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https://www.readbyqxmd.com/read/29455948/belief-delusion-hypnosis-and-the-right-dorsolateral-prefrontal-cortex-a-transcranial-magnetic-stimulation-study
#1
Max Coltheart, Rochelle Cox, Paul Sowman, Hannah Morgan, Amanda Barnier, Robyn Langdon, Emily Connaughton, Lina Teichmann, Nikolas Williams, Vince Polito
According to the Two-Factor theory of delusional belief (see e.g. Coltheart at al., 2011), there exists a cognitive system dedicated to the generation, evaluation, and acceptance or rejection of beliefs. Studies of the neuropsychology of delusion provide evidence that this system is neurally realized in right dorsolateral prefrontal cortex (rDLPFC). Furthermore, we have shown that convincing analogues of many specific delusional beliefs can be created in nonclinical subjects by hypnotic suggestion and we think of hypnosis as having the effect of temporarily interfering with the operation of the belief system, which allows acceptance of the delusional suggestions...
January 31, 2018: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/29454305/psychotropic-and-anti-dementia-treatment-in-elderly-persons-with-clinical-signs-of-dementia-with-lewy-bodies-a-cross-sectional-study-in-40-nursing-homes-in-sweden
#2
Iris Zahirovic, Gustav Torisson, Carina Wattmo, Elisabet Londos
BACKGROUND: Elderly persons with a dementia diagnosis often suffer from different neuropsychiatric symptoms (NPS) such as delusions, hallucinations, depression, anxiety, irritability and agitation. Currently, the medical treatment for NPS consists mostly of psychotropic medication such as hypnotics/sedatives, anxiolytics and antipsychotics. In elderly persons with dementia, usage of antipsychotics is less appropriate because of the risk of side effects such as parkinsonism, rapid cognitive decline, cerebrovascular events and finally mortality...
February 17, 2018: BMC Geriatrics
https://www.readbyqxmd.com/read/29453145/demographic-and-clinical-characteristics-associated-with-a-history-of-bizarre-delusions-in-a-cross-diagnostic-sample-of-individuals-with-psychotic-disorders
#3
Cagri Yuksel, Seheryeli Yilmaz, Ariana Nesbit, Gresa Carkaxhiu, Caitlin Ravichandran, Paola Salvatore, Samira Pingali, Bruce Cohen, Dost Ongur
Bizarre delusions (BizD) are not specific to schizophrenia (SZ) and can be found in other psychotic disorders. However, to date, there are no studies investigating socio-demographic and clinical characteristics associated with BizD across the psychosis spectrum. In this study 819 subjects with a diagnosis of SZ (n = 250), schizoaffective disorder (SZA) (n = 228) and bipolar I disorder (BD) (n = 341) were included. Patients with history of BizD and with no BizD were compared with respect to socidemographic and clinical variables, and predictors of BizD were explored...
February 9, 2018: Asian Journal of Psychiatry
https://www.readbyqxmd.com/read/29452684/evaluation-of-the-safety-tolerability-and-efficacy-of-pimavanserin-versus-placebo-in-patients-with-alzheimer-s-disease-psychosis-a-phase-2-randomised-placebo-controlled-double-blind-study
#4
Clive Ballard, Carol Banister, Zunera Khan, Jeffrey Cummings, George Demos, Bruce Coate, James M Youakim, Randall Owen, Srdjan Stankovic
BACKGROUND: Pimavanserin is a selective 5-HT 2A receptor inverse agonist and antagonist approved in the USA for the treatment of hallucinations and delusions associated with Parkinson's disease psychosis. No safe or effective pharmacological treatment is approved for psychosis in patients with Alzheimer's disease. Therefore, we aimed to evaluate the safety, tolerability, and efficacy of pimavanserin versus placebo in patients with Alzheimer's disease psychosis. METHODS: We did a phase 2, randomised, double-blind, placebo-controlled, single-centre (with multiple affiliated nursing home sites across the UK) study...
