An Experimental Study of Pictures Produced by Acute Schizophrenic Subjects

1979 ◽  
Vol 134 (2) ◽  
pp. 195-200 ◽  
Author(s):  
Stephen Russell-Lacy ◽  
Victoria Robinson ◽  
Janet Benson ◽  
Janet Cranage
Keyword(s):  
Experimental Study ◽  
Differential Diagnosis ◽  
Psychiatric Diagnosis ◽  
Psychiatric Patients ◽  
Psychiatric Admission ◽  
Three Samples ◽  
Colour Variety

SummaryThe purpose of this study was to examine the validity of assessing pictures produced by acute schizophrenic subjects as a technique in differential diagnosis. It was hypothesized that art productions by schizophrenics differ from those both by other acute psychiatric patients and by ‘normals'. Coloured slides were made from pictures produced in standardized conditions by three samples each of thirty subjects. It was found that repetition of abstract forms was the only factor studied to be associated specifically with schizophrenia; whereas the presence of pictorial imbalance, overelaboration, childlike features, uncovered space, detail and colour variety were found to be associated with psychiatric admission irregardless of diagnosis. Doubt is cast on the use of art as a technique in differential psychiatric diagnosis.

Decision Support for Psychiatric Diagnosis Based on a Simple Questionnaire

1997 ◽  
Vol 36 (04/05) ◽  
pp. 349-351
Author(s):  
H. Mizuta ◽  
K. Kawachi ◽  
H. Yoshida ◽  
K. Iida ◽  
Y. Okubo ◽  
...  
Keyword(s):  
Neural Network ◽  
Decision Support ◽  
Psychiatric Diagnosis ◽  
Psychiatric Patients ◽  
Bayesian Classifier ◽  
Neural Network Classifier ◽  
Correct Decision ◽  
Neurotic Disorders ◽  
The Neural Network

Abstract:This paper compares two classifiers: Pseudo Bayesian and Neural Network for assisting in making diagnoses of psychiatric patients based on a simple yes/no questionnaire which is provided at the outpatient’s first visit to the hospital. The classifiers categorize patients into three most commonly seen ICD classes, i.e. schizophrenic, emotional and neurotic disorders. One hundred completed questionnaires were utilized for constructing and evaluating the classifiers. Average correct decision rates were 73.3% for the Pseudo Bayesian Classifier and 77.3% for the Neural Network classifier. These rates were higher than the rate which an experienced psychiatrist achieved based on the same restricted data as the classifiers utilized. These classifiers may be effectively utilized for assisting psychiatrists in making their final diagnoses.

Narcolepsy: Differential Diagnosis or Etiology in Some Cases of Bipolar Disorder and Schizophrenia?

CNS Spectrums ◽  
2003 ◽  
Vol 8 (2) ◽  
pp. 120-126 ◽  
Author(s):  
Alan B. Douglass
Keyword(s):  
Bipolar Disorder ◽  
Differential Diagnosis ◽  
Psychiatric Patients ◽  
Human Leukocyte ◽  
Sleep Paralysis ◽  
Leukocyte Antigen ◽  
Psychotic Features ◽  
Hypnagogic Hallucinations ◽  
Rule Out

AbstractDoes narcolepsy, a neurological disease, need to be considered when diagnosing major mental illness? Clinicians have reported cases of narcolepsy with prominent hypnagogic hallucinations that were mistakenly diagnosed as schizophrenia. In some bipolar disorder patients with narcolepsy, the HH resulted in their receiving a more severe diagnosis (ie, bipolar disorder with psychotic features or schizoaffective disorder). The role of narcolepsy in psychiatric patients has remained obscure and problematic, and it may be more prevalent than commonly believed. Classical narcolepsy patients display the clinical “tetrad”—cataplexy, hypnagogic hallucinations, daytime sleep attacks, and sleep paralysis. Over 85% also display the human leukocyte antigen marker DQB10602 (subset of DQ6). Since 1998, discoveries in neuroanatomy and neurophysiology have greatly advanced the understanding of narcolepsy, which involves a nearly total loss of the recently discovered orexin/hypocretin (hypocretin) neurons of the hypothalamus, likely by an autoimmune mechanism. Hypocretin neurons normally supply excitatory signals to brainstem nuclei producing norepinephrine, serotonin, histamine, and dopamine, with resultant suppression of sleep. They also project to basal forebrain areas and cortex. A literature review regarding the differential diagnosis of narcolepsy, affective disorder, and schizophrenia is presented. Furthermore, it is now possible to rule out classical narcolepsy in difficult psychiatric cases. Surprisingly, psychotic patients with narcolepsy will likely require stimulants to fully recover. Many conventional antipsychotic drugs would worsen their symptoms and make them appear to become a “chronic psychotic,” while in fact they can now be properly diagnosed and treated.

