The two main psychiatric taxonomies set out codifications of psychiatric diagnoses via lists of symptoms with the aim of maximizing the reliability of diagnostic judgements. This approach has been criticized, however, for failing to capture the precise connection between diagnostic judgements and symptoms as detected by skilled clinicians. Assuming that this criticism is correct, this chapter offers two related accounts of why this might be so. First, skilled diagnostic judgement may be an exercise of tacit knowledge: a practical skill the (...) exercise of which requires the presence of the patient. Second, the conception of criteria implicit in the DSM and ICD is based on a mistaken view of how what people say and do connects to their mental states. On an alternative account, in an overall gestalt diagnostic judgement the various criteria are abstractions from a whole that directly expresses the underlying psychopathological state of patients or clients. (shrink)

Half a century after Michael Polanyi conceptualised ‘the tacit component’ in personal knowing, management studies has reinvented ‘tacit knowledge’—albeit in ways that squander the advantages of Polanyi’s insights and ignore his faith in ‘spiritual reality’. While tacit knowing challenged the absurdities of sheer objectivity, expressed in a ‘perfect language’, it fused rational knowing, based on personal experience, with mystical speculation about an un-experienced ‘external reality’. Faith alone saved Polanyi’s model from solipsism. But Ernst von Glasersfeld’s radical constructivism provides scope to (...) rethink personal tacit knowing with regard to ‘other people’ and the intersubjectively viable construction of ‘experiential reality’. By separating tacit knowing from Polanyi’s metaphysical realism and drawing on Benedict Anderson’s concept of ‘imagined communities’, it is possible to conceptualise ‘imagined institutions’ as the tacit dimension of power that shapes human interaction. Whereas Douglass North claimed institutions could be reduced to rules, imagined institutions are known in ways we cannot tell. (shrink)

What does ordinary language philosophy contribute to the solution of the problems it diagnoses as violations of linguistic use? One of its biggest challenges has been to account for the epistemic asymmetry of mental states experienced by the subject of those states and the application of psychological properties to others. The epistemology of other minds appears far from resolved with reference to how sensation words are used in everyday language. In this paper, I revisit the Wittgensteinian arguments and show how (...) they engage the ordinary language method (in the modified form of grammatical investigation) to ‘dissolve’ the problem. Several important results are generated by way of this reconstruction. An expressive view of the vocabulary of sensation is defended which facilitates a discussion of sensation discourse emphasising the normative grammatical conditions for the communication of psychological states. This motivates a reassessment of criterial justification for the ascription of psychological concepts in the third person. In the final sections, I mobilise a normative approach to expose the moral relevance of the epistemology of other minds. Even if it is conceded that belief in other minds lacks warrant from an epistemological standpoint, this does not justify adopting the skeptical attitude from an ethical standpoint. In light of this, a normative justification for the a priori belief that others are subjects of consciousness is defended. (shrink)