March 2018: Lancet Neurology
https://www.readbyqxmd.com/read/29449061/c4a-mrna-expression-in-pbmcs-predicts-the-presence-and-severity-of-delusions-in-schizophrenia-and-bipolar-disorder-with-psychosis
#5
Jennifer K Melbourne, Cherise Rosen, Benjamin Feiner, Rajiv P Sharma
Altered immune function is an established finding in psychotic disorders such as schizophrenia and bipolar disorder with psychosis, though its role in their development and progression remains to be understood. Evidence suggests altered JAK-STAT1 pathway activity in peripheral blood cells from participants with schizophrenia compared to controls. Activation of this pathway leads to increased expression of complement component 4A (C4A), which has recently been implicated in schizophrenia. Here, we examine mRNA expression of C4A in peripheral blood cells from participants with schizophrenia, bipolar disorder and controls...
February 12, 2018: Schizophrenia Research
https://www.readbyqxmd.com/read/29444726/resting-state-thalamic-dysconnectivity-in-schizophrenia-and-relationships-with-symptoms
#6
J Ferri, J M Ford, B J Roach, J A Turner, T G van Erp, J Voyvodic, A Preda, A Belger, J Bustillo, D O'Leary, B A Mueller, K O Lim, S C McEwen, V D Calhoun, M Diaz, G Glover, D Greve, C G Wible, J G Vaidya, S G Potkin, D H Mathalon
BACKGROUND: Schizophrenia (SZ) is a severe neuropsychiatric disorder associated with disrupted connectivity within the thalamic-cortico-cerebellar network. Resting-state functional connectivity studies have reported thalamic hypoconnectivity with the cerebellum and prefrontal cortex as well as thalamic hyperconnectivity with sensory cortical regions in SZ patients compared with healthy comparison participants (HCs). However, fundamental questions remain regarding the clinical significance of these connectivity abnormalities...
February 15, 2018: Psychological Medicine
https://www.readbyqxmd.com/read/29444349/suicidal-ideation-in-first-episode-psychosis-fep-examination-of-symptoms-of-depression-and-psychosis-among-individuals-in-an-early-phase-of-treatment
#7
Lindsay A Bornheimer
First-episode psychosis (FEP) is a particularly high-risk period for suicide, in which risk elevates by 60% within a first year of treatment as compared to later stages of illness. To date, much of the literature has focused on individuals with a longer duration of psychosis; thus, there is an urgency for research to examine suicide risk among individuals in FEP in the beginning stage of treatment. This study aimed to identify the relationships between demographic characteristics, symptoms of depression, psychosis (particularly positive symptoms of psychosis), and suicidal ideation among individuals in FEP...
February 14, 2018: Suicide & Life-threatening Behavior
https://www.readbyqxmd.com/read/29439334/what-do-we-know-about-behavioral-crises-in-dementia-a-systematic-review
#8
Tamara Backhouse, Julieta Camino, Eneida Mioshi
BACKGROUND: Behavioral crises in dementia are represented by a wide variety of symptoms, regularly require external intervention from professionals, and are reported as a risk factor for hospital admission. Little is known about the factors that are associated with them. OBJECTIVE: To determine the factors associated with dementia-related behavioral crises. METHODS: We searched MEDLINE, CINAHL, PsycINFO, EMBASE, and AMED databases. An additional lateral search including reference lists was conducted...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29439083/psychological-outcomes-following-a-nurse-led-preventative-psychological-intervention-for-critically-ill-patients-poppi-protocol-for-a-cluster-randomised-clinical-trial-of-a-complex-intervention
#9
Alvin Richards-Belle, Paul R Mouncey, Dorothy Wade, Chris R Brewin, Lydia M Emerson, Richard Grieve, David A Harrison, Sheila Harvey, David Howell, Monty Mythen, Zia Sadique, Deborah Smyth, John Weinman, John Welch, Kathryn M Rowan
INTRODUCTION: Acute psychological stress, as well as unusual experiences including hallucinations and delusions, are common in critical care unit patients and have been linked to post-critical care psychological morbidity such as post-traumatic stress disorder (PTSD), depression and anxiety. Little high-quality research has been conducted to evaluate psychological interventions that could alleviate longer-term psychological morbidity in the critical care unit setting. Our research team developed and piloted a nurse-led psychological intervention, aimed at reducing patient-reported PTSD symptom severity and other adverse psychological outcomes at 6 months, for evaluation in the POPPI trial...
