Signs Of Psychosis Research Articles

Mild cognitive impairment

Mild cognitive impairment (MCI) is a syndrome that spans the area between normal ageing and dementia. It is classified into amnestic and non-amnestic types, both with two subtypes: single domain and multiple domains. Prevalence of MCI depends on criteria and population and can vary from 0.1 to 42% persons of older age. In contrast to dementia, cognitive deterioration is less severe and activities of daily living are preserved. Most impaired higher cognitive functions in MCI are memory, executive functions, language, visuospatial functions, attention etc. Also there are depression, apathy or psychomotor agitation, and signs of psychosis. Aetiology of MCI is multiple, mostly neurodegenerative, vascular, psychiatric, internistic, neurological, traumatic and iatrogenic. Persons with amnestic MCI are at a higher risk of converting to Alzheimer's disease, while those with a single non-memory domain are at risk of developing frontotemporal dementia. Some MCI patients also progress to other dementia types, vascular among others. In contrast, some patients have a stationary course, some improve, while others even normalize. Every suspicion of MCI warrants a detailed clinical exploration to discover underlying aetiology, laboratory analyses, neuroimaging methods and some cases require a detailed neuropsychological assessment. At the present time there is no efficacious therapy for cognitive decline in MCI or the one that could postpone conversion to dementia. The treatment of curable causes, application of preventive measures and risk factor control are reasonable measures in the absence of specific therapy.

Surprising Number of People Show Signs of Psychosis

Surprising Number of People Show Signs of Psychosis

Schizophrenia and Co-Occurring Substance Use Disorder

A 29-year-old Caucasian man was brought to the emergency department by the police after he was found wandering barefoot through the snow on Main Street. The police had been called after passers-by reported that the man seemed intoxicated and was acting strangely. When an officer approached the man, he became belligerent and agitated and angrily exclaimed that they had no reason to question him. Using some force, the police brought him to the emergency department. The psychiatrist who interviewed him noted a strong smell of alcohol and signs of psychosis; the man demonstrated a clear thought disorder, and he appeared to be responding to internal voices. A physical examination was unremarkable. His urine was positive for cannabis by dipstick test, and an alcohol breath test was positive. Given the absence of further information about him, the patient was admitted to the crisis service, where he promptly fell asleep. Four hours later, he was less intoxicated. A history was obtained and a mental status examination was performed. As far as could be determined, he had been receiving treatment at a local mental health center, but he had stopped taking his medication (risperidone) 4 weeks earlier and had relapsed to heavy use of alcohol and cannabis. During this period he had been essentially homeless, a situation that presented increasing difficulty for him given the recent cold weather and snow. How commonly does schizophrenia cooccur with substance use disorder? What are the implications of substance use for the course of the psychosis? What do we understand about the basis of the co-occurrence of substance use disorder and schizophrenia? How best can a psychiatrist work with this type of a patient? What medications are most likely to be helpful?

Schizophrenia and Co-Occurring Substance Use Disorder

Schizophrenia and Co-Occurring Substance Use Disorder

Outpatient vs. comprehensive first-episode psychosis services, a 5-year follow-up of Soteria Nacka

Three years experience of an outpatient unit for first-episode psychosis showed that most of the patients at some point became hospitalized in a psychiatric ward with discontinuity in care as a consequence. Adding “need-adapted” inpatient care in the form of a small and calm crisis home guaranteed continuity in approach and treatment, as the same caregivers staffed the inpatient and outpatient parts of Soteria. Information on early signs of psychosis was given to other units of the psychiatric clinic and to general practitioners. As the organization was considerably changed from that point of time, the patients could be divided into two separate groups. The aim of the present study was to follow the patients in the two groups for 5 years, comparing the outcome. The results showed that easily accessible need-adapted treatment with integrated overnight care might be advantageous for first-episode psychotic patients. The duration of untreated psychosis was shorter and the outcome better.

Psychotic Symptoms With Underlying Graves Disease

Psychotic Symptoms With Underlying Graves Disease

Der Einsatz von Amisulprid bei Patienten mit Morbus Huntington

Amisulpride is a substituted benzamide derivative with atypical antipsychotic properties and low side effects. We report four cases of patients with clinically and genetically established Huntington's disease and signs of psychosis who were treated with Amisulpride. Two patients developed extrapyramidal side effects due to the treatment. The antipsychotic therapy of all patients was effective. Due to degeneration of striatal neurons patients suffering from Huntington's disease react early with development of extrapyramidal side effects after therapy with amisulpride.

