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https://www.readbyqxmd.com/read/29053770/tourette-syndrome-a-disorder-of-the-social-decision-making-network
#1
Roger L Albin
Tourette syndrome is a common neurodevelopmental disorder defined by characteristic involuntary movements, tics, with both motor and phonic components. Tourette syndrome is usually conceptualized as a basal ganglia disorder, with an emphasis on striatal dysfunction. While considerable evidence is consistent with these concepts, imaging data suggest diffuse functional and structural abnormalities in Tourette syndrome brain. Tourette syndrome exhibits features that are difficult to explain solely based on basal ganglia circuit dysfunctions...
August 22, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29053637/progress-in-genetic-studies-of-tourette-s-syndrome
#2
REVIEW
Yanjie Qi, Yi Zheng, Zhanjiang Li, Lan Xiong
Tourette's Syndrome (TS) is a complex disorder characterized by repetitive, sudden, and involuntary movements or vocalizations, called tics. Tics usually appear in childhood, and their severity varies over time. In addition to frequent tics, people with TS are at risk for associated problems including attention deficit hyperactivity disorder (ADHD), obsessive-compulsive disorder (OCD), anxiety, depression, and problems with sleep. TS occurs in most populations and ethnic groups worldwide, and it is more common in males than in females...
October 20, 2017: Brain Sciences
https://www.readbyqxmd.com/read/29051517/human-attention-affects-facial-expressions-in-domestic-dogs
#3
Juliane Kaminski, Jennifer Hynds, Paul Morris, Bridget M Waller
Most mammalian species produce facial expressions. Historically, animal facial expressions have been considered inflexible and involuntary displays of emotional states rather than active attempts to communicate with others. In the current study, we aimed to test whether domestic dog facial expressions are subject to audience effects and/ or changes in response to an arousing stimulus (e.g. food) alone. We presented dogs with an experimental situation in which a human demonstrator was either attending to them or turned away, and varied whether she presented food or not...
October 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29048743/menopause-is-associated-with-impaired-responsiveness-of-involuntary-pelvic-floor-muscle-contractions-to-sudden-intra-abdominal-pressure-rise-in-women-with-pelvic-floor-symptoms-a-retrospective-study
#4
Wen-Chen Huang, Jenn-Ming Yang
AIMS: To explore the effect of menopause on the movements of the bladder neck and genital hiatus during involuntary and voluntary pelvic floor muscle (PFM) contractions among women with pelvic floor symptoms. METHODS: The data of 162 premenopausal and 215 postmenopausal women were retrospectively analyzed. The investigation encompassed clinical interview, pelvic examination, and four-dimensional ultrasound. The ultrasound manifestations of the bladder neck and genital hiatus during involuntary and voluntary PFM contractions were assessed during coughing and maximal squeezing...
October 19, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/29046518/pretreatment-with-oxycodone-simultaneously-reduces-etomidate-induced-myoclonus-and-rocuronium-induced-withdrawal-movements-during-rapid-sequence-induction
#5
Xiaoxia An, Caixia Li, Zayd Sahebally, Xiaohong Wen, Bing Zhao, Xiangming Fang
BACKGROUND Etomidate and rocuronium are often paired in rapid-sequence anesthesia induction. However, the effect of pretreatment with oxycodone on myoclonic and withdrawal movements has not been previously investigated. The aim of this study was to evaluate the effects of oxycodone on the incidence and severity of etomidate-induced myoclonus and rocuronium-induced nociceptive withdrawal movements during rapid-sequence anesthesia induction. MATERIAL AND METHODS We randomly divided 120 patients into the saline group (group S) and the oxycodone group (group O) (n=60 in each group)...
October 19, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29046477/increased-putamen-hypercapnic-vasoreactivity-in-levodopa-induced-dyskinesia
#6
Vincent A Jourdain, Katharina A Schindlbeck, Chris C Tang, Martin Niethammer, Yoon Young Choi, Daniel Markowitz, Amir Nazem, Dominic Nardi, Nicholas Carras, Andrew Feigin, Yilong Ma, Shichun Peng, Vijay Dhawan, David Eidelberg
In a rodent model of Parkinson's disease (PD), levodopa-induced involuntary movements have been linked to striatal angiogenesis - a process that is difficult to document in living human subjects. Angiogenesis can be accompanied by localized increases in cerebral blood flow (CBF) responses to hypercapnia. We therefore explored the possibility that, in the absence of levodopa, local hypercapnic CBF responses are abnormally increased in PD patients with levodopa-induced dyskinesias (LID) but not in their nondyskinetic (NLID) counterparts...