February 8, 2018: BMJ Open
https://www.readbyqxmd.com/read/29436880/cotard-s-syndrome-triggered-by-fear-in-a-patient-with-intellectual-disability-causal-or-casual-link
#10
Fabrizio Sottile, Rosaria De Luca, Lilla Bonanno, Giuseppina Finzi, Carmela Casella, Rocco Salvatore Calabrò
Cotard's syndrome is a neuropsychiatric disease characterized by a variety of nihilistic delusions, commonly associated with several psychotic and major affective disorders, and neurological diseases, including stroke, dementia, and mental retardation. A 39-year-old male with mental retardation developed Cotard's syndrome, following an important episode of fear. During admission to our neurological unit, the patient underwent an accurate assessment, including neuroradiological, clinical, and neuropsychological examinations...
February 13, 2018: Issues in Mental Health Nursing
https://www.readbyqxmd.com/read/29410936/disparity-between-general-symptom-relief-and-remission-criteria-in-the-positive-and-negative-syndrome-scale-panss-a-post-treatment-bifactor-item-response-theory-model
#11
Ariana E Anderson, Steven P Reise, Stephen R Marder, Maxwell Mansolf, Carol Han, Robert M Bilder
Objective: Total scale scores derived by summing ratings from the 30-item PANSS are commonly used in clinical trial research to measure overall symptom severity, and percentage reductions in the total scores are sometimes used to document the efficacy of treatment. Acknowledging that some patients may have substantial changes in PANSS total scores but still be sufficiently symptomatic to warrant diagnosis, ratings on a subset of 8 items, referred to here as the "Remission set," are sometimes used to determine if patients' symptoms no longer satisfy diagnostic criteria...
December 1, 2017: Innovations in Clinical Neuroscience
https://www.readbyqxmd.com/read/29409548/a-clinimetric-analysis-of-a-bprs-6-scale-for-schizophrenia-severity
#12
Per Bech, Stephen F Austin, Nina Timmerby, Thomas A Ban, Stine Bjerrum Møller
OBJECTIVE: A restricted Brief Psychiatric Rating Scale (BPRS-6) with the six schizophrenia specific items from the Positive and Negative Syndrome Scale (PANSS) has been investigated. These six items from the PANSS have recently been found to have both clinical validity and 'unidimensionality' in measuring the severity of schizophrenic states. The primary objective of this study was to evaluate the clinical validity of the BPRS-6. The secondary objective was to evaluate the 'unidimensionality' of the BPRS-6 by an 'item response theory' model...
February 7, 2018: Acta Neuropsychiatrica
https://www.readbyqxmd.com/read/29409164/reliability-and-structural-validity-of-the-chinese-version-of-the-neuropsychiatric-inventory-nursing-home-version
#13
Suhong Chen, Kai Lin, Hanxiao Wang, Miyae Yamakawa, Kiyoko Makimoto, Xiaoyan Liao
BACKGROUND: With the increasing number of dementia patients in China, there is a pressing need for a reliable and valid Chinese instrument that can measure neuropsychiatric symptoms in institutionalized dementia patients. This study examined the reliability and structural validity of the Chinese version of the Neuropsychiatric Inventory, Nursing Home version (NPI-NH), in a sample of institutionalized dementia patients in China. METHODS: A total of 112 residents with dementia (Clinical Dementia Rating = 1: 10...
February 6, 2018: Psychogeriatrics: the Official Journal of the Japanese Psychogeriatric Society
https://www.readbyqxmd.com/read/29407719/measuring-bias-against-disconfirmatory-evidence-an-evaluation-of-bade-task-scoring-methods-and-the-case-for-a-novel-method
#14
Michael V Bronstein, Tyrone D Cannon
Research suggests that bias against disconfirmatory evidence (BADE) may help maintain delusions in the face of overwhelming evidence against them. Much of this research has employed Woodward and colleagues' BADE task. Different methods of scoring this task, many of which have significant drawbacks, are currently used by researchers, making it difficult to compare results across studies of BADE. Continued advancement of BADE research demands a scoring method with more favorable psychometric properties that is used more consistently by researchers...
January 11, 2018: Psychiatry Research
https://www.readbyqxmd.com/read/29403138/amisulpride-reexposure-and-tardive-dyskinesia
#15
Ajeet Sidana
To highlight the association between amisulpride and onset of tardive dyskinesia (TD) in patient suffering with psychosis not otherwise specified (NOS), who has already been treated with amisulpride for many years. A 40-year-old female suffering with psychosis NOS since 19 years presented with recurrence of positive symptoms in the form of delusion of persecution, ideas of grandiosity since last 3 months. She was treated with amisulpride up to 400 mg/day and developed involuntary oro-buccal-lingual movement within 2 months of amisulpride therapy...
