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Psychogenic movement disorder

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https://www.readbyqxmd.com/read/27913700/clinical-decision-making-in-functional-and-hyperkinetic-movement-disorders
#1
Sandra M A van der Salm, Anne-Fleur van Rootselaar, Daniëlle C Cath, Rob J de Haan, Johannes H T M Koelman, Marina A J Tijssen
OBJECTIVE: Functional or psychogenic movement disorders (FMD) present a diagnostic challenge. To diagnose FMD, clinicians must have experience with signs typical of FMD and distinguishing features from other hyperkinetic disorders. The aim of this study was to clarify the decision-making process of expert clinicians while diagnosing FMD, myoclonus, and tics. METHODS: Thirty-nine movement disorders experts rated 60 patients using a standardized web-based survey resembling clinical practice...
December 2, 2016: Neurology
https://www.readbyqxmd.com/read/27913698/hyperkinetic-psychogenic-movement-disorders-remain-a-diagnosis-at-first-sight
#2
Peter Hedera, Antonio Gambardella
No abstract text is available yet for this article.
December 2, 2016: Neurology
https://www.readbyqxmd.com/read/27889083/psychogenic-movement-disorders-and-dopamine-transporter-scans-still-a-clinical-diagnosis
#3
Guillermo Moguel-Cobos, Zane Maroney, Jennifer M Erickson, Alexander I Tröster, Davin K Quinn
No abstract text is available yet for this article.
August 25, 2016: Psychosomatics
https://www.readbyqxmd.com/read/27753149/functional-dystonia-and-the-borderland-between-neurology-and-psychiatry-new-concepts
#4
Rachel Newby, Jane Alty, Peter Kempster
Mind-brain dualism has dominated historical commentary on dystonia, a dichotomous approach that has left our conceptual grasp of it stubbornly incomplete. This is particularly true of functional dystonia, most diagnostically challenging of all functional movement disorders, in which the question of inherent psychogenicity remains a focus of debate. Phenomenological signs considered in isolation lack the specificity to distinguish organic and nonorganic forms, and dystonia's variability has frustrated attempts to develop objective laboratory-supported standards...
October 18, 2016: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/27719868/factitious-disorders-and-malingering-in-relation-to-functional-neurologic-disorders
#5
C Bass, P Halligan
Interest in malingering has grown in recent years, and is reflected in the exponential increase in academic publications since 1990. Although malingering is more commonly detected in medicolegal practice, it is not an all-or-nothing presentation and moreover can vary in the extent of presentation. As a nonmedical disorder, the challenge for clinical practice remains that malingering by definition is intentional and deliberate. As such, clinical skills alone are often insufficient to detect it and we describe psychometric tests such as symptom validity tests and relevant nonmedical investigations...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/27719859/functional-voice-disorders-clinical-presentations-and-differential-diagnosis
#6
J Baker
In this chapter, an overview of the heterogeneous group of functional voice disorders is given, including the psychogenic voice disorder (PVD) and hyperfunctional or muscle tension voice disorder (MTVD) subgroups. Reference is made to prevalence and demographic data, with empiric evidence for psychosocial factors commonly associated with the onset and maintenance of these disorders. Clinical features that distinguish between the different presentations of PVD and MTVD are described. While there are some shared characteristics, key differences between these two subgroups indicate that PVD more closely resembles the psychogenic movement disorders and a range of other functional neurologic disorders...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/27719854/functional-eye-movement-disorders
#7
D Kaski, A M Bronstein
Functional (psychogenic) eye movement disorders are perhaps less established in the medical literature than other types of functional movement disorders. Patients may present with ocular symptoms (e.g., blurred vision or oscillopsia) or functional eye movements may be identified during the formal examination of the eyes in patients with other functional disorders. Convergence spasm is the most common functional eye movement disorder, but functional gaze limitation, functional eye oscillations (also termed "voluntary nystagmus"), and functional convergence paralysis may be underreported...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/27719847/functional-sensory-symptoms
#8
J Stone, M Vermeulen
