1 Furthermore, it is not always clear what is meant by the claim that delusions are beliefs (see, for example, Bayne and Pacherie 2005; Bortolotti 2005).Despite such concerns, much the same strategy has been employed to explain a range of delusions. Delusions, it is maintained, are the product of two different impairments. First of all, there is an anomalous perception. This is then fed into defective reasoning processes, which generate a delusional belief. It is generally assumed that the "belief' in question is a propositional attitude and that the delusion takes the form "X believes that p' where p is a false proposition that any rational being with access to the same information ought to reject. Approaches like this tend to presuppose a rather impoverished conception of experience. It is construed as a kind of input system that presents the subject with assorted perceptual contents, which are then fed into belief-forming processes." /> Delusional atmosphere and delusional belief - Ratcliffe Matthew | sdvig press