January 2018: Indian Journal of Psychological Medicine
https://www.readbyqxmd.com/read/29402582/birth-experiences-trauma-responses-and-self-concept-in-postpartum-psychotic-like-experiences
#16
Lyndsey Holt, William Sellwood, Pauline Slade
The frequency of psychotic-like experiences (PLEs) amongst new mothers is beginning to be explored but the mechanisms underlying such experiences are yet to be understood. First time mothers (N=10,000) receiving maternity care via the UK National Health Service were contacted postnatally via Emma's Diary, an online resource for mothers. Measures assessed birth experience, trauma appraisals, post-traumatic stress symptoms, adjustment to motherhood, self-concept clarity and PLEs (in the form of hallucinations and delusions)...
February 2, 2018: Schizophrenia Research
https://www.readbyqxmd.com/read/29401155/combined-nmda-inhibitor-use-in-a-patient-with-multisubstance-induced-psychotic-disorder
#17
Matteo Caloro, Giuseppa Calabrò, Eleonora de Pisa, Enrico Rosini, Georgios D Kotzalidis, Davide Lonati, Carlo Alessandro Locatelli, Pietro Papa, Fabrizio Schifano, Paolo Girardi
: Novel psychoactive substance use is a major social concern. Their use may elicit or uncover unpredictably as yet undescribed clinical pictures. We aimed to illustrate a multisubstance use case indistinguishable from paranoid schizophrenia, so to alert clinicians on possibly misdiagnosing substance-induced psychotic disorders. CASE REPORT: We describe a case of a 32-year-old man who started at 18 years with cannabinoids and ketamine, and is currently using N-methyl-D-aspartate (NMDA) antagonists...
February 2, 2018: Journal of Addiction Medicine
https://www.readbyqxmd.com/read/29400103/-four-year-follow-up-of-a-neurosyphilis-case-presenting-psychiatric-symptoms
#18
László Tombor, Pál Salacz, Éva Jankelovics, Zoltán Hidasi
The authors present a case of neurosyphilis associated with predominant psychiatric symptoms. The elderly man was admitted because of confused behavior, maniform state, lack of critical judgement and grandiose delusions. On admission, right central facial nerve paresis, hand tremor and parkinsonism were also found. Acute brain imaging and routine laboratory tests failed to identify a firm etiology of the confusional state. The psychiatric treatment resulted in complete recovery from delirium. Afterwards, maniform psychosis dominated the clinical picture for which antipsychotics were administered...
February 2018: Orvosi Hetilap
https://www.readbyqxmd.com/read/29389697/pharmacotherapy-for-primary-delusional-jealousy-a-retrospective-observational-study-of-32-cases-with-othello-syndrome
#19
Chen-Chung Liu, Yen-Chin Wang, Tzung-Jeng Hwang
To determine whether primary delusional jealousy can be treated effectively with antipsychotics or antidepressants, and whether any clinical variables are associated with response to pharmacotherapy, we carried out a retrospective case series observational study by reviewing clinical records of patients with an International Classification of Disease, 9th ed., diagnostic code of 297 (delusional disorders) who were treated at the Department of Psychiatry of a university affiliated hospital from January 2010 to December 2015...
March 2018: International Clinical Psychopharmacology
https://www.readbyqxmd.com/read/29384891/familial-risk-for-psychiatric-disorders-in-military-veterans-who-have-post-traumatic-stress-disorder-with-psychosis-a-retrospective-electronic-record-review
#20
Aengus ÓConghaile, Diane L Smedberg, Ah L Shin, Lynn E DeLisi
AIMS/OBJECTIVES/BACKGROUND: Post-traumatic stress disorder (PTSD) is a leading cause of morbidity among military veterans, with up to one-in-five individuals with PTSD also having psychotic symptoms. The current study was designed to determine the association between a known family history of psychiatric illness and risk of developing psychosis in patients with PTSD. METHODS: Retrospective medical record review was performed on a cohort study of 414 consecutive individuals admitted to the Veteran Administration in 2014 with a diagnosis of military-related PTSD, but without a prior diagnosis of a psychotic disorder...
January 30, 2018: Psychiatric Genetics
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