3,882 results match your criteria Delusional Disorder
Tijdschr Psychiatr 2018 ;60(12):834-837
A 12-year-old girl with no psychiatric history developed psychotic symptoms, including formal thought disorder and delusional ideas after omeprazole was initiated. Given the co-occurrence of omeprazole initiation and the start of these symptoms, omeprazole was discontinued and replaced by ranitidine which led to immediate symptom reduction followed by complete remission. Although the proton pump inhibitor (ppi) omeprazole is considered safe and is commonly prescribed, it can cause rare major psychiatric side-effects. Read More
Hist Psychol 2018 Dec 3. Epub 2018 Dec 3.
Department of Dynamic and Clinical Psychology, University of Rome La Sapienza.
In Catholic culture, and especially within the Italian Catholic environment, there has recently been a significant revival of the practice of exorcism. This is a fact noted by historians such as Levack (2013) and Young (2016). The article intends to show how this phenomenon is related to a series of important historical turning points, the most important of which is the recent collaboration between exorcists and Catholic psychologists and psychiatrists to establish a differential diagnosis between real possession and mere psychopathology. Read More
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
Alzheimers Dement (Amst) 2018 3;10:750-754. Epub 2018 Nov 3.
Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy.
Introduction: Patients affected by the behavioral variant frontotemporal dementia (bvFTD) frequently experience, at a delayed onset, abnormal eating behavior involving increased food intake. Although delusional food-related symptoms have attracted much attention, the behavioral and neural features of food aversion manifestations in bvFTD remain poorly documented.
Methods: We describe the rare case of a patient with bvFTD presenting with lack of interoception for swallowing and digestion, coupled with a dramatic food aversion at onset. Read More
Hist Psychiatry 2018 Nov 26:957154X18807632. Epub 2018 Nov 26.
University of Adelaide, Australia.
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
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
Clin Dermatol 2018 Nov - Dec;36(6):765-773. Epub 2018 Aug 16.
Department of Medicine, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.
Antipsychotic drugs can be beneficial in dermatology because of their both central nervous system and peripheral effects. All antipsychotic drugs have a central postsynaptic dopamine D2 receptor blocking effect, which underlies their antipsychotic action. The antipsychotic drugs have varying degrees of histamine H1-receptor, cholinergic muscarinic receptor, and α1-adrenergic receptor blocking effects, which can affect cutaneous perception and the autonomic reactivity of the skin and can be potentially beneficial in the management of certain histamine or sympathetically mediated dermatologic manifestations (eg, urticaria, pruritus, hyperhidrosis). Read More
Clin Dermatol 2018 Nov - Dec;36(6):714-718. Epub 2018 Aug 16.
University of Minnesota Medical School, Minneapolis, Minnesota, USA.
Delusional infestation is the conviction that one is infested with pathogens-either animate or inanimate-despite medical or microbiologic evidence to the contrary. Infestation with inanimate pathogens, specifically fibers or filaments, has been controversially termed Morgellons disease by the patients themselves, who believe that this is not a psychiatric disease but rather a new organic condition or a skin manifestation of an infection, such as Lyme disease. A large-scale study by the Centers of Disease Control and Prevention on patients presenting with Morgellons clinical manifestations did not find evidence of fibers in the skin nor an association with any infection, including Lyme disease. Read More
Int J Geriatr Psychiatry 2018 Nov 14. Epub 2018 Nov 14.
Medical School, University of Western Australia, Perth, Australia.
Objective: To determine if hearing loss is associated with increased risk of incident psychosis in later life.
Methods: Longitudinal cohort study of a community-representative sample of 38 173 men aged 65 to 85 years at the start of the follow-up period of 18 years. We used the Western Australian Data Linkage System to ascertain the presence of hearing loss and of psychotic disorders according to the International Classification of Diseases (ICD) (versions 8, 9, and 10). Read More
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
Front Psychol 2018 26;9:1958. Epub 2018 Oct 26.
Department of Psychoanalysis and Clinical Consulting, Ghent University, Ghent, Belgium.
Auditory verbal hallucinations have traditionally especially been researched from a form-based approach, with content getting much less attention. In this article, we argue for the importance of looking at content to get a fuller understanding of the hallucinatory experience. Guided by Lacanian psychoanalysis, we conducted a thematic and a narrative analysis on interviews with 10 schizophrenic patients about their hallucinations. Read More
Brain Nerve 2018 Nov;70(11):1181-1191
Department of Neurology, Oyamada Memorial Spa Hospital.
Delusional misidentification syndromes (DMSs) are a fascinating group of disorders involving a fixed, false belief about the identity of persons, places, and objects in one's environment. DMSs include Capgras syndrome, Frégoli syndrome, intermetamorphosis, the syndrome of subjective doubles, and reduplicative paramnesia. Although DMSs have been described in patients with focal neurological lesions, they are more commonly associated with neurodegenerative diseases, specifically dementia with Lewy bodies. Read More
Hist Psychiatry 2018 Dec;29(4):478-495
University of Adelaide, Australia.