Look for Signs of Psychosis in Mother When Evaluating Infanticidal Thoughts

Look for Signs of Psychosis in Mother When Evaluating Infanticidal Thoughts

Components of behavioral pathology in dementia

The purpose of this study was to examine the occurence of the noncognitive behavioral and psychological symptoms and signs of dementia in a geriatric chronic-care hospital and to separate agitated and affective components of behavioral pathology using factor analysis. The frequency and severity of Alzheimer's disease, vascular dementia, mixed dementia and Lewy Body dementia was assessed in 145 consecutive residents of a chronic-care hospital. The presence of noncognitive behavioral symptoms was evaluated with the Behavioral Pathology in Alzheimer's Disease Rating Scale (BEHAVE-AD) and the Cohen-Mansfield Agitation Inventory (CMAI). A Factor analysis on the BEHAVE-AD subscores was performed to create symptom clusters. Analysis of covariance and post hoc tests were used to compare means of factor variables between different types of dementia. Statistical analysis showed a significant correlation between severity of dementia and BEHAVE-AD total score and between severity of dementia and CMAI total score. Factor analysis with Varimax rotation revealed the presence of three behavioral subsyndromes: agitation, affectivity and day/night disturbances. The finding of three factors of behavioral pathology in demented patients reflects the possibility that different etiological mechanisms could explain the expression of the symptoms and signs of psychosis in demented patients.

Detecting early signs of psychosis. Vignettes presented to professionals in primary healthcare and psychiatry

Among personnel in primary healthcare and psychiatric care, the ability to detect early signs of psychosis was examined and compared. Differences due to sex, age, profession or time in the profession were explored. Three different vignettes concerning patients with mental illness were presented to the respondents, and every respondent was to mark what they thought were early signs of psychosis in the vignettes. The findings were compared with a pre-set standard of symptoms and signs. Healthcare personnel from two different administrative districts, Umeå and Örnsköldsvik in northern Sweden, participated in the study. The response rate was 77%, but for district nurses in the administrative district of Umeå it was only 25%, so therefore complementary interviews with nine district nurses in that district, representing the drop-outs, were performed. There was no difference whatsoever in ability to detect early signs of psychosis between personnel in primary healthcare and psychiatric care; nor were there any significant differences due to sex, age, profession or time in their profession. Detecting early signs of psychosis requires training and the ability to communicate with patients, as well as a special sensitivity to psychiatric conditions. This can be achieved by enhancing accessibility and continuity of primary healthcare for these patients. Furthermore, a greater sensitivity to early signs of psychosis must be created among all healthcare personnel. The co-operation between primary healthcare and psychiatric care must increase. Primary care physicians need opportunities to see patients over time in order to correctly interpret early signs and symptoms of psychiatric illness.

Obstetrical complications and subsequent schizophrenia in adolescent and young adult offsprings: is there a relationship?

Schizophrenia is a psychiatric disease affecting around 1% of the population, the negative signs of which are correlated with inactivity of the prefrontal dorsolateral cortex, while an increased, more deeply localized, activity in the mesolimbic pathway may explain the positive signs. Several events occurring during pregnancy are likely to be involved in its genesis: hormonal supplementation by diethylstilbestrol, severe maternal denutrition, exposure to influenza virus, repeated psychological stress. From multicentric studies and meta-analyses in the psychiatric literature, the risk of schizophrenia appears to be multiplied by two if pregnancy is complicated, mainly by diabetes, Rhesus incompatibility, bleeding, preeclampsia, premature rupture of membranes and preterm birth. When delivery is linked to an abnormal presentation or happens via a caesarean birth for acute foetal distress, the time when the first signs of psychosis appear seems to be earlier in adolescence or in early adulthood. Cerebral imaging of schizophrenic patients shows ventriculomegaly and gray matter reduction, mainly in hippocampal volumes and in the dorsolateral prefrontal cortex. Similar alterations in the neuronal pathways have been experimentally reproduced in rats after repeated prenatal stress and perinatal hypoxia. A region on the distal portion of chromosome 1 has shown evidence for linkage to schizophrenia. Therefore, a two factor model seems to be able to explain the onset of schizophrenia in which obstetrical complications may interact with a genetic liability and in which the consequences of hypoxic events may lie on a continuum ranging from cerebral palsy in some children to subtle cognitive and behavioural disturbances in others.

