We discuss the possibility of multiple underlying etiologies of the condition currently labeled as schizophrenia. We support this hypothesis with a theoretical model of the prefrontal-limbic system. We show how the dynamical behavior of this model depends on an entire set of physiological parameters, representing synaptic strengths, vulnerability to stress-induced cortisol, dopamine regulation and rates of autoantibody production. Malfunction of different such parameters produces similar outward dysregulation of the system, which may readily lead to diagnosis difficulties in a clinician's office. We further place this paradigm within the contexts of pathophysiology and of antipsychotic pharmacology. We finally propose brain profiling as the future quantitative diagnostic toolbox that agrees with a multiple etiologies hypothesis of schizophrenia.
@article{arxiv.0808.2322,
title = {A multi-etiology model of systemic degeneration in schizophrenia},
author = {Anca Radulescu},
journal= {arXiv preprint arXiv:0808.2322},
year = {2008}
}