1. Cui, J., Olthof, M., Hasselman, F., & Lichtwarck-Aschoff, A. (2025). Examining the Research Methods of Early Warning Signals in Clinical Psychology through a Theoretical Lens. BMC Psychiatry. https://doi.org/10.1186/s12888-025-06688-5
  2. Cui, J., Hasselman, F., Olthof, M., & Lichtwarck-Aschoff, A. (2025). Understanding Types of Transitions in Clinical Change: An Introduction from the Complex Dynamic Systems Perspective. Journal of Psychopathology and Clinical Science. https://doi.org/10.1037/abn0000991
  3. Hulsmans, D. H. G., Otten, R., Poelen, E. A. P., van Vonderen, A., Daalmans, S., Hasselman, F., Olthof, M., & Lichtwarck-Aschoff, A. (2024). A Complex Systems Perspective on Chronic Aggression and Self-Injury: Case Study of a Woman with Mild Intellectual Disability and Borderline Personality Disorder. BMC Psychiatry, 24(1), 378. https://doi.org/10.1186/s12888-024-05836-7
  4. Hulsmans, D. H. G., Oude Maatman, F. J. W., Otten, R., Poelen, E. A. P., & Lichtwarck-Aschoff, A. (2024). Idiographic Personality Networks: Stability, Variability and When They Become Problematic. Journal of Research in Personality, 109, 104468. https://doi.org/10.1016/j.jrp.2024.104468
  5. Olthof, M., Bunge, A., Maciejewski, D. F., Hasselman, F., & Lichtwarck-Aschoff, A. (2024). Transitions and Resilience in Ecological Momentary Assessment: A Multiple Single-Case Study. Journal for Person-Oriented Research, 10(2), 89–99. https://doi.org/10.17505/jpor.2024.27102
  6. Olthof, M., Aas, B., Bossenbroek, R., Van Den Bergh, R., Goldbeck, F., Daniels-Wredenhagen, N., & Lichtwarck-Aschoff, A. (2024). Van ROM naar gepersonaliseerde proces monitoring: een nieuwe kijk op meten in de praktijk. https://doi.org/10.31234/osf.io/vedwc
  7. van den Bergh, R., Olthof, M., Goldbeck, F., Hegewald, K., Pommerien-Becht, F., Daniels-Wredenhagen, N., Weggemans, R. J., Scholz, S., Daalmans, S., Otten, R., Aas, B. G., & Lichtwarck-Aschoff, A. (2024). The Content of Personalised Network-Based Case Formulations. Journal of Contemporary Psychotherapy. https://doi.org/10.1007/s10879-023-09613-7
  8. Cui, J., Lichtwarck-Aschoff, A., Olthof, M., Li, T., & Hasselman, F. (2023). From Metaphor to Computation: Constructing the Potential Landscape for Multivariate Psychological Formal Models. Multivariate Behavioral Research, 58(4), 743–761. https://doi.org/10.1080/00273171.2022.2119927
  9. Cui, J., Hasselman, F., & Lichtwarck-Aschoff, A. (2023). Unlocking Nonlinear Dynamics and Multistability from Intensive Longitudinal Data: A Novel Method. Psychological Methods. https://doi.org/10.1037/met0000623
  10. Hasselman, F., den Uil, L., Koordeman, R., de Looff, P., & Otten, R. (2023). The Geometry of Synchronization: Quantifying the Coupling Direction of Physiological Signals of Stress between Individuals Using Inter-System Recurrence Networks. Frontiers in Network Physiology, 3. https://doi.org/10.3389/fnetp.2023.1289983
  11. Hasselman, F. (2023). Going Round in Squares: Theory-Based Measurement Requires a Theory of Measurement. Theory & Psychology, 33(1), 145–152. https://doi.org/10.1177/09593543221131511
  12. Hasselman, F. (2023). Understanding the Complexity of Individual Developmental Pathways: A Primer on Metaphors, Models, and Methods to Study Resilience in Development. Development and Psychopathology, 35(5), 2186–2198. https://doi.org/10.1017/S0954579423001281
