10,820 results match your criteria Delusions of Parasitosis


Gray Matter Changes Associated With the Development of Delusions in Alzheimer Disease.

Am J Geriatr Psychiatry 2018 Oct 2. Epub 2018 Oct 2.

Keenan Research Centre for Biomedical Research (WQ, TAS, NWC, DGM, JJB, CEF), Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto; the Institute of Medical Sciences (WQ, TAS, TKR, CEF), University of Toronto, Toronto; Department of Psychiatry (CEF), Faculty of Medicine, University of Toronto, Toronto. Electronic address:

Objective: Delusions affect approximately a third of Alzheimer disease (AD) patients and are associated with poor outcomes. Previous studies investigating the neuroanatomic correlates of delusions have yet to reach a consensus, with findings of reduced volume across all lobes, particularly in frontal regions. The current study examined the gray matter (GM) differences associated with delusions in AD. Read More

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October 2018

Delusion, possession and religion.

Nord J Psychiatry 2018 Nov 29:1-3. Epub 2018 Nov 29.

b Department of Psychosis Studies , King's College , London , UK.

Background: Religion and psychiatry may be both considered to be two different ways of explaining the unknown, of responding to questions about the meaning of life, and of bringing healing.

Aims: To discuss the border between religion and psychiatry.

Method: This lecture explores the interface between religion and psychiatry and discusses the border between soul and mind. Read More

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November 2018
1 Read

A psychometric investigation of the Chinese version of the Internal, Personal and Situational Attributions Questionnaire (C-IPSAQ).

Transl Psychiatry 2018 Nov 28;8(1):256. Epub 2018 Nov 28.

Center for Psychiatric Rehabilitation of Boston University, Boston, MA, USA.

The IPSAQ is a self-administered instrument designed to evaluate individuals' attributional style (AS). The purpose of this study is to examine the psychometric properties of the Chinese version of the Internal, Personal and Situational Attributions Questionnaire (C-IPSAQ). We also investigate if patients with depression and patients with delusions exhibit attributional biases. Read More

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November 2018
1 Read

Exploratory comparison of auditory verbal hallucinations and other psychotic symptoms among youth with borderline personality disorder or schizophrenia spectrum disorder.

Early Interv Psychiatry 2018 Nov 28. Epub 2018 Nov 28.

Orygen, The National Centre of Excellence in Youth Mental Health, Melbourne, Victoria, Australia.

Objective: This study explored phenomenological aspects of auditory verbal hallucinations (AVH) and other psychotic symptoms among youth with borderline personality disorder (BPD).

Methods: Sixty-eight outpatients, aged 15 to 25 years, were categorized into three groups according to their primary Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) diagnosis and AVH symptom profile; BPD + AVH (n = 23), schizophrenia spectrum disorder (SZ) + AVH (n = 22) and BPD with no AVH (n = 23).

Results: No differences in AVH were found between BPD + AVH and SZ + AVH. Read More

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November 2018
1 Read

Postictal Mania Versus Postictal Psychosis.

Cureus 2018 Sep 19;10(9):e3338. Epub 2018 Sep 19.

Psychiatry, Sindh Medical, Ontario, CAN.

PIM (postictal mania) or PIP (postictal psychosis) usually comes on after a single episode or a seizure cluster of generalized tonic-clonic or complex partial secondarily generalized seizures. Patients maintain a lucid interval of clear consciousness which precedes a psychotic episode. The symptoms may include insomnia, hallucinations, delusions, elated expansive mood, euphoria, and distractibility. Read More

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September 2018
1 Read

Gender differences among homicide offenders with schizophrenia in Hunan Province, China.

Psychiatry Res 2018 Nov 19;271:124-130. Epub 2018 Nov 19.

Mental Health Institute of the Second Xiangya Hospital, Central South University, National Clinical Research Center on Mental Disorders & National Technology Institute on Mental Disorders, Hunan Key Laboratory of Psychiatry and Mental Health, 139 Middle Renmin Road, Changsha, Hunan 410011, China. Electronic address:

This study aimed to understand the demographic, clinical and criminological characteristics of Chinese homicide offenders with schizophrenia from a gender-based perspective. Information on all homicide offenders with schizophrenia who received forensic psychiatric assessment between 2010 and 2016 in Hunan Province, China, was systematically retrieved (n = 669). Gender differences in the above characteristics were analyzed, and independent correlates of homicide were explored. Read More

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November 2018
3 Reads

Somatic delusions as motivated beliefs?

