Department of Philosophy

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Browsing Department of Philosophy by browse.metadata.advisor "Bolton, Derek"

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    Philosophy of psychopharmacology : a naturalist approach
    (Stellenbosch : Stellenbosch University, 2008-03) Stein, Dan J.; Van Niekerk, Anton A.; Bolton, Derek; Stellenbosch University. Faculty of Arts and Social Sciences. Dept. of Philosophy.
    ENGLISH ABSTRACT: The use of psychiatric medication is an important part of modern medical and psychiatric practice. Clinical psychopharmacology raises a broad range of philosophical issues, including metaphysical, epistemological, and moral questions. This dissertation attempts to provide a conceptual framework for addressing several of these questions, and for formulating a conceptual basis for psychiatry in general and clinical psychopharmacology in particular. The dissertation begins by heuristically contrasting two broad approaches towards a range of questions in the philosophy of science, language, and medicine. A classical position takes an essentialist and objective view of categories while a critical position emphasizes that categories are often metaphoric and subjective. A synthetic or integrated position might be possible, in which radial categories are often based on metaphoric extensions of basic-level sensorimotor-affective experience, and are embodied in the brain-mind and in social practices. Rather than attempt to defend an integrated position in purely conceptual terms, the dissertation supports this view of categories using data from the cognitive-affective sciences. An important category for philosophy of medicine is disorder, and the dissertation argues that certain universal considerations explain agreement about prototypical disorders. Extensions of disorder metaphors are theory-driven and valueladen, and although disagreement about atypical conditions is likely, reasonable debate is possible. The dissertation then considers several conceptual questions, namely the nature of psychotropics, of emotion, and of the self. In each case, a classical position which attempts an essentialist definition is contrasted with a critical position which emphasizes that these constructs are socially constructed and crucially subjective. Cognitiveaffective data is then employed to support an integrative position which emphasizes the embodiment of complex brain-mind phenomena in the brain-mind and in social practices. Explanatory questions considered are how best to explain pharmacotherapy and psychotherapy, how to account for placebo responses, and the relevance of evolutionary explanations of disorder. It is argued that a functionalist account fails to explain psychopharmacological phenomena, including pharmacotherapy and placebo effects. Instead, an account which emphasizes how psychobiological mechanisms produce complex brain-mind phenomena is needed. Evolutionary explanations add to this account, but cannot by themselves differentiate disorder from non-disorder. Ethical questions include the question of whether psychiatric disorders should be treated, whether such disorders should be treated with psychotropics, and whether psychotropics should be used to enhance. The cognitive-affective sciences support the treatment of typical disorders. In more atypical cases, pharmacotherapy, psychotherapy, and non-medical interventions should be considered on an individual basis. As technologies expand, considerations about the value of accepting fate versus the value of attempting to improve life by a range of methods, will need to be weighed carefully. In summary, this dissertation puts forward a philosophy of psychopharmacology which argues that psychiatry practice can be viewed, naturalistically, as based on the natural and human sciences. At the same time, good psychiatric practice involves an engagement with the complex realities of the human condition, including a consideration of individuals’ suffering. Good psychopharmacological practice requires integrating the objective and the subjective, considering both explanation and understanding, and providing a balanced view of the good and bad of psychotropics that avoids both unrealistic optimism and undue pessimism.