Pathophysiology and treatment of negative symptoms
Villeneuve, A.
Canadian Journal of Psychiatry. Revue Canadienne de Psychiatrie 39(9 Suppl 2: S53-S58
1994
ISSN/ISBN: 0706-7437 PMID: 7533052 Document Number: 435667
The assessment and clinical characterization of the negative symptoms of schizophrenia are reviewed. While negative symptoms may be secondary to positive symptoms, extrapyramidal side-effects, depressive illness, chronic institutionalization or other factors, they may also be primary, i.e., integral to the disease process itself. Recent literature has suggested that negative symptoms may represent a distinct pathophysiological process mediated in part by serotonergic mechanisms. Atypical neuroleptics, which have dual effects on D2/5-HT2 receptors, have demonstrated clinical efficacy on both negative and positive symptoms of schizophrenia, and might help to clarify the pathogenesis of these symptom clusters.