Literature on the history of 'paranoia' (as a clinical concept) is large and confusing. This is partly explained by the fact that over the centuries the word 'paranoia' has been made to participate in several convergences (clinical constructs), and hence it has named different forms of behaviour and been linked to different explanatory concepts. The Classic Text that follows provides information on the internal clinical evolution of the last convergence in which 'paranoia' was made to participate. Read More
Eur Psychiatry 2018 Oct 30;55:52-60. Epub 2018 Oct 30.
Department of Psychiatry, Hospital General Universitario Gregorio Marañón, IiSGM, CIBERSAM, School of Medicine, Universidad Complutense, Calle Ibiza, 43, 28009, Madrid, Spain.
Background: Even if neurocognition is known to affect functional outcomes in schizophrenia, no previous study has explored the impact of cognition on functionality in delusional disorder (DD). We aimed to assess the effect of clinical characteristics, symptom dimensions and neuropsychological performance on psychosocial functioning and self-perceived functional impairment in DD.
Methods: Seventy-five patients with a SCID-I confirmed diagnosis of DD underwent neurocognitive testing using a neuropsychological battery examining verbal memory, attention, working memory and executive functions. Read More
Eur Psychiatry 2018 Oct 29;55:18-22. Epub 2018 Oct 29.
Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden.
Background: Comorbidity between neurodevelopmental disorders and psychotic disorders is common, but little is known about how neurodevelopmental disorders influence the presentation and outcome of first episode psychosis.
Methods: A nation-wide cohort (n = 2091) with a first hospitalization for psychosis between 2007-2011 and at ages between 16-25 at intake was identified from Swedish population registries. Comorbid diagnoses of neurodevelopmental disorders were identified at first psychosis hospitalization and for ADHD also by dispensations of psychostimulants before the first psychosis hospitalization. Read More
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
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
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
Front Neurol Neurosci 2018 18;43:123-137. Epub 2018 Oct 18.
Raymond Roussel (1877-1933) was an eccentric writer whose strange novelistic and theatrical work was launched by the surrealists and is still worshipped by the French intelligentia. While writing his first text at the age of 19 years, he presented a delusional episode marked by the conviction that he was shining like a sun and that he had acquired universal glory. He "fell back to earth" when the book was published and he realized that no one was stopping to gaze at him. Read More
Front Neurol Neurosci 2018 18;43:196-220. Epub 2018 Oct 18.
In this essay, we propose an association between Franz Kafka's novel, The Trial, and phenomenological and neurobiological processes in schizophrenia. We begin by presenting a summary of the plot, pointing to some of its remarkable literary aspects. We next compare the mental processes of dissociation, disorientation and delusion as represented in the novel with phenomenological processes that take place in the prodromal states of schizophrenia. Read More
Eur Child Adolesc Psychiatry 2018 Oct 17. Epub 2018 Oct 17.
Department of Child and Adolescent Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
This study aimed at searching the literature and reassessing the concept of shared psychotic disorder (SPD) in young people under 18 taking into account genetic vulnerability, social circumstances and family situation to have a better understanding of this condition. Published case reports from 1980 through to March 2017, which included children and adolescents meeting DSM-III/IV/IV-TR or ICD 10 criteria of SPD, were identified. Sociodemographic and clinical variables were collected and analysed; a post hoc analysis comparing inductors and induced was also conducted. Read More
Psychol Res Behav Manag 2018 1;11:425-432. Epub 2018 Oct 1.
Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China,
Delusional infestation (DI), a debilitating psychocutaneous condition, featured as a false fixed belief of being infested accompanied by somatosensory abnormality, behavior alteration, and cognitive impairment. Although management of primary causes and pharmacotherapy with antipsychotics and/or antidepressants can help to alleviate symptoms in most patients, the underlying etiology of DI still remains unclear. Morgellons disease (MD), characterized by the presence of cutaneous filaments projected from or embedded in skin, is also a polemic issue because of its relationship with spirochetal infection. Read More
Encephale 2018 Oct 8. Epub 2018 Oct 8.
CHG de Meaux, grand hôpital de l'Est Francilien, site de Meaux, pôle de psychiatrie et addictologie, 6-8, rue Saint-Fiacre, 77100 Meaux, France. Electronic address:
Background: Currently, all of the studies that focus on the relationship between paranoia and criminal offenses exclusively concern subjects suffering from a delusional paranoid disorder. However, subjects with single paranoid personality disorder, without any associated delusional disorder, are not uncommon in forensic practice.
