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Scientific psychiatry?

PO 67, Institute of Psychiatry, De Crespigny Park, London SE5 8AF, UK.

Correspondence: E-mail: m.broome{at}iop.kcl.ac.uk

We write in response to the editorial by Dr Turner (2003), who wishes to revitalise Jaspers' view that psychiatry cannot extricate itself from the humanities. With the ascendancy of biological psychiatry this idea is important to remember. However, Dr Turner's article does little to advance this idea and contains some possible misconceptions.

Turner's interpretation of Donald Davidson's work does not clear things up. Academic philosophers are still actively debating what Davidson's philosophy amounts to. In this situation, an appeal simply to his authority is misdirected.

On specific points, Turner needs to be challenged. First, he seems to interpret Davidson as denying the possibility of a scientific psychopathology. Biological psychiatrists are not trying to solve the mind–body problem or trying to discover the strict psychophysical laws that Davidson claims do not exist; rather, they are trying to find correlations between mental phenomena and physical processes. That such correlations exist seems obvious, as anyone who has taken a mind-altering substance can confirm or as Penfield's neurosurgical experiments vividly showed. Davidson's attack on the idea of strict causation between physical events and mental events serves not so much to prohibit the possibility of a science of psychology, but rather to deny such a science predictive powers equal to those of physics. This is a consequence of Davidson's philosophy of mind, whereby despite being ontologically an unabashed materialist he claims that the use of mental predicates is dependent upon normative and holistic concerns of society and language, and that these are not properties of the physical order. Davidson has indeed accepted the points made by some of his critics (Davidson, 1987), that empirically discovered helpful generalisations, so-called ceteris paribus laws, may be formalised and be of great utility. This surely is a worthy enough goal for psychology and psychiatry.

Second, Turner also suggests that there is no possibility of improvement in descriptive psychopathology (Turner, 2003). This is simply assertion and suggests that the author believes that phenomenology as a discipline ended with Jaspers in 1913, and further that Jaspers provided an adequate account of the subjective experience of mental disorder. Current opinion seems to regard Jaspers' ideas as either obstructive to progress in psychopathology with his notion of the ‘un-understandability’ of some psychotic symptoms (e.g. work on cognitive models of psychosis; see Frith, 1992; Garety & Hemsley, 1994) or an obscure first start which petered out because he overcomplicated things (Cutting, 1997). Work on phenomenology continues to inform scientific research and clinical practice (Kapur, 2003).

Our view is that psychiatry's potential adversely to drift from the humanities can be rectified by close attention to the phenomenology that forms the point of entry to the subject. Turner has given up on this project whereas to us it seems barely to have begun!

REFERENCES

Cutting, J. (1997) Principles of Psychopathology.Oxford: Oxford University Press.

Davidson, D. (1987) Problems in the explanation of action. In Metaphysics and Morality: Essays in Honour of J. J. C. Smart (eds P. Pettit, R. Sylvan & J. Norman). Oxford: Blackwell.

Frith, C. D. (1992) The Cognitive Neuropsychology of Schizophrenia.Hove: LEA.

Garety, P. A. & Hemsley, D. R. (1994) Delusions: Investigations into the Psychology of Delusional Reasoning. Maudsley Monograph 36. Oxford: Oxford University 36.Oxford:Oxford Press.

Kapur, S. (2003) Psychosis as a state of aberrant salience: a framework linking biology, phenomenology, and pharmacology in schizophrenia. American Journal of Psychiatry, 160, 13 -23.[Abstract/Free Full Text]

Turner, M. A. (2003) Psychiatry and the human sciences. British Journal of Psychiatry, 182, 472 -474.[Free Full Text]

This article has been cited by other articles:

				R. Harland, G. Owen, and M. Broome Humanity and biology in psychiatry The British Journal of Psychiatry, April 1, 2004; 184(4): 363 - 363. [Full Text] [PDF]

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