Aust N Z J Psychiatry 2018 Nov 22:4867418815981. Epub 2018 Nov 22.

ARC Centre of Excellence in Cognition and its Disorders, Department of Cognitive Science, Macquarie University, Sydney, NSW, Australia.

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November 2018
1 Read

Memantine treatment for Japanese patients with moderate to severe Alzheimer's disease: a meta-analysis of double-blind, randomized, placebo-controlled trials.

Neuropsychiatr Dis Treat 2018 30;14:2915-2922. Epub 2018 Oct 30.

Department of Psychiatry, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan,

Purpose: Although previous meta-analyses of randomized trials in the world literature have provided strong evidence that supports the efficacy and safety of memantine for the treatment of patients with Alzheimer's disease (AD), it is unclear whether the drug is beneficial in the treatment of Japanese patients with moderate to severe AD because of differences in the formulation and regimen of memantine and the cholinesterase inhibitor (ChEI) used in combination with memantine between the drugs made in Japan and those made in other countries. To address this issue, we conducted a meta-analysis on the efficacy and safety of memantine using data from only double-blind, randomized, placebo-controlled trials (DBRPCTs) in Japan on Japanese patients with moderate to severe AD.

Patients And Methods: Our primary analysis was conducted using data from both memantine monotherapy (memantine vs placebo) and memantine combination therapy (memantine+ChEI vs ChEI+placebo) studies. Read More

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October 2018
2 Reads

Treatment-Induced Delusions of Infestation Associated with Increased Brain Dopamine Levels.

Acta Derm Venereol 2018 Nov 21. Epub 2018 Nov 21.

Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, 33136 Miami, USA.

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November 2018

Metacognitive Interpersonal Therapy for Treating Persecutory Delusions in Schizophrenia.

Am J Psychother 2018 Nov 21:appipsychotherapy20180039. Epub 2018 Nov 21.

Center for Metacognitive Interpersonal Therapy, Rome (Salvatore, Buonocore, Ottavi, Popolo, Dimaggio); Humanitas, School of Psychotherapy, Rome (Salvatore, Popolo); Istituto A. T. Beck, School of Cognitive Behavioral Therapy, Rome (Ottavi, Dimaggio).

A persecutory delusion (PD) is a person's false belief that others are focusing their attention on him or her with malevolent intentions, which often results in intense anxiety and significant disruption of daily life. PDs are common in schizophrenia, and many patients with schizophrenia do not respond well to current pharmacological treatments. Therefore, effective psychological treatments are needed. Read More

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November 2018
2 Reads

Folie à deux and homicide: Literature review and study of a complex clinical case.

Int J Law Psychiatry 2018 Nov - Dec;61:30-39. Epub 2018 Oct 13.

Service de pédopsychiatrie, CHU Sainte Marguerite, 270 boulevard de Sainte Marguerite, 13274 Marseille Cedex 9, France; Faculté de medecine de Marseille, Aix-Marseille Université, France. Electronic address:

Folie à deux is a psychiatric illness involved in homicides.

Objective: To study the mechanisms leading to homicide and determine homicide risk factors in folie à deux patients through a literature review and the study of a complex clinical case.

Materials And Methods: We included articles available on PubMed, ScienceDirect or Cairn that address the forensic implications of folie à deux. Read More

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October 2018
2 Reads

Use of psychotropic drugs in the dermatology patient: When to start and stop?

Clin Dermatol 2018 Nov - Dec;36(6):748-755. Epub 2018 Aug 16.

Department of Psychiatry, Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA. Electronic address:

Dermatologists often find themselves treating patients with psychiatric disorders, most commonly anxiety and depression, in the context of skin disease. The psychiatric condition may either be present before the skin condition developed and exacerbate it or, in some cases, even create it (eg, delusions of parasitosis). Alternatively, the psychiatric condition may occur subsequent to the development of the dermatologic condition. Read More

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August 2018
8 Reads

Cognitive Behavioural Therapy for Psychosis: A Health Technology Assessment.