Hallucinations in Latino psychiatric outpatients: a preliminary investigation

Accuracy of diagnosis and efficacy of treatment depend on recognition of cultural variation in symptomatology of mental illness. Caribbean Latinos have been observed to present in outpatient settings with a higher than expected prevalence of hallucinations; however little is known about this phenomenon and whether it reflects psychotic illness. This study is a retrospective record review of 54 Spanish-speaking psychiatric outpatients who were evaluated in their own language. Demographic and clinical data were extracted from the records and relationships to hallucinations were examined. Of the total sample, 46% reported hallucinations, and 84% of these were simple (e.g., hearing one's name called). Thought disorder was diagnosed in only 9% of the sample. Caribbean Latinos presented to this outpatient mental health setting with a high rate of perceptual symptoms in the absence of other signs of psychosis. Since hallucinations are known to be nonspecific, the symptoms reported in this patient sample are best understood as nonpsychotic hallucinations. Further research is necessary to clarify the epidemiological and cultural aspects of this phenomenon, and to guide treatment.

Neurological soft signs in psychosis and their evolution over the first four years of illness

Research literature supports the notion that more people diagnosed with schizophrenia are born during the winter months than other seasons [O'Hare A, Walsh D, Torrey F. Seasonality of schizophrenia births in Ireland. Br J Psychiatry 1980;137:74–7; Pulver AE, Stewart W, Carpenter WT, Jr., Childs B. Risk factors in schizophrenia: season of birth in Maryland, USA. Br J Psychiatry 1983;143:389–96.]. Researchers have postulated that this surge in winter-birth schizophrenia may be related to increases in viral infectious such as influenza and measles [Watson CG, Kucala T, Tilleskjor C, Jacobs L. Schizophrenic birth seasonality in relation to incidence of infectious diseases and temperature extremes. Arch Gen Psychiatry 1984;41:85–90; Mednick SA, Machon RA, Huttunen MO, Bonnett D. Adult schizophrenia following prenatal exposure to an influenza epidemic. Arch Gen Psychiatry 1988;45:189–92.]. However, data supporting significant relationships between infectious disease and schizophrenia incidence has been equivocal [Kendell R, Kemp I. Maternal influenza in the etiology of schizophrenia. Arch Gen Psychiatry 1989;46:878–82; McGrath J, Castle D. Does influenza cause schizophrenia? A five year review. Aust N Z J Psychiatry 1995;29:23–31.]. The purpose of this study was to replicate and expand previous studies by examining seasonal and infectious disease influences on schizophrenia prevalence. It was hypothesized that: (1) there would be an increase in schizophrenia prevalence during the winter months; and (2) that a significant amount of variability in schizophrenia birthrates would be accounted for by rates of influenza and measles. A Georgia Medicaid database (N=746,615) and statewide infectious disease tables were used to identify correlations. Medicaid recipients were divided into schizophrenia (n=11,736) and non-schizophrenia (n=734,879) groups. A ratio of schizophrenic recipients to non-schizophrenic recipients was calculated for each birth cohort represented by each month of the year from 1948–1965. Multiple regression analyses indicated a significant relationship between winter season and schizophrenia incidence. However, neither influenza nor measles was predictive of schizophrenia prevalence. These findings were made using one of the largest sample of schizophrenic individuals in the literature to date. Limitations of the study are discussed, including the use of seasonal and prevalence correlations without data on patient linked maternal infections.

Characterising psychosis in the Australian National Survey of Mental Health and Wellbeing Study on Low Prevalence (psychotic) Disorders

