106 research outputs found
Open Materials 'The Best of Both Worlds?'
No full textThis page contains model outputs and visualizations related to the manuscript entitled 'The best of both worlds? General principles of psychopathology in personalized assessment' by Olthof et al., (2022)
Olthof_Open_Practices_Disclosure – Supplemental material for Critical Fluctuations as an Early-Warning Signal for Sudden Gains and Losses in Patients Receiving Psychotherapy for Mood Disorders
No full textSupplemental material, Olthof_Open_Practices_Disclosure for Critical Fluctuations as an Early-Warning Signal for Sudden Gains and Losses in Patients Receiving Psychotherapy for Mood Disorders by Merlijn Olthof, Fred Hasselman, Guido Strunk, Marieke van Rooij, Benjamin Aas, Marieke A. Helmich, Günter Schiepek and Anna Lichtwarck-Aschoff in Clinical Psychological Science</p
Olthof_Supplemental_Material – Supplemental material for Critical Fluctuations as an Early-Warning Signal for Sudden Gains and Losses in Patients Receiving Psychotherapy for Mood Disorders
No full textSupplemental material, Olthof_Supplemental_Material for Critical Fluctuations as an Early-Warning Signal for Sudden Gains and Losses in Patients Receiving Psychotherapy for Mood Disorders by Merlijn Olthof, Fred Hasselman, Guido Strunk, Marieke van Rooij, Benjamin Aas, Marieke A. Helmich, Günter Schiepek and Anna Lichtwarck-Aschoff in Clinical Psychological Science</p
Dynamic Complexity in relation to Problem Intensity in Psychotherapy: preregistration and open materials of two studies
No full textThis project contains the preregistration and open materials for two studies. Research question 1 in the preregistration is reported on in study 1. Research question 2 in the preregistration is reported on in study 2. The open materials for both studies are available in different components with reference to the title of the respective study.
Note that for the same variables different names are used in preregistration and manuscript. An overview of these name differences is given in the additional file 'Clarification_Variable_Names.docx'. Some algorithms (dynamic complexity, ts_levels) used in these studies are now available as functions in the R-package casNET: https://fredhasselman.github.io/casnet/
Study 1:
Olthof, M., Hasselman, F., Strunk, G., Aas, B., Schiepek, G., & Lichtwarck-Aschoff (2019). Destabilization in Self-Ratings of the Psychotherapeutic Process is associated with Better Treatment Outcome in Patients receiving Psychotherapy for Mood Disorders. Psychotherapy Research.
Study 2:
Olthof, M., Hasselman, F., Strunk, G., Van Rooij, M., Aas, B., Helmich, M.A., Schiepek, G., & Lichtwarck-Aschoff (2019). Critical Fluctuations as an Early-Warning Signal for Sudden Gains and Losses in Patients receiving Psychotherapy for Mood Disorders. Clinical Psychological Science
Dynamics of psychopathology and clinical change: A complex systems approach
No full textHere you can find my 2023 dissertation
From metaphor to computation: Constructing the potential landscape for multivariate psychological formal models
No full textFor psychological formal models, the stability of different phases is an important
property for understanding individual differences and change processes. Many researchers use
landscapes as a metaphor to illustrate the concept of stability, while the corresponding
quantitative method is still lacking. In this work, we propose a method to construct the potential
landscape for multivariate psychological models. This method is based on the generalized
potential function defined by Wang et al. (2008) and Monte Carlo simulation. We define three
types of stability, namely absolute stability, relative stability, and geometric stability, for
psychological phases based on potential landscapes. With the panic disorder model (Robinaugh
et al., 2019) as an example, we demonstrate how the method can be used to quantify the stability
of states and phases, show the influence of model parameters, and guide model modifications.
An R package, simlandr, was developed to provide an implementation of the method.
Keywords: complex dynamical systems, clinical psychology, formal theory, computational
modeling, potential landscap
Open Materials - Critical Fluctuations as an Early-Warning Signal for Sudden Gains and Losses in Patients receiving Psychotherapy for Mood Disorders
No full textOpen materials for the study 'Critical Fluctuations as an Early-Warning Signal for Sudden Gains and Losses in Patients receiving Psychotherapy for Mood Disorders
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