Authors:

Ont Health Technol Assess Ser 2018 24;18(5):1-141. Epub 2018 Oct 24.

Background: Cognitive behavioural therapy (CBT) for psychosis is a distinct type of psychotherapy that has been recommended together with antipsychotic drugs and comprehensive usual care in the management of schizophrenia, a complex mental health disorder associated with a high economic and societal burden. The objectives of this report were to assess the effectiveness, harms, cost-effectiveness, and lived experience of CBT for psychosis in improving outcomes for adults with a primary diagnosis of schizophrenia.

Methods: We performed literature searches on March 28 and April 5, 2017, and undertook a qualitative synthesis of systematic reviews of the clinical and economic literature comparing CBT for psychosis with any comparator interventions (e. Read More

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October 2018
5 Reads

Psychotic like experiences as part of a continuum of psychosis: Associations with effort-based decision-making and reward responsivity.

Schizophr Res 2018 Nov 12. Epub 2018 Nov 12.

Department of Psychological & Brain Sciences, Washington University in St. Louis, St. Louis, MO 63130, United States of America; Department of Psychiatry, Washington University School of Medicine, St. Louis, MO 63110, United States of America; Department of Radiology, Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO 63110, United States of America. Electronic address:

Research examining psychotic disorders typically involves comparison between individuals with a clinical disorder and healthy controls. However, research suggests that psychotic symptoms, such as delusions and hallucinations, may exist on a continuum ranging from variation in healthy individuals to diagnosable psychotic disorders. On this continuum, some individuals endorse occasional psychotic like experiences (PLEs) that do not cause sufficient impairment or distress to warrant a clinical diagnosis. Read More

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November 2018
2 Reads

The Development of Kraepelin's Mature Diagnostic Concepts of Paranoia (Die Verrücktheit) and Paranoid Dementia Praecox (Dementia Paranoides): A Close Reading of His Textbooks From 1887 to 1899.

JAMA Psychiatry 2018 Dec;75(12):1280-1288

Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond.

Over 12 years (1887-1899), in his second through sixth editions of his textbook Psychiatrie: Ein Lehrbuch für Studierende und Ärzte, Emil Kraepelin created, through an iterative, self-examining process, his mature concepts of Verrücktheit (paranoia) and Paranoide Formen Dementia Praecox. I seek in this essay to show this skilled nosologist at work. Four themes were prominent. Read More

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December 2018
1 Read

Testing models of post-traumatic intrusions, trauma-related beliefs, hallucinations, and delusions in a first episode psychosis sample.

Br J Clin Psychol 2018 Nov 13. Epub 2018 Nov 13.

Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Victoria, Australia.

Objective: There is increasing evidence that childhood trauma may play a role in the aetiology of psychosis. Cognitive models implicate trauma-related symptoms, specifically post-traumatic intrusions and trauma-related beliefs as primary mechanisms, but these models have not been extensively tested. This study investigated relationships between childhood trauma, psychotic symptoms (hallucinations and delusions), post-traumatic intrusions, and trauma-related beliefs while accounting for comorbid symptoms. Read More

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November 2018

Predominant polarity classification and associated clinical variables in bipolar disorder: A machine learning approach.

J Affect Disord 2018 Nov 6;245:279-282. Epub 2018 Nov 6.

Bipolar Disorder Research Program (PROMAN), Instituto de Psiquiatria, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, Rua Dr. Ovidio Pires de Campos, 785 - 3 andar / Ala norte / Ceapesq / Sala 4, 05403-010 São Paulo, Brazil.

Background: Bipolar disorder (BD) is a severe psychiatric disorder characterized by periodic episodes of manic and depressive symptomatology. Predominant polarity (PP) appears to be an important specifier of BD. The present study employed machine learning (ML) algorithms to accurately determine a patient´s PP without the inclusion of number and polarity of past episodes, while exploring associations between PP and demographic and clinical variables. Read More

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November 2018
3 Reads

[Delusions in Dementia].

