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"conversion disorder"

Rotem Monsa, Michael Peer, Shahar Arzy
BACKGROUND: Conversion disorder (CD), or functional neurological disorder, is manifested as a neurological disturbance that is not macroscopically visible in clinical structural neuroimaging, and is instead ascribed to underlying psychological stress. Known for many years in neuropsychiatry, a comprehensive explanation to the way by which psychological stress leads to a neurological deficit of a structural-like origin is still a mystery. METHODS: We applied whole-brain network-based data-driven analyses on resting-state functional MRI, recorded in seven CD patients with unilateral paresis and hypoesthesia as compared to 15 age-matched healthy controls...
March 6, 2018: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
Matt Richardson, Gina Isbister, Brad Nicholson
BACKGROUND: Theories concerning the aetiology of functional neurological symptom disorder (FNSD; also known as conversion disorder) have historically inferred that psychological factors or dissociative states underlie patients' symptoms. Current psychological models of functional neurological symptoms suggest that some type of 'top-down' representations/beliefs are activated automatically (without conscious awareness), leading to symptoms. It is assumed that these representations or beliefs are similar to the idea 'I am neurologically damaged', as in our clinical experience, almost all patients have some reason to doubt the integrity of their neurological system...
February 21, 2018: Behavioural and Cognitive Psychotherapy
Milad Hosseinialhashemi, Babak Daneshfard, Atefe Hashemi
Hallervorden-Spatz syndrome is a rare neurodegenerative disorder with hereditary properties. It usually occurs in young adolescents with extrapyramidal symptoms besides disturbed mental function. In this study, we present a 23-year-old neuropsychiatric patient who primarily misdiagnosed to have conversion disorder. She had 5-year history of progressive dysarthria and generalized abnormal movements. After detecting the pathognomonic sign of "eye of the tiger" diagnosis was confirmed. The patient was discharged...
January 2018: Acta Medica Iranica
Fabio Pizza, Elena Antelmi, Stefano Vandi, Stefano Meletti, Roberto Erro, Christian R Baumann, Kailash P Bhatia, Yves Dauvilliers, Mark J Edwards, Alex Iranzo, Sebastiaan Overeem, Michele Tinazzi, Rocco Liguori, Giuseppe Plazzi
Objectives: To describe the motor pattern of cataplexy and to determine its phenomenological differences from pseudocataplexy in the differential diagnosis of episodic falls. Methods: We selected 30 video recorded cataplexy and 21 pseudocataplexy attacks in 17 and 10 patients evaluated for suspected narcolepsy and with final diagnosis of narcolepsy type 1 and conversion disorder respectively, together with self-reported attacks features, and asked expert neurologists to blindly evaluate the motor features of the attacks...
February 7, 2018: Sleep
Chris P Stephenson, Ian J Baguley
Functional Neurological Symptom Disorder (FND) is a relatively common neurological condition, accounting for approximately 3-6% of neurologist referrals. FND is considered a transient disorder of neuronal function, sometimes linked to physical trauma and psychological stress. Despite this, chronic disability is common, for example, around 40% of adults with motor FND have permanent disability. Building on current theoretical models, this paper proposes that microglial dysfunction could perpetuate functional changes within acute motor FND, thus providing a pathophysiological mechanism underlying the chronic stage of the motor FND phenotypes seen clinically...
February 2018: Medical Hypotheses
Kevin M Broderick, Thomas B Ableman, Eric D Weber, Robert W Enzenauer, Harold J Wain, Keith J Wroblewski
Non-organic visual loss (NOVL), defined as a decrease in visual acuity or field without an identifiable organic cause, can be challenging to diagnose, especially in patients whose NOVL is superimposed on some component of true organic pathology. Exposure to combat puts soldiers at risk of emotional distress and physical trauma, which can contribute to the development of NOVL with conversion disorder or malingering. This case series describes six patients with NOVL who sustained ocular or non-ocular injuries while serving in combat operations in Iraq and Afghanistan, and highlights diagnostic pearls and components of inter-disciplinary management in the unique military context...
