“…The first-order adaptation levels of the model explicitly represent weights ω X,Y of some of the connections in the base model by first-order self-model states W X,Y (also called reification states). For instance, X 13 and X 14 are first-order self-model states representing the adaptive connection weights ω adrenalcortex,hippocampus and ω adrenalcortex,PFC, i.e., the connections represented by the two outgoing light-blue colored arrows fromX 6 , in the base model, respectively. The persistence μ and speed factors η of these connections' adaptation states X 13 and X 14 are represented by second-order self-model states X 15 (M cortisol−feedback ), X 16 (H cortisol−feedback ) and X 17 (M cortisol ), X 18 (H cortisol ), respectively.…”