Brain Nerve 2018 Nov;70(11):1139-1145

Kawasaki Memorial Hospital.

Delusion is a common neuropsychiatric symptom in dementia, especially in Alzheimer disease and dementia with Lewy bodies. Persecutory delusions are the most common, and include delusions of theft, jealousy, and abundant. Patients with persecutory delusions have impairment of the psychological processes mediating the formation and maintenance of normal social beliefs. Read More

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November 2018
4 Reads

Severe Agitation in Dementia: An Explorative Secondary Data Analysis on the Prevalence and Associated Factors in Nursing Home Residents.

J Alzheimers Dis 2018 Nov 3. Epub 2018 Nov 3.

German Center for Neurodegenerative Diseases (DZNE), Witten, Germany.

Background: The phenomena of severe agitation is not well understood and often not adequately treated.

Objective: This article determines the prevalence and associated factors of severe agitation in nursing home residents with dementia.

Methods: Secondary data analysis within an observational study in German nursing homes with n = 1,967 participants. Read More

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November 2018
9 Reads

Commentary: Role of the Endogenous Opiate System in Psychiatric Disorders Other Than Addiction.

Authors:
David A Kahn

J Psychiatr Pract 2018 Nov;24(6):432-433

KAHN: Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, NY.

Two case reports explore opiate use in relation to 2 different psychiatric disorders. In the first case report, the authors reported the finding that opiate abuse appeared to mitigate premorbid Tourette syndrome in a small series of patients with opiate addiction and that this benefit was maintained with medically supervised opiate agonist therapy. In the second case report, the authors noted a significant correlation between prescription opiate use and delusions of infestation in a large psychodermatology clinic (as well as a separate, stronger correlation with stimulant use). Read More

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November 2018
1 Read

Association Between Delusions of Infestation and Prescribed Narcotic and Stimulant Use.

J Psychiatr Pract 2018 Nov;24(6):428-431

ZHU: Keck School of Medicine, University of Southern California, Los Angeles, CA WERCHAN, ESCAMILLA: Department of Psychiatry, Dell Medical School at the University of Texas, Austin, TX SEBASTIAN: Ascension Texas Research Support Services, Austin, TX HOVINGA: Ascension Texas Research Support Services and The University of Texas at Austin College of Pharmacy, Austin, TX REICHENBERG: Department of Dermatology, Dell Medical School at the University of Texas, Austin, TX.

Objective: Patients diagnosed with delusions of infestation (DOI) at a psychodermatology clinic appeared to have a higher incidence of being prescribed narcotic or stimulant medications compared with the general dermatologic clinic population with chronic pruritic conditions. A retrospective study was conducted examining the correlation between patients with DOI and prescribed psychoactive medications.

Methods: Ninety-two patients with a diagnosis of DOI, seen at our University Psychodermatology Clinic, served as the study population. Read More

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November 2018

Jumping to conclusions at first onset of psychosis predicts longer admissions, more compulsory admissions and police involvement over the next 4 years: the GAP study.

Psychol Med 2018 Nov 5:1-11. Epub 2018 Nov 5.

Department of Psychosis Studies,Institute of Psychiatry, Psychology and Neuroscience, King's College London,London, UK.

Background: Jumping to conclusions (JTC), which is the proneness to require less information before forming beliefs or making a decision, has been related to formation and maintenance of delusions. Using data from the National Institute of Health Research Biomedical Research Centre Genetics and Psychosis (GAP) case-control study of first-episode psychosis (FEP), we set out to test whether the presence of JTC would predict poor clinical outcome at 4 years.

Methods: One-hundred and twenty-three FEP patients were assessed with the Positive and Negative Syndrome Scale (PANSS), Global Assessment of Functioning (GAF) and the probabilistic reasoning 'Beads' Task at the time of recruitment. Read More

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November 2018
3 Reads

Individualized Metacognitive Training (MCT+) Reduces Delusional Symptoms in Psychosis: A Randomized Clinical Trial.

Schizophr Bull 2018 Oct 30. Epub 2018 Oct 30.

Discipline of Psychiatry, University of Adelaide, Adelaide, Australia.

