20th AIAI 2024, 27 - 30 June 2024, Corfu, Greece

Higher-Order Adaptive Dynamical System Modelling of the Role of Epigenetics in Major Depressive Disorder

Taylor Magielse, Diana Pena Lage, Isabel van Lieshout, Jan Treur

Abstract:

  This paper focuses on the modelling of an experiment concerning the emotional response as a result of thinking about happy memories for non-depressed and depressed individuals. Furthermore, it shows the role of epigenetic changes in this experiment by showing that the depletion of the brain-derived neurotrophic factor (BDNF) gene expression, often associated in literature both with depression and memory functions, can lead to a depressed individual and a change of feeling state with happy memory recall. An adaptive dynamical system model was designed for this process, which involves higher-order adaptation in emotion regulation. This computational model was represented as a higher-order adaptive network model and showcases an individual who, at first, does not have a major depressive disorder (MDD), but then a stressful life event happens, leading to epigenetic changes associated with BDNF depletion that make the person develop depression.  

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