Paradigm mental illnesses involve psychosis, the defining mark of which is delusion. Delusion - the loss of contact with reality - affects not only belief but any mental state or act (hence delusional thinking, delusional mood, delusional perception, delusional belief, etc.); 'delusionality' may be a better term. In this and the next seminar I consider various psychopathologists' attempts to understand delusion, and suggest that our best understanding of delusion is reached by an appreciation of how such attempts to understand it fail. This seminar considers some philosophical efforts, whilst the next considers approaches offered by cognitive psychology.
Silvano Arieti (1974). Interpretation of Schizophrenia. 2nd edition. Basic Books. ch. 16 section II.
Ludwig Binswanger (1958). The existential analysis school of thought. In R. May, E. Angel & H. Ellenberger (Eds.) Existence: A New Dimension in Psychiatry and Psychology. Basic Books. 191–213.
Eugen Bleuler (1911/1950). Dementia Praecox or the Group of Schizophrenias. International Universities Press.
Stanley Cavell (1979). The Claim of Reason. Oxford University Press.
John Campbell (2001). Rationality, meaning, and the analysis of delusion. Philosophy, Psychiatry, & Psychology 8, 89-100.
James Conant (1991). The search for logically alien thought. Philosophical Topics, 20, 115-180.
Cora Diamond (2008). The difficulty of reality and the difficulty of philosophy. In C. Wolfe & I. Hacking (Eds.) Philosophy and Animal Life. Columbia University Press.
Richard Gipps & Sanneke de Haan (2019). Schizophrenic autism. The Oxford Handbook of Phenomenological Psychopathology. Oxford University Press
Andy Hamilton (2006). Against the Belief Model of Delusion. In Reconciling Schizophrenia. Chung, M., Fulford, W. & Graham, G. (Eds). Oxford: Oxford University Press. 217-234.
John Rhodes & Richard Gipps (2008). Delusions, certainty, and the background. Philosophy, Psychiatry, & Psychology, 15, 295-310.
Rupert Read (2007). Applying Wittgenstein. Continuum. Section 2.2. (See also Rupert Read (2003). Literature as philosophy of psychopathology. Philosophy, Psychiatry, & Psychology, 10, 115-124.)
Tim Thornton (2008). Why the idea of framework propositions cannot contribute to an understanding of delusions. Phenomenology and the Cognitive Sciences, 7, 159-175.
Eilhard von Domarus (1944). The specific laws of logic in schizophrenia. In J S Kasanin (ed.), Language and Thought in Schizophrenia: Collected Papers. University of California Press. 104-114.