Related Experiment Video
Updated: Jul 7, 2026

Standardized Data Acquisition for Neuromelanin-Sensitive Magnetic Resonance Imaging of the Substantia Nigra
Published on: September 8, 2021
Classification in psychiatry: Does it deliver in schizophrenia and depression?
Graham W Mellsop1, David B Menkes, Selim M El-Badri
1University of Auckland, New Zealand. mellsopg@waikatodhb.govt.nz
Background:
In the context of ongoing work to develop the next iteration of psychiatric classification systems, we briefly review the performance of current systems against their own stated objectives, for two major diagnostic groupings.
Discussion:
In the major groupings of schizophrenia and depression, experience over the last 50 years has highlighted particular inadequacies in the utility and validity of available classifications.
Summary:
Advances in psychiatric knowledge and practice notwithstanding, present classification systems would be enhanced by the incorporation of dimensional components. Minor tinkering with current systems will reflect only a missed opportunity. Improving classification will facilitate quality improvement of mental health systems.
Related Concept Videos
Diagnostic and Statistical Manual of Mental Disorders (DSM)
Psychosis and Antipsychotic Drugs: Overview
Schizophrenia
Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within the...
Depression: Overview
Positive Symptoms Schizophrenia: Hallucinations and Delusions
Hallucinations
Hallucinations in...

