., Rauschenberg, C., Vaessen, T., & Reininghaus, U. (2021). Modelling the temporal interplay between stress and affective disturbances in pathways to psychosis: an experience sampling study. PSYCHOLOGICAL MEDICINE, 10 pages. doi:10.1017/S0033291720004894

Sinnaeve, R., Vaessen, T., van Diest, I., Myin-Germeys, I., van den Bosch, L. M. C., Vrieze, E., . . . Claes, S. (2021). Investigating the stress-related fluctuations of level of personality functioning: A critical review and agenda for future research. CLINICAL PSYCHOLOGY & PSYCHOTHERAPY28(5), 1181-1193. doi:10.1002/cpp.2566

Schneider, M., Vaessen, T., van Duin, E. D. A., Kasanova, Z., Viechtbauer, W., Reininghaus, U., . . . Myin-Germeys, I. (2020). Affective and psychotic reactivity to daily-life stress in adults with 22q11DS: a study using the experience sampling method. JOURNAL OF NEURODEVELOPMENTAL DISORDERS12(1), 11 pages. doi:10.1186/s11689-020-09333-2

Schiweck, C., Claes, S., Van Oudenhove, L., Lafit, G., Vaessen, T., Op de Beeck, G., . . . Vrieze, E. (2020). Childhood trauma, suicide risk and inflammatory phenotypes of depression: Insights from monocyte gene expression. Translational Psychiatry10, 1-12. doi:10.1038/s41398-020-00979-z

van Aubel, E., Bakker, J. M., Batink, T., Michielse, S., Goossens, L., Lange, I., . . . Myin-Germeys, I. (2020). Blended care in the treatment of subthreshold symptoms of depression and psychosis in emerging adults: A randomised controlled trial of Acceptance and Commitment Therapy in Daily-Life (ACT-DL). BEHAVIOUR RESEARCH AND THERAPY128, 16 pages. doi:10.1016/j.brat.2020.103592

Reininghaus, U., Klippel, A., Steinhart, H., Vaessen, T., van Nierop, M., Viechtbauer, W., . . . Myin-Germeys, I. (2019). Efficacy of Acceptance and Commitment Therapy in Daily Life (ACT-DL) in early psychosis: study protocol for a multi-centre randomized controlled trial. TRIALS20(1), 12 pages. doi:10.1186/s13063-019-3912-4

van Duin, E. D. A., Vaessen, T., Kasanova, Z., Viechtbauer, W., Reininghaus, U., Saalbrink, P., . . . Germeys, I. (2019). Lower cortisol levels and attenuated cortisol reactivity to daily-life stressors in adults with 22q11.2 deletion syndrome. Psychoneuroendocrinology106, 85-94. doi:10.1016/j.psyneuen.2019.03.023

Vaessen, T., Viechtbauer, W., van der Steen, Y., Gayer-Anderson, C., Kempton, M., Valmaggia, L., . . . Germeys, I. (n.d.). Recovery from daily-life stressors in early and chronic psychosis. SCHIZOPHRENIA RESEARCH, 1-8. doi:10.1016/j.schres.2019.03.011

Vaessen, T., Steinhart, H., Batink, T., Klippel, A., Van Nierop, M., Reininghaus, U., & Myin-Germeys, I. (2019). ACT in daily life in early psychosis: an ecological momentary intervention approach. PSYCHOSIS-PSYCHOLOGICAL SOCIAL AND INTEGRATIVE APPROACHES11(2), 93-104. doi:10.1080/17522439.2019.1578401

Vaessen, T., Kasanova, Z., Hernaus, D., Lataster, J., Collip, D., van Nierop, M., & Myin-Germeys, I. (2018). Overall cortisol, diurnal slope, and stress reactivity in psychosis: An experience sampling approach. PSYCHONEUROENDOCRINOLOGY96, 61-68. doi:10.1016/j.psyneuen.2018.06.007

Kasanova, Z., Ceccarini, J., Frank, M. J., van Amelsvoort, T., Booij, J., van Duin, E., . . . Myin-Germeys, I. (2017). Intact striatal dopaminergic modulation of reward learning and daily-life reward-oriented behavior in first-degree relatives of individuals with psychotic disorder. Psychological Medicine , 1-6.

Myin-Germeys, I., Kasanova, Z., Vaessen, T., Vachon, H., Kirtley, O., Viechtbauer, W., & Reininghaus, U. (2018). Experience sampling methodology in mental health research: new insights and technical developments. WORLD PSYCHIATRY17(2), 123-132. doi:10.1002/wps.20513

Hwang, B., You, J., Vaessen, T., Myin-Germeys, I., Park, C., & Zhang, B. -T. (2018). Deep ECGNet: An Optimal Deep Learning Framework for Monitoring Mental Stress Using Ultra Short-Term ECG Signals. Telemedicine and E-health. doi:10.1089/tmj.2017.0250

Vaessen, T., van Nierop, M., Delespaul, P., Derom, C., De Hert, M., Jacobs, N., . . . Myin-Germeys, I. (2017). Is sensitivity to daily stress predictive of onset or persistence of psychopathology?. European Psychiatry 45, 167-173. doi:10.1016/j.eurpsy.2017.07.002

Batink, T., Bakker, J., Vaessen, T., Kasanova, Z., Collip, D., van Os, J., . . . Peeters, F. (2016). Acceptance and Commitment Therapy in Daily Life Training: A Feasibility Study of an mHealth Intervention. Journal of Medical Internet Research 4(3).

Kasanova, Z., Hernaus, D., Vaessen, T., van Amelsvoort, T., Winz, O., Heinzel, A., . . . Myin-Germeys, I. (2016). Early-Life Stress Affects Stress-Related Prefrontal Dopamine Activity in Healthy Adults, but Not in Individuals with Psychotic Disorder. PLoS One 11(3).

Vaessen, T., Hernaus, D., Myin-Germeys, I., & van Amelsvoort, T. (2015). The dopaminergic response to acute stress in health and psychopathology: A systematic review. Neuroscience and Biobehavioral Reviews 56, 241-51.

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