Dimensional approach to delusions: comparison across types and diagnoses.

  title={Dimensional approach to delusions: comparison across types and diagnoses.},
  author={Paul S. Appelbaum and Pamela Clark Robbins and Loren H. Roth},
  journal={The American journal of psychiatry},
  volume={156 12},
OBJECTIVE A dimensional approach to the characterization of delusions was used to examine the use of non-content-related descriptors of delusions in revealing differences across diagnostic categories and delusion types. METHOD Interviews with 1,136 acutely hospitalized psychiatric patients identified subjects as definitely or possibly delusional on the basis of screening questions derived from the Diagnostic Interview Schedule. Subjects with delusions were given the MacArthur-Maudsley… 

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The notion of the discreteness of these symptoms encourages the conception of psychosis and schizophrenia as states that are also discrete and discontinuous and the further conception that patients with these diagnoses are somehow qualitatively different from other patients.