August 2017: Neuro-ophthalmology
John A O'Neil
Hypnosis predates psychoanalysis, when autohypnotic pathologies were identified through the lens of hypnosis, and labeled "hypnoid hysteria" in the language of the day. The broad spectrum of disorders then subsumed under that term is still reflected in ICD-10's subset, "F44-Dissociative (Conversion) Disorders." Freud initially embraced both hypnoid hysteria and hypnosis, but came to abandon hypnosis and, by extension, hypnoid hysteria as well. Since that fateful decision, which I term herein Freud's "Inaugural Category Mistake," references to both hypnosis and hypnoid pathology largely vanished from the psychoanalytic mainstream, thereby neglecting conditions afflicting a significant portion of the mentally ill, and needlessly restricting the therapeutic repertoire of psychoanalysis...
January 2018: American Journal of Clinical Hypnosis
Zeynep Kotan, Vahap Ozan Kotan, Hayriye Dilek Yalvaç, Sibel Demir
Domestic violence (DV) against women is a serious problem with its negative effects on all family members and the society. Women exposed to DV not only have physical but also psychological damage. This study investigates prevalence of DV and its relations with some descriptive and clinical features in a psychiatric outpatient population in Turkey. A total of 277 female outpatients were included in the study. After a semistructured clinical interview, they were assessed by sociodemographic data form, DV questionnaire, Hamilton Depression Rating Scale (HDRS), Hamilton Anxiety Rating Scale (HARS), Dissociative Experiences Scale (DES), and Somatoform Dissociation Questionnaire (SDQ)...
April 1, 2017: Journal of Interpersonal Violence
Moussa Toudou Daouda, Siham Bouchal, Naima Chtaou, Aouatef Midaoui, Zouahyr Souirti, Faouzi Belahsen
BACKGROUND: Thrombolysis alert (TA) is a procedure triggered every time a patient consults for sudden focal neurological deficit within 4.5 hours. OBJECTIVE: We aimed to determine firstly the etiological profile of TA and secondly to evaluate the delays in the management not only of thrombolyzed patients but also of nonthrombolyzed patients to determine the intrahospital delays to optimize. METHODS: Patients aged over 18 years who consulted for sudden focal neurological deficit within 4...
December 29, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
Geoffrey L Heyer
BACKGROUND: Little is known about somatic and psychiatric symptoms and perceived peer relationships of patients with psychogenic nonsyncopal collapse. OBJECTIVE: This study aimed to compare somatic and psychiatric symptoms and other elements potentially related to functional neurological symptom disorders between youth with psychogenic nonsyncopal collapse and those with neurally mediated syncope. METHODS: Before testing, patients completed a structured interview and questionnaire addressing current symptoms, previous psychiatric diagnoses, referrals, diagnostic testing, prescribed medications, and patient self-ratings of anxiety, depression, and perceived peer relationships...
November 20, 2017: Pediatric Neurology
Saeed Razmeh, Amir Hasan Habibi, Farzad Sina, Elham Alizadeh, Monireh Eslami
Background: Stiff person syndrome (SPS) is a rare neurological disease resulting in stiffness and spasm of muscles. It initially affects the axial muscles and then spread to limb muscles. Emotional stress exacerbated the symptoms and signs of the disease. The pathophysiology of the disease is caused by the decreased level of the glutamic acid decarboxylase (GAD) activity due to an autoantibody against GAD that decreases the level of gamma-aminobutyric acid (GABA). In this paper, we present a case of atypical presentation of SPS with lower limb stiffness misdiagnosed as conversion disorder...
2017: Caspian Journal of Internal Medicine
Gabriel Cea M, Claudio Henríquez A, Carlos Tapia
No abstract text is available yet for this article.
June 2017: Revista Médica de Chile
Silvio Galli, Laurent Tatu, Julien Bogousslavsky, Selma Aybek
This chapter is aimed at highlighting the recent findings concerning physiopathology, diagnosis, and management of conversion, factitious disorder, and malingering. Conversion disorder is the unintentional production of neurological symptom, whereas malingering and factitious disorder represent the voluntary production of symptoms with internal or external incentives. They have a close history and this has been frequently confounded. Practitioners are often confronted to medically unexplained symptoms; they represent almost 30% of neurologist's consultation...