Objective: This study examines the factorial structure of symptoms and signs in psychosis in data from the Study on Low Prevalence (psychotic) Disorders which is part of the National Survey of Mental Health and Wellbeing, Australia 1997–1998.Method: The present study examined a wide variety of symptoms taken from the Schedules for Clinical Assessment in Neuropsychiatry items and the substance use items in the Diagnostic Interview for Psychosis, an instrument specially constructed for the national study. The instrument was applied to 980 community and hospital subjects with a wide range of psychotic illness diagnoses. The data were factor analysed and scales of ‘domains of psychopathology’ derived.Results: The data were best fitted by five principal factors (‘domains’) which can be approximately labelled dysphoria, positive symptoms, substance use, mania and negative symptoms/incoherence. These factors together explained 55.4% of variance in symptoms. Solutions with more numerous factors did not improve the representation.Conclusion: The five domains successfully characterise a large part of the variance in psychopathology found in the present study of low prevalence (psychotic) disorders. The approach allows sufferer's symptom range and severity to be well expressed without multiple comorbid diagnoses or the limits imposed by categorical diagnosis. Knowledge of alternative dimensional representations of psychopathology may usefully complement our use of categories, enhance awareness of symptoms and ensure that important psychopathology is heeded in practice and research.

Characterising psychosis in the Australian National Survey of Mental Health and Wellbeing Study on Low Prevalence (psychotic) Disorders.

This study examines the factorial structure of symptoms and signs in psychosis in data from the Study on Low Prevalence (psychotic) Disorders which is part of the National Survey of Mental Health and Wellbeing, Australia 1997-1998. The present study examined a wide variety of symptoms taken from the Schedules for Clinical Assessment in Neuropsychiatry items and the substance use items in the Diagnostic Interview for Psychosis, an instrument specially constructed for the national study. The instrument was applied to 980 community and hospital subjects with a wide range of psychotic illness diagnoses. The data were factor analysed and scales of 'domains of psychopathology' derived. The data were best fitted by five principal factors ('domains') which can be approximately labelled dysphoria, positive symptoms, substance use, mania and negative symptoms/incoherence. These factors together explained 55.4% of variance in symptoms. Solutions with more numerous factors did not improve the representation. The five domains successfully characterise a large part of the variance in psychopathology found in the present study of low prevalence (psychotic) disorders. The approach allows sufferer's symptom range and severity to be well expressed without multiple comorbid diagnoses or the limits imposed by categorical diagnosis. Knowledge of alternative dimensional representations of psychopathology may usefully complement our use of categories, enhance awareness of symptoms and ensure that important psychopathology is heeded in practice and research.

Clinical features of schizophrenia and linkage to chromosomes 5q, 6p, 8p, and 10p in the Irish Study of High-Density Schizophrenia Families.

Schizophrenia is clinically heterogeneous. Recent linkage studies suggest that multiple genes are important in the etiology of schizophrenia. The authors examined the hypothesis of whether the clinical variability in schizophrenia is due to genetic heterogeneity. Using data from the Irish Study of High-Density Schizophrenia Families (N=265 pedigrees; N=1,408 individuals), the authors attempted to predict, from major symptoms and signs of psychosis, evidence for linkage within families for schizophrenia-related disorders to chromosomal regions 5q21-5q31, 6p24-6p22, 8p22-8p21, and 10p15-10p11. No substantial evidence was found for associations between clinical features of schizophrenia and linkage to chromosomes 5q, 6p, or 10p. However, affected individuals from families with evidence for linkage to 8p had significantly more affective deterioration, poorer outcome, more thought disorder, and fewer depressive symptoms than affected individuals from the other families in the study. These results raise the possibility that the putative susceptibility gene for schizophrenia localized in the 8p22-8p21 region may predispose individuals to the core dementia-praecox syndrome described by Kraepelin more than 100 years ago.

General Practice Recruitment for People at Risk of Schizophrenia: The Buckingham Experience

Objective The process of detecting people at high risk of schizophrenia from a community sample is a major challenge for prevention of psychotic disorders. The aim of this paper is to describe early detection procedures that can be implemented in primary care settings. Methods A selected literature review is supplemented by experiences and data obtained during the Buckingham Integrated Mental Health Care Project. Results General medical practitioners have been favoured as the agents most likely to prove helpful in detecting the key risk factors that predict the onset of schizophrenic disorders, as well as in recognising the earliest signs and symptoms of these conditions. However, the practical problems of screening for multiple and subtle risk factors in general practice are substantial, and general practitioners (GPs) often have difficulty recognising the earliest signs of a psychotic episode. A range of strategies to assist GPs detect early signs of psychosis in their patients are considered. Conclusions It is feasible to implement primary care setting early detection procedures for people at risk of schizophrenia. Implementation is aided by the use of a brief screening questionnaire, training sessions and case supervision; and increased collaboration with mental health services and other community agencies.