PMID: 3760906Sep 1, 1986Paper

Interpretation of abnormal responses to the Quality Extinction Test in schizophrenia

Journal of Neurology, Neurosurgery, and Psychiatry
O GambiniS Scarone

Abstract

The Quality Extinction Test (QET) has proved to be valuable for detecting abnormal hemisphere functioning in neurological as well as psychiatric patients. The present and other studies have shown a higher frequency of left side extinction in schizophrenics. This has been attributed either to contralateral parietal malfunction or to ipsilateral frontal abnormality. To evaluate the role of different brain regions in determining tactile extinctions in schizophrenic patients, a population of 70 such subjects were subgrouped according to their QET scores (left, right, left/right, and non-extinguishers) and their neuropsychological task performance profiles were compared. Right extinguishers had QET scores similar to those of non-extinguishers; left/right extinguishers were closer to left extinguishers. Non-extinguishers were the best performers and left extinguishers the poorest, particularly where right hemisphere-dependent tasks were concerned.

References

Aug 1, 1979·The American Journal of Psychiatry·M A TaylorR Abrams
Mar 1, 1977·Journal of Neurology, Neurosurgery, and Psychiatry·A S SchwartzR E Flynn
Apr 1, 1974·Electroencephalography and Clinical Neurophysiology·D Giannitrapani, L Kayton
Jan 1, 1974·Neuropsychologia·D RaczkowskiR Nebes
Aug 1, 1971·Journal of Psychiatric Research·W J Nauta
Oct 1, 1982·The British Journal of Psychiatry : the Journal of Mental Science·S ScaroneC L Cazzullo

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Citations

Jan 1, 1987·Journal of Affective Disorders·O GambiniS Scarone
Mar 1, 1989·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·C ColomboS Scarone
Jan 15, 1989·Biological Psychiatry·S W LewisA M Reveley
Feb 1, 1989·The British Journal of Psychiatry : the Journal of Mental Science·O GambiniS Scarone
Nov 17, 2020·Frontiers in Psychiatry·Dan LiuShu Ping Tan

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