  13. Olthof, M., Hasselman, F., Aas, B., Lamoth, D., Scholz, S., Daniels-Wredenhagen, N., Goldbeck, F., Weinans, E., Strunk, G., Schiepek, G., Bosman, A. M. T., & Lichtwarck-Aschoff, A. (2023). The Best of Both Worlds? General Principles of Psychopathology in Personalized Assessment. Journal of Psychopathology and Clinical Science, 132(7), 808–819. https://doi.org/10.1037/abn0000858
  14. Olthof, M., Hasselman, F., Oude Maatman, F., Bosman, A. M. T., & Lichtwarck-Aschoff, A. (2023). Complexity Theory of Psychopathology. Journal of Psychopathology and Clinical Science, 132(3), 314–323. https://doi.org/10.1037/abn0000740
  15. Hasselman, F. (2022). Early Warning Signals in Phase Space: Geometric Resilience Loss Indicators from Multiplex Cumulative Recurrence Networks. Frontiers in Physiology, 13. https://doi.org/10.3389/fphys.2022.859127
  16. de Boer, N. S., de Bruin, L. C., Geurts, J. J. G., & Glas, G. (2021). The Network Theory of Psychiatric Disorders: A Critical Assessment of the Inclusion of Environmental Factors. Frontiers in Psychology, 12. https://doi.org/10.3389/fpsyg.2021.623970
  17. Heino, M. T. J., Knittle, K., Noone, C., Hasselman, F., & Hankonen, N. (2021). Studying Behaviour Change Mechanisms under Complexity. Behavioral Sciences, 11(5), 77. https://doi.org/10.3390/bs11050077
  18. Maatman, F. O. (2021). Psychology’s Theory Crisis, and Why Formal Modelling Cannot Solve It. OSF. https://doi.org/10.31234/osf.io/puqvs
  19. Hasselman, F., & Bosman, A. M. T. (2020). Studying Complex Adaptive Systems with Internal States: A Recurrence Network Approach to the Analysis of Multivariate Time-Series Data Representing Self-Reports of Human Experience. Frontiers in Applied Mathematics and Statistics, 6. https://doi.org/10.3389/fams.2020.00009
  20. Helmich, M. A., Wichers, M., Olthof, M., Strunk, G., Aas, B., Aichhorn, W., Schiepek, G., & Snippe, E. (2020). Sudden Gains in Day-to-Day Change: Revealing Nonlinear Patterns of Individual Improvement in Depression. Journal of Consulting and Clinical Psychology, 88(2), 119–127. https://doi.org/10.1037/ccp0000469
  21. Olthof, M., Hasselman, F., & Lichtwarck-Aschoff, A. (2020). Complexity in Psychological Self-Ratings: Implications for Research and Practice. BMC Medicine, 18(1), 317. https://doi.org/10.1186/s12916-020-01727-2
  22. Olthof, M., Hasselman, F., Strunk, G., van Rooij, M., Aas, B., Helmich, M. A., Schiepek, G., & Lichtwarck-Aschoff, A. (2020). Critical Fluctuations as an Early-Warning Signal for Sudden Gains and Losses in Patients Receiving Psychotherapy for Mood Disorders. Clinical Psychological Science, 8(1), 25–35. https://doi.org/10.1177/2167702619865969
  23. Bosman, A. M. T. (2017). Disorders Are Reduced Normativity Emerging from the Relationship between Organisms and Their Environment. In K. Hens, D. Cutas, & D. Horstkötter (Eds.), Parental Responsibility in the Context of Neuroscience and Genetics (pp. 35–54). Springer International Publishing. https://doi.org/10.1007/978-3-319-42834-5_3
  24. Wijnants, M. L. (2014). A Review of Theoretical Perspectives in Cognitive Science on the Presence of 1/f Scaling in Coordinated Physiological and Cognitive Processes. Journal of Nonlinear Dynamics, 2014(1), 962043. https://doi.org/10.1155/2014/962043
  25. Lichtwarck-Aschoff, A., Hasselman, F., Cox, R., Pepler, D., & Granic, I. (2012). A Characteristic Destabilization Profile in Parent-Child Interactions Associated with Treatment Efficacy for Aggressive Children. Nonlinear Dynamics-Psychology and Life Sciences, 16(3), 353.
  26. Wijnants, M., Cox, R., Hasselman, F., Bosman, A., & Van Orden, G. (2012). A Trade-off Study Revealing Nested Timescales of Constraint. Frontiers in Physiology, 3. https://doi.org/10.3389/fphys.2012.00116