Individualized metacognitive training (MCT+) is a novel psychotherapy that has been designed to specifically target delusional beliefs in people with psychosis. It works by developing an awareness of the implausible content of delusional beliefs, while also targeting the cognitive biases that contribute to their formation and maintenance. It was expected that MCT+ would lead to significantly greater reductions in delusional severity compared to a cognitive remediation (CR) active control condition. Read More

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October 2018
2 Reads

Violence Associated with Somatic Delusions.

Cureus 2018 Aug 22;10(8):e3186. Epub 2018 Aug 22.

Psychiatry, Maimonides Medical Center, New York, USA.

The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) characterizes delusional disorder (DD) by the presence of delusions for longer than one month, without bizarre behavior or functional impairment. According to Kaplan and Saddock, the lifetime prevalence of DD (all subtypes) is about 0.2%. Read More

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August 2018
1 Read

[Psychosis: Cognitive Behavioral Treatment Strategies].

Psychother Psychosom Med Psychol 2018 Nov 25;68(11):481-494. Epub 2018 Oct 25.

Cognitive behavioral therapy (CBT) is an established treatment for the patients with psychosis including schizophrenia. The evidence for the efficacy of CBT is proved by randomized clinical trials and meta-analyses. Evidence-based treatment guidelines recommend CBT for routine treatment. Read More

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November 2018
2 Reads

Neuropsychiatric disturbances in atypical parkinsonian disorders.

Neuropsychiatr Dis Treat 2018 9;14:2643-2656. Epub 2018 Oct 9.

IRCCS Neuromed, Pozzilli, Italy,

Multiple system atrophy (MSA), progressive supranuclear palsy (PSP), and corticobasal degeneration (CBD) are the most common atypical parkinsonisms. These disorders are characterized by varying combinations of autonomic, cerebellar and pyramidal system, and cognitive dysfunctions. In this paper, we reviewed the evidence available on the presence and type of neuropsychiatric disturbances in MSA, PSP, and CBD. Read More

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October 2018
6 Reads

Early Senescence and Leukocyte Telomere Shortening in SCHIZOPHRENIA: A Role for Cytomegalovirus Infection?

Brain Sci 2018 Oct 18;8(10). Epub 2018 Oct 18.

Immunology Unit, University of Extremadura, 10003 Caceres, Spain.

Schizophrenia is a severe, chronic mental disorder characterized by delusions and hallucinations. Several evidences support the link of schizophrenia with accelerated telomeres shortening and accelerated aging. Thus, schizophrenia patients show higher mortality compared to age-matched healthy donors. Read More

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October 2018
1 Read

Refractory Delusional Parasitosis in a 70-year-old Woman.

Cureus 2018 Aug 8;10(8):e3120. Epub 2018 Aug 8.

Psychiatry, West Virginia School of Osteopathic Medicine, Martinsburg, USA.

This is a case report of delusional parasitosis in a 70-year-old woman. Delusional parasitosis, or delusional infestation, is a rare disorder typified by the false belief that an individual is infected with insects or parasites. Management focuses on developing a strong, caring relationship with the patient. Read More

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August 2018
9 Reads

Next-generation sequencing analysis of multiplex families with atypical psychosis.

Transl Psychiatry 2018 Oct 15;8(1):221. Epub 2018 Oct 15.

Department of Neuropsychiatry, Osaka Medical College, Osaka, Japan.

Atypical psychosis (similar to acute and transient psychotic disorder, brief psychotic disorder) is highly heritable, but the causal genes remain unidentified. We conducted whole-genome sequencing on multiplex Japanese families with atypical psychosis. The patient group of interest shows acute psychotic features including hallucinations, delusions, and catatonic symptoms while they often show good prognosis after the onset. Read More

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October 2018
7 Reads

Is the paranoia as defence model of persecutory delusions defensible?

Authors:
Frances Shawyer

Lancet Psychiatry 2018 Nov 9;5(11):861-862. Epub 2018 Oct 9.

School of Psychology and Psychiatry, Monash University, Southern Synergy, Dandenong Hospital, Dandenong, VIC 3175, Australia. Electronic address:

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November 2018
1 Read

The paranoia as defence model of persecutory delusions: a systematic review and meta-analysis.