Objectives: This study aims to describe the offenses committed by subjects suffering from a single paranoid personality disorder and to compare them with the offenses committed by the subjects affected by a paranoid delusional disorder associated with paranoid personality disorder. Read More
Trials 2018 Oct 10;19(1):547. Epub 2018 Oct 10.
Personality Disorder Research Unit, Centre for Psychiatry, Imperial College London, London, UK.
Background: Previous research has demonstrated the clinical effectiveness of long-term psychological treatment for people with some types of personality disorder. However, the high intensity and cost of these interventions limit their availability. Lower-intensity interventions are increasingly being offered to people with personality disorder, but their clinical and cost effectiveness have not been properly tested in experimental studies. Read More
Cortex 2018 Dec 18;109:352-354. Epub 2018 Sep 18.
Department of Rehabilitation, Ashikaga Red Cross Hospital, Tochigi, Japan.
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
Dermatol Ther 2018 Nov 8;31(6):e12724. Epub 2018 Oct 8.
Royal London Hospital, Barts Health Trust, London, United Kingdom.
A 57-year-old Caucasian female presented to our clinic with her 23-year-old son, who was profoundly autistic. Our patient was convinced that her son had an infestation with fibers and believed that he had developed the condition as a young child. She described the symptoms of the infestation in her son's skin on his behalf, as he was not able to communicate. Read More
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
J Dermatolog Treat 2018 Oct 1:1-13. Epub 2018 Oct 1.
a Department of Dermatology , Royal London Hospital, Barts Health NHS Trust , E1 1BB , London , UK.
Introduction: The majority of patients with delusional infestation (DI) seek help from dermatologists as they consider their condition to be of cutaneous origin and deny referral to psychiatrists, with the prevalence of the condition arising. Objectives of our study were:1.to assess whether there is a fixed delusional ideation in patients with DI, 2. Read More
Psychiatry Res 2018 Dec 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
J Nerv Ment Dis 2018 Nov;206(11):887-895
Department of Psychiatry and Robinson College, University of Cambridge, Cambridge, UK.
The ICD-11 International Classification of Diseases and Related Health Problems will move toward a narrower concept of "acute and transient psychotic disorders" (ATPD) characterized by the remnant "polymorphic psychotic disorder" (APPD) of the current ICD-10 category, also including schizophrenic and predominantly delusional subtypes. To assess the validity of APPD, relevant articles published between January 1993 and September 2017 were found through searches in PubMed and Web of Science. APPD is a rare mental disorder and affects significantly more women than men in early-middle adulthood. Read More
Innov Clin Neurosci 2018 Jul-Aug;15(7-8):23-26. Epub 2018 Aug 1.
Drs. Scotti-Muzzi and Saide are with the Psychiatry Unit, Pedro Ernesto University Hospital, State University of Rio de Janeiro, Brazil.
Schizo-obsessive disorder has been proposed to classify those who show schizophrenia and obsessive compulsive disorder (OCD) diagnoses. This subgroup has recently shown to be much more prevalent than previously thought, as well as presenting distinct clinical, phenomenological and neurobiological features from the parental diseases. We present a case report of a 32-year-old man who first manifested obsessive-compulsive symptoms (OCS) in his early twenties, followed by emergence of consistent negative schizophrenia symptoms, as well as intermittent aggressive behavior. Read More
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
BMJ Case Rep 2018 Sep 23;2018. Epub 2018 Sep 23.
Psychiatry, Huntlyburn, NHS Borders, Melrose, UK.
The case describes an adult diagnosed with attention deficit hyperactivity disorder and treated with atomoxetine who quickly developed a florid case of delusional infestation. The patient described very distressing experiences that were significantly impacting her daily life. The symptoms improved with the withdrawal of atomoxetine and resolved completely with antipsychotic medications. Read More
Trans R Soc Trop Med Hyg 2018 Sep 20. Epub 2018 Sep 20.
Heddfan Psychiatric Unit, Liaison Psychiatry, Betsi Cadwaladr University Local Health Board, Wrexham.
Background: Delusional infestation (DI) is a well-recognised delusional disorder presenting as the persisting belief in the presence of parasitic or other infestations. Combined clinics have been run by dermatology and psychiatry in a small number of centres. Here we report the first few years of a unique combined clinic run with experts in infectious diseases/tropical medicine and psychiatric management of DI. Read More
BMJ Case Rep 2018 Sep 18;2018. Epub 2018 Sep 18.
Department of Surgery, Narayana Medical College and Hospital, Nellore, India.
Schizophr Res 2018 Sep 5. Epub 2018 Sep 5.
Division of Mental Health and Wellbeing, Warwick Medical School, University of Warwick, Coventry, UK; North Warwickshire Early Intervention in Psychosis Service, Coventry and Warwickshire Partnership NHS Trust, Coventry, UK. Electronic address:
Background: Previous evidence suggests that delusional disorder has a later onset and better functional outcomes compared to schizophrenia. However, studies have not examined longitudinal outcomes in a first episode population, where confounding factors may be adjusted for.