Functional (psychogenic) sensory symptoms are those in which the patient genuinely experiences alteration or absence of normal sensation in the absence of neurologic disease. The hallmark of functional sensory symptoms is the presence of internal inconsistency revealing a pattern of symptoms governed by abnormally focused attention. In this chapter we review the history of this area, different clinical presentations, diagnosis (including sensitivity of diagnostic tests), treatment, experimental studies, and prognosis...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/27719846/functional-gait-disorder
#9
V S C Fung
Gait disorder is a common accompaniment of functional neurologic disorders. The diagnosis of a functional or psychogenic gait is complex. It requires a sound knowledge of the range of phenomenology observed in organic movement disorders, the ability to evaluate and diagnose nonmovement disorder neurologic symptoms and signs, but additionally knowledge of potential musculoskeletal causes of gait disturbance. A stepwise approach to the analysis of the phenomenology and separation into four (sometimes overlapping) psychogenic gait syndromes is suggested to aid diagnosis: (1) movement disorder mimics; (2) neurologic (nonmovement disorder) mimics; (3) musculoskeletal or biomechanical mimics; and (4) isolated disequilibrium or balance disorders...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/27719845/psychogenic-functional-parkinsonism
#10
M A Thenganatt, J Jankovic
Psychogenic parkinsonism (PP), although often quite disabling, is one of the least commonly reported subtypes of psychogenic movement disorders. There are certain features that help distinguish PP from idiopathic Parkinson's disease, such as abrupt onset, early disability, bilateral shaking and slowness, nondecremental slowness when performing repetitive movements, voluntary resistance against passive movement without cogwheel rigidity, distractibility, "give-way" weakness, stuttering speech, bizarre gait, and a variety of behavioral symptoms...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/27719839/neurologic-diagnostic-criteria-for-functional-neurologic-disorders
#11
C Gasca-Salas, A E Lang
The diagnosis of functional neurologic disorders can be challenging. In this chapter we review the diagnostic criteria and rating scales reported for functional/psychogenic sensorimotor disturbances, psychogenic nonepileptic seizures (PNES) and functional movement disorders (FMD). A recently published scale for sensorimotor signs has some limitations, but may help in the diagnosis, and four motor and two sensory signs have been reported as highly reliable. There is good evidence using eight specific signs for the differentiation of PNES from seizures...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/27698453/possible-neural-mechanisms-of-psychotherapy-for-trauma-related-symptoms-cerebral-responses-to-the-neuropsychological-treatment-of-post-traumatic-stress-disorder-model-individuals
#12
Tamaki Amano, Motomi Toichi
Psychotherapy is often effective for treating psychogenic disorders, but the changes that occur in the brain during such treatments remain unknown. To investigate this, we monitored cerebral activity throughout an entire session using a psychotherapeutic technique in healthy subjects. Since post-traumatic stress disorder (PTSD) is a typical psychogenic psychiatric disorder, we used PTSD-model volunteers who had experienced a moderately traumatic event. The technique used as psychotherapy was eye movement desensitisation and reprocessing (EMDR), a standard method for treating PTSD...
October 4, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27667488/-clinical-features-and-treatment-of-hashimoto-encephalopathy
#13
Yoshimitsu Maki, Hiroshi Takashima
Hashimoto encephalopathy (HE) is characterized by heterogeneous neurological symptoms. HE is diagnosed based on three criteria-the presence of antithyroid antibodies, neurological symptoms from the cerebrum and/or cerebellum, and a positive response to immunotherapy. We clinically analyzed 18 patients (3 men, 15 women; age range, 38-81years) diagnosed with HE in our hospital from May 2013 to January 2016. Eleven patients showed sensory abnormalities such as strong pain, deep muscle pain, dysesthesia, paresthesia, or neuralgia...
September 2016: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/27663118/transcranial-magnetic-stimulation-as-a-treatment-for-functional-psychogenic-upper-limb-weakness
#14
Laura McWhirter, Lea Ludwig, Alan Carson, Robert D McIntosh, Jon Stone
OBJECTIVE: There has been a recent resurgence of interest in physical treatments for functional motor disorders (FMD) including Transcranial Magnetic Stimulation (TMS). This pilot study aimed to test the effectiveness of a single session of motor cortex TMS as a treatment for functional upper limb weakness. METHODS: Ten subjects with a diagnosis of functional upper limb weakness were randomised to immediate (n=7) or delayed (3months) (n=3) TMS treatment. Median age was 35 (range 23-52) and median symptom duration was 2...