Lancet Psychiatry 2018 Nov 9;5(11):913-929. Epub 2018 Oct 9.

School of Health and Social Care, Edinburgh Napier University, Edinburgh, UK.

Background: An influential psychological model of persecutory delusions proposed that they are caused by a bias towards holding others responsible for negative events (an externalising attributional bias), preventing the individual from becoming aware of underlying low self-esteem. An early version of the model predicted self-esteem would, therefore, be preserved in people with these delusions, but a later version suggested it would be unstable, and that there would be a discrepancy between explicit and implicit self-esteem, with the latter being lower. We did a comprehensive meta-analytical test of the key predictions of this model and assessed the quality of evidence. Read More

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November 2018
10 Reads

Frightening and Traumatic Memories Early After Intensive Care Discharge.

Am J Respir Crit Care Med 2018 Oct 12. Epub 2018 Oct 12.

Edinburgh Royal Infirmary, Anaesthetics, Critical Care and Pain Medicine, Edinburgh, United Kingdom of Great Britain and Northern Ireland ;

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October 2018
8 Reads

The characteristics of psychotic features in bipolar disorder.

Psychol Med 2018 Oct 10:1-13. Epub 2018 Oct 10.

Department of Psychiatry,University Medical Center Utrecht, Brain Center Rudolf Magnus,Utrecht,The Netherlands.

Background: In a large and comprehensively assessed sample of patients with bipolar disorder type I (BDI), we investigated the prevalence of psychotic features and their relationship with life course, demographic, clinical, and cognitive characteristics. We hypothesized that groups of psychotic symptoms (Schneiderian, mood incongruent, thought disorder, delusions, and hallucinations) have distinct relations to risk factors.

Methods: In a cross-sectional study of 1342 BDI patients, comprehensive demographical and clinical characteristics were assessed using the Structured Clinical Interview for DSM-IV (SCID-I) interview. Read More

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October 2018
3 Reads

On the Margins of Death: A Scoping Review on Palliative Care and Schizophrenia.

J Palliat Care 2018 Oct 10:825859718804108. Epub 2018 Oct 10.

1 Factor-Inwentash Faculty of Social Work, University of Toronto, Toronto, ON, Canada.

Schizophrenia is a serious chronic mental illness that results in marginalization and stigma for sufferers. It is the seventh leading cause for disability worldwide. The symptoms of the illness, including hallucinations, delusions, and extremely disordered thinking and behavior, may also introduce barriers to accessing treatment, education, housing, and employment. Read More

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October 2018
13 Reads

Raloxifene as a treatment for cognition in women with schizophrenia: the influence of menopause status.

Psychoneuroendocrinology 2018 Oct 4;100:113-119. Epub 2018 Oct 4.

Monash Alfred Psychiatry research centre, Monash University and The Alfred Hospital, Central Clinical School, Melbourne, Australia.

Cognitive impairments cause significant functional issues for people with schizophrenia, often emerging before the onset of hallucinations, delusions and other psychosis symptoms. Current pharmacological treatments do not target cognitive dysfunction. Several lines of evidence support the beneficial effects of estrogens on cognition. Read More

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October 2018
3 Reads

Pimavanserin: Potential Treatment For Dementia-Related Psychosis.

J Prev Alzheimers Dis 2018 ;5(4):253-258

Jeffrey Cummings MD, ScD, Cleveland Clinic Lou Ruvo Center for Brain Health, 888 W. Bonneville Ave, Las Vegas, NV, USA,

Psychosis is common across dementia types with a prevalence of 20% to 70%. Currently, no pharmacologic treatment is approved for dementia-related psychosis. Atypical antipsychotics are frequently used to treat these disorders, despite significant safety concerns. Read More

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January 2018
2 Reads

Contradiction processing in schizophrenia.

Cogn Neuropsychiatry 2018 Nov 8;23(6):377-392. Epub 2018 Oct 8.

a ARC Centre of Excellence in Cognition and its Disorders, and Department of Cognitive Science , Macquarie University , Sydney , Australia.

