Cited by 208Schizophrenia research and treatmentNeurotransmitter Receptor Influence on BehaviorTreatment of Major Depression

The NMDA Antagonist Model for Schizophrenia: Promise and Pitfalls

Abi-Saab, W., D'Souza, D., Moghaddam, B., Krystal, J.·1998·Pharmacopsychiatry

Abstract

Drug models have been extensively used to study the pathophysiology of schizophrenia. While they provide good insight into the neurobiology of this disorder, they have several shortcomings, which if known, help in the interpretation of results. In this paper we will discuss these shortcomings in general, and in relation to the N-methyl D-aspartate antagonist model for schizophrenia. This model has recently received a great deal of attention since both phencyclidine and the structurally related drug ketamine, produce symptoms that extend beyond psychosis per se to include other symptoms associated with schizophrenia. In fact, subanesthetic doses of ketamine in healthy individuals produce not only paranoia and perceptual alterations but also thought disorder, negative symptoms, cognitive deficits, as well as impairment on a number of electrophysiologic tests known to be abnormal in schizophrenia. These effects of ketamine will be discussed with a particular emphasis on implications for the pathophysiology and therapeutics of this disorder.

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Crossref · 10.1055/s-2007-979354

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Authors
Abi-Saab, W., D'Souza, D., Moghaddam, B., & Krystal, J.
Affiliations
Yale University (US)
Venue
Pharmacopsychiatry
Published
1998-07
Volume
31
Issue
S 2
Pages
104-109
ISSN
  • 0176-3679 (ISSN-L)
  • 1439-0795
OpenAlex
W2066794669
Cited by
208
References
0
Citations by year
2026: 3 · 2025: 1 · 2024: 4 · 2023: 3 · 2022: 5 · 2021: 6 · 2020: 9 · 2019: 2 · 2018: 4 · 2017: 8 · 2016: 4 · 2015: 7 · 2014: 10 · 2013: 7 · 2012: 7
FWCI
3.74
Type
journal article
Language
en
Open access
closed
Locations
  • Pharmacopsychiatry (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • U.S. Department of Veterans Affairs
  • National Alliance for Research on Schizophrenia and Depression
  • National Institutes of Health
  • National Institute of Mental Health (MH 44866, P50MH044866)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
Keywords
schizophrenia, ketamine, phencyclidine, drug-induced psychosis, thought disorder, negative symptoms, cognitive impairment, schizophrenia pathophysiology
MeSH terms
Anesthetics, Dissociative, Humans, Ketamine, Schizophrenia, Receptors, N-Methyl-D-Aspartate, Excitatory Amino Acid Antagonists

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