The Early Differential Diagnosis of Postoperative Anuria Using the Radioactive Renogram: An Experimental Study

1961 ◽  
Vol 86 (2) ◽  
pp. 276-279 ◽  
Author(s):  
Vincent J. O’Conor ◽  
Joseph V. Libretti ◽  
John T. Grayhack
Keyword(s):  
Experimental Study ◽  
Differential Diagnosis

Culture and mental disorders

2017 ◽  
Vol 41 (S1) ◽  
pp. S517-S517
Author(s):  
A. Adrián ◽  
C. Noval Canga ◽  
H. Rebeca ◽  
S. Isabel ◽  
G. Sofía ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Case Report ◽  
Mental Disorders ◽  
Psychiatric Diagnosis ◽  
Emergency Service ◽  
Psychotic Symptoms ◽  
Sociocultural Factors ◽  
Psychiatric History ◽  
Sexual Content ◽  
Competing Interest

ObjectivesShow with a case report how psychiatric pathology may face differential diagnosis problems when sociocultural aspects are involved.Methods and materialsSeventy-three year old man, born in Colombia. During the last two months, he had come many times to the emergency service due to behavioural changes. He does not have previous psychiatric history. His daughter refers that one of the patient's sisters has been diagnosed of “mystical madness”. The previous days he abandoned his medical treatment saying that he “gets in touch with his wife and that he wants to meet her”. Since his wife's dead, he had presented an excessively adapted behaviour, without grief symptoms. The first hospitalization day he said we wanted to get married with one of his daughters, with a sexual content speech, being able to get emotional when he spoke about his dead wife. Now the patient is under frequent reviews, and it is thought the differential diagnosis of depression with psychotic symptoms, due to the lack of symptoms remission.ConclusionWhenever we face different psychiatric diagnosis we don’t keep in mind some sociocultural factors, which could be masked and raise different doubts. It is important to keep in mind that each country or ethnical have their own cultural habits which are going to deeply influence patient's personality.Disclosure of interestThe authors have not supplied their declaration of competing interest.

The Assessment of Social Breakdown in Newly-Admitted Psychiatric Patients

1975 ◽  
Vol 127 (5) ◽  
pp. 417-431 ◽  
Author(s):  
W. R. L. Clemmey ◽  
D. Kennard ◽  
B. M. Mandelbrote
Keyword(s):  
Social Class ◽  
Psychiatric Hospital ◽  
Social Group ◽  
Psychiatric Diagnosis ◽  
Quantitative Assessment ◽  
Psychiatric Patients ◽  
Level Of Functioning ◽  
Social Breakdown ◽  
The Social ◽  
The Family

SummaryThis paper presents a study of patients' social and domestic functioning preceding admission to a psychiatric hospital. A method is described for the quantitative assessment of ‘social breakdown’ in the areas of work, domestic performance and social group activity, based on reports from the patient and from another household member. Complementary changes in the domestic tasks carried out by other family members are also investigated. The sample consisted of 28 women and 17 men. Their usual level of functioning and their degree of breakdown are related to psychiatric diagnosis on admission, to the patient's position within the family and to the social class of the household. Discrepancies between reports are also investigated in relation to these variables.