Methods: A nested case control study was designed within the National EDEN study; a cohort of 1027 first episode psychosis patients. Read More
Appl Neuropsychol Adult 2018 Sep 5:1-7. Epub 2018 Sep 5.
a Department of Communication Sciences and Disorders , Florida International University , Miami , Florida , USA.
Acquired brain pathology can be associated with diverse psychiatric manifestations. Three major types of psychiatric disorders potentially found in cases of acquired brain pathology are examined: (1) psychosis, (2) mood disorders, and (3) personality disorders with special emphasis in so-called "acquired psychopathy." Two types of psychotic manifestations are reviewed: (a) Schizophrenia-like psychosis; (b) Other delusional disorder, specifically, somatoparaphrenia and delusional misidentification syndromes, which include reduplicative paramnesias, Capgras syndrome, Frégoli syndrome, and "doubles of the self-syndrome. Read More
Psychol Med 2018 Sep 4:1-14. Epub 2018 Sep 4.
Centre Hospitalier Le Vinatier,Bron,France.
Psychotic symptoms (PS) are experienced by a substantial proportion of the general population. When not reaching a threshold of clinical relevance, these symptoms are defined as psychotic experiences (PEs) and may exist on a continuum with psychotic disorders. Unfavorable socio-environmental conditions, such as ethnic minority position (EMP) and migrant status (MS), may increase the risk of developing PS and PEs. Read More
Brain Nerve 2018 Sep;70(9):981-991
Department of Neuropsychiatry, Ashikaga Red Cross Hospital.
Symptoms specific to schizophrenia include self-disturbances, delusional perception and loosening of associations. Self-disturbances in schizophrenia can be explained from the standpoint of an abnormal sense of agency, such as thought broadcasting as an over-attribution of agency and thought insertion as an under-attribution of agency. Delusional perception is often accompanied by impairment of perceptual organization; delusional mood and delusions might result from the reorganization of the fragmented perceptual field, as well as a loss of reality. Read More
Front Psychol 2018 15;9:1424. Epub 2018 Aug 15.
Psychedelic Research Group, Centre for Psychiatry, Department of Medicine, Imperial College London, London, United Kingdom.
Near-death experiences (NDEs) are complex subjective experiences, which have been previously associated with the psychedelic experience and more specifically with the experience induced by the potent serotonergic, ,-Dimethyltryptamine (DMT). Potential similarities between both subjective states have been noted previously, including the subjective feeling of transcending one's body and entering an alternative realm, perceiving and communicating with sentient 'entities' and themes related to death and dying. In this within-subjects placebo-controled study we aimed to test the similarities between the DMT state and NDEs, by administering DMT and placebo to 13 healthy participants, who then completed a validated and widely used measure of NDEs. Read More
Curr Opin Psychiatry 2019 Jan;32(1):22-26
University of Sydney, Faculty of Medicine and Health, Sydney Medical School, Nepean Clinical School, Discipline of Psychiatry, Sydney, Australia.
Purpose Of Review: The purpose of this article is to review the most recent literature on psychotic symptoms in borderline personality disorder (BPD).
Recent Findings: Both auditory hallucinations and delusional ideation (especially paranoid delusions) are relatively common in individuals with BPD. It is still difficult to distinguish these and related phenomena in BPD from the corresponding experiences in psychotic disorders and schizophrenia, despite numerous attempts to do so. Read More
Indian J Psychiatry 2018 Apr-Jun;60(2):254-255
Department of Psychiatry, University College of Medical Sciences and G.T.B. Hospital, Delhi, India. E-mail:
Neuropsychiatr Dis Treat 2018 13;14:2057-2065. Epub 2018 Aug 13.
Department of Psychosomatic Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
Objective: Oral cenesthopathy is characterized by foreign body sensations without medical and dental evidence for them. It is thought to be a rare disease in psychiatry, but many patients are visiting dental clinics seeking treatment to remove a foreign body. Even though the features of oral cenesthopathy might be different between a psychiatric clinic and a dental clinic, there has been no clinic-statistical study from dentists. Read More
Schizophr Res 2018 Aug 16. Epub 2018 Aug 16.
Department of Psychiatry, University of Oxford, Warneford Hospital, Oxford, UK; Oxford Health NHS Foundation Trust, Oxford, UK.
Sleep disturbance is common among individuals at risk of psychosis, yet few studies have investigated the relationship between sleep disturbance and clinical trajectory. The Early Detection and Intervention Evaluation (EDIE-2) trial provides longitudinal data on sleep duration and individual psychotic experiences from a cohort of individuals at risk of psychosis, which this study utilises in an opportunistic secondary analysis. Shorter and more variable sleep was hypothesised to be associated with more severe psychotic experiences and lower psychological wellbeing. Read More