Absolute auditory threshold and threshold of unpleasantness of chronic schizophrenic patients and normal controls.

1970 ◽  
Vol 75 (1) ◽  
pp. 74-77 ◽  
Author(s):  
Frederic M. Levine ◽  
Norman Whitney
Keyword(s):  
Auditory Threshold ◽  
Chronic Schizophrenic ◽  
Schizophrenic Patients ◽  
Normal Controls

Negative Features, Retrieval Processes and Verbal Fluency in Schizophrenia

1993 ◽  
Vol 163 (6) ◽  
pp. 769-775 ◽  
Author(s):  
Heidi A. Allen ◽  
Peter F. Liddle ◽  
Christopher D. Frith
Keyword(s):  
Verbal Fluency ◽  
Chronic Schizophrenic ◽  
Retrieval Processes ◽  
Schizophrenic Patients ◽  
Normal Controls

Twenty chronic schizophrenic patients, ten matched normal controls and nine depressed controls performed categorical verbal fluency tasks for three minutes each on five separate occasions. On each occasion the schizophrenic patients generated significantly fewer words than the controls. Comparison of the different occasions showed that the schizophrenic patients had as many words available in their inner lexicons but were inefficient in retrieving them. The schizophrenic patients also generated fewer clusters of related words and more words outside the specified category. Reduced ability to generate words while the lexicon remained intact was more marked in patients with negative features. Patients with incoherence, in contrast, were more likely to produce inappropriate words. We propose that both poverty of speech and incoherence of speech reflect problems in the retrieval of words from the lexicon. To cope with these problems patients with poverty of speech terminate their search prematurely while the patients with incoherence commit errors in selecting words for output.

Artificial Organs: Thoughts & Progress:Plasma β-Endorphin Levels In Chronic Schizophrenic Patients and Normal Controls

2008 ◽  
Vol 3 (4) ◽  
pp. 375-377
Author(s):  
Enrique Espinosa-Meléndez ◽  
Samarthju Lal ◽  
N. P. Vasavan Nair ◽  
Thomas Ming Swi Chang
Keyword(s):  
Artificial Organs ◽  
Chronic Schizophrenic ◽  
Schizophrenic Patients ◽  
Normal Controls

Lumbar Air Encephalography in Chronic Schizophrenia: A Controlled Experiment

1966 ◽  
Vol 112 (483) ◽  
pp. 135-144 ◽  
Author(s):  
P. B. Storey
Keyword(s):  
Cerebral Atrophy ◽  
Chronic Schizophrenia ◽  
Controlled Experiment ◽  
First Report ◽  
Observer Error ◽  
Chronic Schizophrenic ◽  
Schizophrenic Patients ◽  
Air Encephalography ◽  
Normal Controls

The lumbar air encephalogram (L.A.E.G.) was introduced by Dandy in 1919, and in 1929 the first report of its use in schizophrenia was published by Jacobi and Winkler. Since then numerous papers have appeared, most of which have claimed to demonstrate cerebral atrophy in chronic schizophrenic patients. All these studies have suffered from the fact that no adequate series of normal controls has yet been collected. Most of the authors concerned made no attempt to use controls, nor did they consider the possibility of observer error or of the bias which may exist when the reporting radiologist knows the diagnosis and is looking for abnormalities.

The self and schizophrenia: a cognitive approach

2003 ◽  
Vol 62 (1) ◽  
pp. 45-51 ◽  
Author(s):  
Marek Nieznanski
Keyword(s):  
Normal Subjects ◽  
Control Group ◽  
Cognitive Approach ◽  
Schizophrenic Patients ◽  
Self Schema ◽  
Persons With Schizophrenia ◽  
Basic Features ◽  
Trait Words ◽  
Patients Experience ◽  
Normal Controls

The aim of the study was to explore the basic features of self-schema in persons with schizophrenia. Thirty two schizophrenic patients and 32 normal controls were asked to select personality trait words from a check-list that described themselves, themselves as they were five years ago, and what most people are like. Compared with the control group, participants from the experimental group chose significantly more adjectives that were common to descriptions of self and others, and significantly less that were common to self and past-self descriptions. These results suggest that schizophrenic patients experience their personality as changing over time much more than do healthy subjects. Moreover, their self-representation seems to be less differentiated from others-representation and less clearly defined than in normal subjects.

scholarly journals The use of computerised tomography in mental handicap patients

1992 ◽  
Vol 16 (10) ◽  
pp. 616-618
Author(s):  
S. K. Lekh ◽  
B. K. Puri ◽  
I. Singh
Keyword(s):  
Psychiatric Disorders ◽  
Research Tool ◽  
Clinical Neurology ◽  
Computerised Tomography ◽  
Chronic Schizophrenic ◽  
Mental Handicap ◽  
Schizophrenic Patients

Since its inception (Hounsfield, 1973), computerised tomography (CT) has become an invaluable diagnostic and research tool, particularly in clinical neurology and neurosurgery. Clinically, CT has proved useful in differentiating between ‘functional’ and ‘organic’ psychiatric disorders where it is particularly helpful in the diagnosis of potentially treatable organic disorders. For example, Owens et al (1980) found clinically unsuspected intracranial pathology in 12 of 136 chronic schizophrenic patients examined by CT and Roberts & Lishman (1984) found diagnosis, management, and/or prognosis were influenced in approximately 12% of cases referred by psychiatrists for CT imagining.

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