Introduction: Patients with schizophrenia present clinically with difficulties in manipulating contradictory information in the form of loose associations, surface contradictions and delusional beliefs. It is to date unclear whether patients can detect and process information that contradicts their beliefs and prior knowledge and whether this capacity is related to their symptoms and the nature of contradictory stimuli (e.g. Read More

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November 2018
7 Reads

Occupational therapy delivered by specialists versus non-specialists for people with schizophrenia.

Cochrane Database Syst Rev 2018 10 5;10:CD012398. Epub 2018 Oct 5.

Department of Health, Psychology & Social Studies, University of Cumbria, Fusehill Street, Carlisle, UK, CA1 2HH.

Background: Schizophrenia is a severe mental health condition that is characterised by positive symptoms, such as hallucinations and delusions; negative symptoms, such as flattened affect, thought disorder (disrupted speech), and lack of motivation; and cognitive symptoms, such as problems with memory and attention. Schizophrenia can occur as an isolated episode, or as a recurring cycle of remission and relapse, and is associated with impairment in psychosocial and occupational functioning.Although antipsychotic drugs are the main treatment for people with schizophrenia, in most countries mental health services usually provide a range of add-on interventions, including occupational therapy. Read More

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October 2018

Source flexibility in schizophrenia: specificity and role in auditory hallucinations.

Cogn Neuropsychiatry 2018 Nov 5;23(6):393-407. Epub 2018 Oct 5.

a Department of Biological and Medical Psychology , University of Bergen , Bergen , Norway.

Introduction: One important aspect of human cognition relies on the ability to bias attention towards stimulus-independent and stimulus-oriented thoughts and to switch between these states - or source flexibility. This mechanism has received very little attention in the literature, and in particular in schizophrenia. Moreover, there is good reason to believe that this mechanism could also be implicated in hallucinations, but this hypothesis has never been examined. Read More

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November 2018
8 Reads

The Psychopathology of Delusion of Control According to Subjective Experience.

Rev Colomb Psiquiatr 2018 Oct - Dec;47(4):221-228. Epub 2017 Apr 1.

York University, Toronto, Canadá.

Background: Delusion of control, including thought insertion, occurs in 20% of patients with schizophrenia. However little is known of its psychopathology, and studies involving patients are scarce.

Aims: To explore the subjective experience of patients with delusion of control and to propose a psychopathological explanation based on empirical evidence. Read More

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April 2017
1 Read

Clinical cases and metaphysical theories of personal identity.

Authors:
Gabriel Andrade

Med Health Care Philos 2018 Oct 3. Epub 2018 Oct 3.

Xavier University School of Medicine, Santa Elenestraat, 43, Oranjestad, Aruba.

In this article, we consider three metaphysical theories of personal identity: the soul theory, the body theory, and the psychological theory. Clinical cases are discussed as they present conceptual problems for each of these theories. For the soul theory, the case of Phineas Gage, and cases of pedophilic behavior due to a brain tumor are discussed. Read More

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October 2018

Persistent Psychosis due to Single Dose of Ecstasy.

Cureus 2018 Jul 27;10(7):e3058. Epub 2018 Jul 27.

Behavioral Health Sciences, Nassau University Medical Center, East Meadow, USA.

Ecstasy, a popular drug among the younger generation, the primary psychoactive component of which is 3,4-Methylenedioxymethamphetamine (MDMA), is rarely known to have acute psychiatric effects and when it does, it is usually short term. We describe a patient who presented to the emergency room in a psychotic state after using ecstasy recreationally. Given his aggressive behavior in the community and risk for self-harm, he was emergently hospitalized to ensure safety. Read More

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July 2018
7 Reads

High delusional ideation is associated with false pictorial memory.

J Behav Ther Exp Psychiatry 2019 Mar 17;62:97-102. Epub 2018 Sep 17.

School of Psychology, Cardiff University, Cardiff, CF10 3AT, Wales, UK.

Background And Objectives: To assess the relationship between false memories and schizotypal experiences in healthy volunteers. Previous research has examined a number of schizotypal dimensions and experiences and found a variety of results. Our aim was to determine the specificity of these associations by giving participants a schizotypy measure which tapped positive, negative and disorganised dimensions (O-LIFE) and another which focused on delusional ideation (PDI). Read More

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Examining reasoning biases in schizophrenia using a modified "Jumping to Conclusions" probabilistic reasoning task.