October 2016: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/27568397/to-jerk-or-not-to-jerk-a-clinical-pathophysiology-of-myoclonus
#15
E Apartis, L Vercueil
Myoclonus is a sudden brief (20-250 ms) contraction (positive myoclonus), or a brief and sudden cessation of tonic muscle (negative myoclonus) inducing a simple jerky movement of body part. Myoclonus could have different origins in almost every part of the nervous system, from the cortex to the peripheral nerve, sharing a large panel of etiologies. It is regarded as the paradigmatic movement disorder causing jerks, although not the sole. This paper aims to depict the clinical and neurophysiological characteristics of myoclonus...
August 2016: Revue Neurologique
https://www.readbyqxmd.com/read/27495203/movement-disorders-presenting-in-childhood
#16
Manju A Kurian, Russell C Dale
PURPOSE OF REVIEW: This article provides an overview of movement disorders that present in childhood. Key clinical features are discussed, and a brief guide to management strategies is provided. Recent advances in the field of pediatric movement disorders are also a focus of the article. RECENT FINDINGS: Advances in genetic technologies and cell biology have contributed greatly to the elucidation of underlying disease mechanisms in childhood movement disorders. This article discusses the expanding spectrum of both genetic and acquired movement disorders that present in childhood, including benign, acquired, genetic, and psychogenic movement disorders...
August 2016: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/27445247/functional-disorders-in-neurology-case-studies
#17
REVIEW
Jon Stone, Ingrid Hoeritzauer, Jeannette Gelauff, Alex Lehn, Paula Gardiner, Anne van Gils, Alan Carson
Functional, often called psychogenic, disorders are common in neurological practice. We illustrate clinical issues and highlight some recent research findings using six case studies of functional neurological disorders. We discuss dizziness as a functional disorder, describing the relatively new consensus term Persistent Posturo-Perceptual Dizziness (PPPD), axial jerking/myoclonus as a functional movement disorder, functional speech symptoms, post-concussion disorder with functional cognitive symptoms and finally advances in treatment of dissociative seizures and functional motor disorders...
August 2016: Neurologic Clinics
https://www.readbyqxmd.com/read/27430001/ultrasound-as-diagnostic-tool-for-diaphragmatic-myoclonus
#18
Vesper Fe Marie Llaneza Ramos, Elaine Considine, Barbara I Karp, Codrin Lungu, Katharine Alter, Mark Hallett
BACKGROUND: Diaphragmatic myoclonus is a rare disorder of repetitive diaphragmatic contractions, acknowledged to be a spectrum that includes psychogenic features. Electromyography has been the diagnostic tool most commonly used in the literature. METHODS: To test if we could perform a noninvasive technique to delineate the diaphragm as the source of abnormal movements and demonstrate distractibility and entrainability, we used B-mode ultrasound in a patient with diaphragmatic myoclonus...
May 2016: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/27392833/the-development-of-the-icf-vestibular-environmental-scale
#19
Susan L Whitney, Ahmad Alghadir, Alia Alghwiri, Kefah M Alshebber, Mohammed Alshehri, Joseph M Furman, Martin Mueller, Eva Grill
UNLABELLED: People with vestibular disorders report changes in symptoms based on their environment with many situations increasing their symptoms. The purpose of this paper was to utilize the International Classification of Functioning Disability and Health (ICF) from the World Health Organization (WHO) to describe common environmental triggers for dizziness in persons living with balance and vestibular disorders. A multi-centre cross-sectional study was conducted with four different centres on three different continents, including patients from the United States (Pittsburgh), Germany (Munich), Jordan (Amman) and Saudi Arabia (Riyadh)...
July 2, 2016: Journal of Vestibular Research: Equilibrium & Orientation
https://www.readbyqxmd.com/read/27172667/-updated-relationship-between-sleep-and-erectile-function
#20
Fan-bo Zhang, Rui Jiang
Penile erection (PE) is a physiological phenomenon involving complex mechanisms. PE may occur as reactive erections, psychogenic erections in the conscious state and spontaneous erections during the sleep. Sleep-related PE refers to the erections occurring spontaneously during the sleep with rapid eye movement. Studies have shown a correlation between sleep and PE as well as between sleep disorders and erectile dysfunction but not yet revealed the exact mechanisms. This paper updates the relationship between sleep and erectile function...
March 2016: Zhonghua Nan Ke Xue, National Journal of Andrology
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