• Publications
  • Influence
Remission in schizophrenia: proposed criteria and rationale for consensus.
TLDR
The first consensus-based operational criteria for symptomatic remission in schizophrenia are based on distinct thresholds for reaching and maintaining improvement, as opposed to change criteria, allowing for alignment with traditional concepts of remission in both psychiatric and nonpsychiatric illness.
The Scale for the Assessment of Negative Symptoms (SANS): Conceptual and Theoretical Foundations
  • N. Andreasen
  • Psychology, Medicine
    British Journal of Psychiatry
  • 1 November 1989
TLDR
The SANS is complemented by a Scale for the Assessment of Positive Symptoms (SAPS), which permits detailed evaluation and global ratings of hallucinations, delusions, positive formal thought disorder and bizarre behaviour and taken together, the two scales provide a comprehensive set of rating scales.
Negative symptoms in schizophrenia. Definition and reliability.
  • N. Andreasen
  • Psychology, Medicine
    Archives of general psychiatry
  • 1 July 1982
TLDR
The developed Scale for the Assessment of Negative Symptoms has excellent interrater reliability and the five symptom complexes defined by the scale have good internal consistency, which indicates that the conceptual organization of the scale is also cohesive.
The Longitudinal Interval Follow-up Evaluation. A comprehensive method for assessing outcome in prospective longitudinal studies.
The Longitudinal Interval Follow-up Evaluation (LIFE) is an integrated system for assessing the longitudinal course of psychiatric disorders. It consists of a semistructured interview, an Instruction
The Comprehensive Assessment of Symptoms and History (CASH). An instrument for assessing diagnosis and psychopathology.
TLDR
Research strategies suggest that investigators should maintain a flexible database to permit them to adapt to changes in diagnostic systems, to do comparative nosological studies, and, ultimately, to develop new diagnostic systems based on knowledge concerning the underlying neurobiological nature of disorders.
Awareness of illness in schizophrenia and schizoaffective and mood disorders.
TLDR
It is suggested that severe self-awareness deficits are a prevalent feature of schizophrenia, perhaps stemming from the neuropsychological dysfunction associated with the disorder, and are more common in schizophrenia than in other psychotic disorders.
Negative v positive schizophrenia. Definition and validation.
TLDR
Criteria for dividing the schizophrenic syndrome into three subtypes was developed: positive, negative, and mixed schizophrenia, and significant differences were noted using external validators such as premorbid adjustment, indices of cognitive dysfunction, ventricular brain ratio, and course in hospital.
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