Abstract

In lieu of an abstract, here is a brief excerpt of the content:Arguing about PsychiatryNatural Selection, Austinian Conservatism, and Finding Our Way to the BestJoseph Gough (bio)Professors Murphy and Lieberman have offered two generous and interesting commentaries on my article, each very insightful and helpful in its own way, and each offering an interesting alternative characterization of the subject matter of psychiatry. I found each extremely thought-provoking, hence this rather bloated response. I strongly disagree with each. In brief, I disagree with the 'preliminaries' of each commentary, struggle to see the tension between Hull's view of science and my view of psychiatry, reject Lieberman's appeal to the history of mind-like and mental-illness-like concepts, and finally, believe my position neither suffers from the instability of psychiatry, nor blocks the route to best practice, nor counsels despair.Metaphysical Precision and Conceptual Evolution: Response to MurphyMurphy begins by offering some helpful context for the debate, and for our disagreement within that debate. Partly it is helpful because it raises a cluster of questions, which I agree with him, are related to the topic at hand. Partly it is helpful because it lays out Murphy's background metaphysics, with which I broadly agree, but where I think it is important to be more pedantic than Murphy himself is. Murphy and I agree that there are animate objects, importantly different from inanimate objects; we also agree that there is no object in nature that is a mind. However, in that [End Page 45] opening paragraph, there are a few things that look to me a little like conflations—and while I am happy to grant this as pedantry, I am not happy to deny its importance.First, not everything animate is intelligent and unpredictable—a presumably accidental implication of Murphy's use of 'these' throughout the paragraph. Second, intelligence and unpredictability do not in my view cluster in the way that Murphy suggests in the passage—a highly intelligent system may be exceptionally predictable at least so long as its goals and knowledge are fixed, and a highly unpredictable system may, of course, be entirely unintelligent. Of course, when some systems behave other than we expect, we count this as a failing of the system; but this is a feature of artifacts as well as animate systems, and perhaps also of objects that are neither artifacts nor animate (think of a farmer whose crops fail to go—might they not think there is something wrong with the soil?). The class of 'predictions' Murphy identifies is what I would describe as a class of normative expectations, that, of course, must be somewhat in line with the way things actually are, but are not 'predictions' in the paradigmatic sense of guesses about what will happen.This pedantry matters because this implied (or perhaps less charitably, enforced) alignment between non-coextensive categories in this picture of Murphy's is leveraged, I think, to gesture towards an objection. First, Murphy claims that this class of systems has required a special vocabulary, 'mental' vocabulary. Second, it is, I think, suggested in Murphy's set-up (and perhaps in Murphy's work; Murphy & Stich, 1999) that at some level this vocabulary anchors what we are talking about when we are talking about 'mental illness.'But here, of course, I disagree—or at least, I might disagree if I were clear what is being claimed. Which class of systems is that gives rise to this 'special vocabulary? Several have been mentioned. It should also come as no surprise that I think it is deeply unclear what counts as 'mental' vocabulary. Is it the vocabulary of animacy? Of normative expectation and function-ascription? Perhaps of intentionality? Or of consciousness? Maybe it is defined 'ostensively' with respect to terms like belief and desire?After these preliminaries, Murphy offers an objection to my position, and a brief defense of his own. I would like to begin with his defense of his own position:the best way to think about the claim that mental illnesses are brain diseases … is to see them as committing us to a form of explanation that treats psychiatry as continuous with other sciences of mind, in...