2018: Frontiers of Neurology and Neuroscience
Sebastian Dieguez
Ganser's syndrome is a rare and controversial condition, whose main and most striking feature is the production of approximate answers (or near misses) to very simple questions. For instance, asked how many legs a horse has, Ganser patients will reply "5", and answers to plain arithmetic questions will likewise be wrong, but only slightly off the mark (e.g., 2 + 2 = 3). This symptom was originally described by Sigbert Ganser in 1897 in prisoners on remand and labeled Vorbeigehen ("to pass by"), although the term Vorbeireden ("to talk beside the point") is also frequently used...
2018: Frontiers of Neurology and Neuroscience
Y Faiad, B Khoury, S Daouk, M Maj, J Keeley, O Gureje, G Reed
AIMS: The study aimed to examine variations in the use of International Classification of Diseases, Tenth Edition (ICD-10) diagnostic categories for mental and behavioural disorders across countries, regions and income levels using data from the online World Psychiatric Association (WPA)-World Health Organization (WHO) Global Survey that examined the attitudes of psychiatrists towards the classification of mental disorders. METHODS: A survey was sent to 46 psychiatric societies which are members of WPA...
November 9, 2017: Epidemiology and Psychiatric Sciences
David L Perez, Nassim Matin, Benjamin Williams, Kaloyan Tanev, Nikos Makris, W Curt LaFrance, Bradford C Dickerson
BACKGROUND: Links between dissociation and functional neurological disorder (FND)/conversion disorder are well-established, yet the pathophysiology of dissociation remains poorly understood. This MRI study investigated structural alterations associated with somatoform and psychological dissociation in FND. We hypothesized that multimodal, paralimbic cingulo-insular regions would relate to the severity of somatoform dissociation in patients with FND. METHODS: FreeSurfer cortical thickness and subcortical volumetric analyses were performed in 26 patients with motor FND and 27 matched healthy controls...
January 2018: Human Brain Mapping
Junkyu Chung, Kyung Hyun Jin, Jaheon Kang, Tae Gi Kim
RATIONALE: Functional visual loss (FVL) can manifest as various symptoms. Decreased distant visual acuity is the most common symptom and visual field defect is the second most common symptom. Hemianopsia is rarely reported. In an atypical situation of FVL, it is important to prove that no organic pathology exists, through detailed history taking and appropriate examinations. PATIENT CONCERNS: This review presents the case of a 48-year-old male patient presented with decreased bilateral visual acuity and visual field defect after a traffic accident 3 weeks ago...
October 2017: Medicine (Baltimore)
Robert D McIntosh, Laura McWhirter, Lea Ludwig, Alan Carson, Jon Stone
Functional motor disorder (FMD), also called psychogenic motor disorder or conversion disorder, describes impairments of motor function where there is no evidence of organic disease. The diagnosis is usually confirmed by positive clinical signs, such as Hoover's sign, in which normal power returns when attention is diverted away from the affected limb. This suggests that selective attention is an important determinant of these functional symptoms. The present study is the first specifically to explore the shifting of spatial attention in relation to the side of FMD...
September 28, 2017: Neuropsychologia
Lisa Lyssenko, Christian Schmahl, Laura Bockhacker, Ruben Vonderlin, Martin Bohus, Nikolaus Kleindienst
OBJECTIVE: Dissociation is a complex, ubiquitous construct in psychopathology. Symptoms of dissociation are present in a variety of mental disorders and have been connected to higher burden of illness and poorer treatment response, and not only in disorders with high levels of dissociation. This meta-analysis offers a systematic and evidence-based study of the prevalence and distribution of dissociation, as assessed by the Dissociative Experiences Scale, within different categories of mental disorders, and it updates an earlier meta-analysis...
January 1, 2018: American Journal of Psychiatry
Semih Gungor, Rohit Aiyer
Postoperative acute visual loss due to organic pathology has been described after spinal surgery in the prone position. This report describes a case of transient postoperative blindness in a patient after general anesthesia and surgery in the prone position. Postoperative workup did not reveal any organic pathology. Unbeknown to the treating physicians, the patient had a comorbid untreated psychiatric history. Upon psychiatric consultation, the patient was diagnosed with conversion disorder as a cause of postoperative blindness...
September 2017: Pain Management
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