Diagnosis of Disruptive Behavior Disorders using the Millon Adolescent Personality Inventory

1993 ◽  
Vol 73 (3_part_1) ◽  
pp. 895-914
Author(s):  
Lance Roderic Hart
Keyword(s):  
Differential Diagnosis ◽  
Disruptive Behavior ◽  
Behavior Disorders ◽  
Disruptive Behavior Disorders ◽  
Behavior Disorder ◽  
Personality Inventory ◽  
Disruptive Behavior Disorder ◽  
Three Samples ◽  
Millon Adolescent Personality Inventory ◽  
Adolescent Personality

Millon Adolescent Personality Inventory differential diagnosis of disruptive behavior disorder vs no behavior disorder was investigated. Results were twice cross-validated. Millon adolescent Scales 4, 5, 6, G, SS, and TT were closely related to diagnosis of behavior disorder. Two psychometric rules averaged 70% hits and 35% false positives over three samples, Rule 1 of >2 elevations (baserate score >63) among Scales 6-G-SS-TT and Rule 2 of Scale 4 elevated with Scale 5 or with one of 6-G-SS-TT. An ancillary rule was highly specific to behavior disorder (90%). Two broad dimensions or factors appeared to be represented in the key scales; Scales 4 and 5 exemplified a histrionic-narcissistic factor, while the 6-G-SS-TT combination typified behavioral conflict and instability.

Experimental Study on Pneumatic Classification of Fine-Metal-Powder

2012 ◽  
Vol 524-527 ◽  
pp. 983-986
Author(s):  
Rui Xin Ma ◽  
Chang Sheng Shi ◽  
Xin Xi Zhang
Keyword(s):  
Experimental Study ◽  
Powder Metallurgy ◽  
Metal Powder ◽  
Air Flow ◽  
Fine Powder ◽  
Coarse Powder ◽  
Pneumatic Classification ◽  
Three Samples ◽  
Metallurgy Industry

With the development of powder metallurgy industry, the fine-metal-powder classification becomes one of the vital techniques in powder technology. A pneumatic classifier without screen and mechanical moving parts is designed and developed. Three samples are used in the pneumatic classification experiments and the separation sizes are 45μm， 45μm and 30μm, respectively. The oversize ratio in fine powder can be reduced to less than 5% and the undersize ratio in coarse powder less than 15% when the air flow is suitable, simultaneously. The classification effect is satisfactory.

scholarly journals Subtyping of psychiatric disorders: implications for drug development

2002 ◽  
Vol 4 (4) ◽  
pp. 329-335
Keyword(s):  
Drug Development ◽  
Psychiatric Disorders ◽  
Pharmacological Treatment ◽  
Psychiatric Diagnosis ◽  
Psychiatric Patients

Psychiatric diagnosis suffers from being based on phenomenology and not on pathophysiology. Data are presented showing that psychiatric patients reveal consistent quantitative electroencephalographic abnormalities, such that they can be separated from normals and from each other. Clustering these pathophysiological groupings reveals an underlying variability, which permits useful subtyping. Data are presented relating subtyping to pharmacological treatment.

scholarly journals Experimental Study for Ability to Use Plaster of Pairs Instead of Normal Concrete

2018 ◽  
Vol 7 (4.20) ◽  
pp. 185
Author(s):  
Hashim Tariq Hashim ◽  
Dr. Mohammed Mosleh Salman
Keyword(s):  
Experimental Study ◽  
Point Load ◽  
Reinforcement Ratio ◽  
Curing Time ◽  
Normal Concrete ◽  
Aggregate Concrete ◽  
Plaster Of Paris ◽  
The Third ◽  
Three Samples ◽  
Structural Parts

This research investigated the possibility of using plaster of Paris instead of cement in some internal structural parts and non-exposed to moisture by casting (nine) samples divided in three group. First group was normal concrete, second was plaster of pairs concrete group and finally plaster of Paris with aggregate concrete. All of them have the same dimension (1000×150×200) mm and the same reinforcement ratio. Group one was cured with water while the rest were isolated in a place far away from the moisture. All sample designed to be failed in flexural. The process of testing was divided in two methods; for properties of material used as explain above and for samples tested under two-point load at several curing time (7,28 and 90) days.  Each period consists of three samples one from each group. The result showed that the third group (plaster of Paris with aggregate concrete) approximately closer to normal concrete in applying a load by the ratio of (98%) in 7 days, (87%) in 28 days and (94%) in 90 days. While the second group (plaster of pairs concrete) was acceptable when compared with normal concrete because of missing aggregate.  

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