Psychiatry Res 2018 Sep 18;270:180-186. Epub 2018 Sep 18.

School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, TX, USA; Department of Psychiatry, University of Texas Southwestern Medical School, Dallas, TX, USA.

Although the Jumping To Conclusion (JTC) bias has been extensively studied in relation to schizophrenia and persecutory delusions, the relationship between JTC and other reasoning biases implicated in delusional ideation is not fully understood. We modified the traditional JTC task to assess co-occurrence of reasoning biases in decision making. Forty-six patients with schizophrenia and 46 healthy controls completed two versions [neutral colored beads and salient comments] of the modified task. Read More

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September 2018

Religious delusions in older adults: Diagnoses, combinations, and delusional characteristics.

Int J Geriatr Psychiatry 2018 Dec 25;33(12):1680-1687. Epub 2018 Sep 25.

Department of Emergency Psychiatry and Department of Residency Training, Altrecht Mental Health Care, The Netherlands.

Objective: Religious delusions (RDs) tend to occur relatively often in patients with affective or non-affective psychosis. Few studies exist about RDs in later life. The current study explores (1) the distribution of RDs across diagnosis, (2) how RDs relate to other types of delusions, and (3) how RDs relate to several dimensions or characteristics of delusions. Read More

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December 2018
1 Read

Aberrant myelination of the cingulum and Schneiderian delusions in schizophrenia: a 7T magnetization transfer study.

Psychol Med 2018 Sep 19:1-7. Epub 2018 Sep 19.

Translational Neuroimaging for Mental Health, Division of Psychiatry and Applied Psychology,University of Nottingham,Nottingham,UK.

Background: The structural integrity of the anterior cingulum has been repeatedly observed to be abnormal in patients with schizophrenia. More recently, aberrant myelination of frontal fasciculi, especially, cingulum has been proposed to underlie delayed corollary discharges that can affect sense of agency and contribute to delusions of control (Schneiderian delusions). Using the magnetization transfer phenomenon at an ultra-high field 7T MRI, we investigated the putative myelin content of cingulum bundle in patients with schizophrenia. Read More

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September 2018
1 Read

Neuropathologic Correlates of Psychiatric Symptoms in Alzheimer's Disease.

J Alzheimers Dis 2018 ;66(1):115-126

Memory and Aging Center, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, USA.

Clarifying the relationships between neuropsychiatric symptoms and Alzheimer's disease (AD)-related pathology may open avenues for effective treatments. Here, we investigate the odds of developing neuropsychiatric symptoms across increasing burdens of neurofibrillary tangle and amyloid-β pathology. Participants who passed away between 2004 and 2014 underwent comprehensive neuropathologic evaluation at the Biobank for Aging Studies from the Faculty of Medicine at the University of São Paulo. Read More

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January 2018
10 Reads

Psychosis Literacy Among Latinos With First-Episode Psychosis and Their Caregivers.

Psychiatr Serv 2018 Sep 17:appips201700400. Epub 2018 Sep 17.

Dr. López, Ms. Gamez, Ms. Calderon, and Ms. Lopez are with the Department of Psychology, University of Southern California, Los Angeles. Ms. Mejia is with the Department of Psychology, University of North Carolina, Greensboro. Dr. Ullman is with the Department of Psychology, California State University, San Bernardino. Dr. Kopelowicz is with the Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles.

Objective: The study examined psychosis literacy among Latinos with first-episode psychosis (FEP) and their caregivers. The authors tested a model that knowledge of psychosis and attribution of illness to psychosis predicted professional help seeking in a cross-sectional design.

Methods: The sample (N=148) consisted of 79 Latino consumers who met criteria for a clinical diagnosis of a psychotic disorder and 69 family caregivers. Read More

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September 2018

Making delusions of infestation understandable: A worthy goal?

Aust N Z J Psychiatry 2018 Oct 7;52(10):921-923. Epub 2018 Sep 7.

Melbourne School of Psychological Sciences, The University of Melbourne, Parkville, VIC, Australia.

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October 2018
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