October 19, 2017: JCI Insight
https://www.readbyqxmd.com/read/29044699/diabetic-striatopathy-manifesting-as-severe-consciousness-disturbance-with-no-involuntary-movements
#7
Hiroki Sato, Makoto Hamano, Etsuko Fushimi, Toshiaki Takahashi, Yohei Horikawa, Satoru Horiguchi
BACKGROUND: Diabetic striatopathy, one of the complications of diabetes mellitus, is characterized by involuntary movements, including hemichorea and hemiballismus, and the presence of hyperintense lesions on T1-weighted magnetic resonance imaging of the striatum. CASE REPORT: We present a case of diabetic striatopathy manifesting as severe consciousness disturbance without chorea or ballismus. A 58-year-old man was admitted to our hospital in a state of unconsciousness...
October 17, 2017: Diabetic Medicine: a Journal of the British Diabetic Association
https://www.readbyqxmd.com/read/29042641/unconscious-avoidance-of-eye-contact-in-autism-spectrum-disorder
#8
Apoorva Rajiv Madipakkam, Marcus Rothkirch, Isabel Dziobek, Philipp Sterzer
Atypical responses to direct gaze are one of the most characteristic hallmarks of autism spectrum disorder (ASD). The cause and mechanism underlying this phenomenon, however, have remained unknown. Here we investigated whether the atypical responses to eye gaze in autism spectrum disorder is dependent on the conscious perception of others' faces. Face stimuli with direct and averted gaze were rendered invisible by interocular suppression and eye movements were recorded from participants with ASD and an age and sex matched control group...
October 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29039022/metformin-inhibits-the-development-of-l-dopa-induced-dyskinesia-in-a-murine-model-of-parkinson-s-disease
#9
Young-Kyoung Ryu, Hye-Yeon Park, Jun Go, Dong-Hee Choi, Yong-Hoon Kim, Jung Hwan Hwang, Jung-Ran Noh, Tae Geol Lee, Chul-Ho Lee, Kyoung-Shim Kim
Metformin is a medication that is widely prescribed for the management of type 2 diabetes. In addition to its anti-diabetic uses, metformin has been proposed as a therapeutically effective drug candidate in various central nervous system disorders, including Parkinson's disease (PD). PD is characterized by severe movement defects and is commonly treated with the dopamine (DA) precursor 3,4-dihydroxyphenyl-l-alanine (L-DOPA). However, prolonged use of L-DOPA can lead to the development of L-DOPA-induced dyskinesia (LID)...
October 16, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/29036940/oculonasal-synkinesis-video-report-and-surgical-solution-of-a-rare-phenomenon
#10
Giuseppe Guarro, Francesco Brunelli, Barbara Rasile, Carmine Alfano
Background: Synkinesis represents involuntary muscular movements that occur in association with voluntary contraction of other muscle groups. Oculonasal synkinesis is a rare phenomenon. Objectives: In a series of videos, the authors present clinical findings and surgical correction of oculonasal synkinesis. Methods: Two women who underwent surgical procedures to correct oculonasal synkinesis were evaluated in a prospective study. One patient presented with bilateral synkinesis after 2 previous rhinoplasties...
September 1, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29032419/objective-assessment-of-the-reliability-of-the-house-brackmann-and-fisch-grading-of-synkinesis
#11
Verena Meier-Gallati, Henning Scriba
The objective of this paper is to assess synkinesis associated with post paretic voluntary facial movements using the objective OSCAR method and to investigate the correlation between synkinesis and paresis to compare the objective results with the subjective scaling systems of Fisch and House-Brackmann. The development of an objective assessment of synkinesis with the OSCAR method is focused on the clinically most relevant eye-mouth and forehead-mouth synkinetic movements. Thirteen patients with unilateral facial paralysis and synkinesis of the University Hospital Zurich were examined...
October 14, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29030322/pain-affects-visual-orientation-an-eye-tracking-study
#12
K Schmidt, M Gamer, K Forkmann, U Bingel
Due to its unique evolutionary relevance, it is understood that pain automatically attracts attention. So far, such attentional bias has mainly been shown for pain-related stimuli whereas little is known about shifts in attentional focus following actual painful stimulation. This study investigated attentional shifts by assessing eye movements into the direction of painful stimulation. Healthy participants were presented either a blank screen or a picture showing a natural scene while painful electrical stimuli were applied to the left or right hand...
October 10, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/29024264/deutetrabenazine-for-tardive-dyskinesia-a-systematic-review-of-the-efficacy-and-safety-profile-for-this-newly-approved-novel-medication-what-is-the-number-needed-to-treat-number-needed-to-harm-and-likelihood-to-be-helped-or-harmed
#13
REVIEW
Leslie Citrome
OBJECTIVE: Deutetrabenazine is a deuterated formulation of tetrabenazine. The aim of this systematic review is to describe the efficacy, tolerability and safety of deutetrabenazine for the treatment of tardive dyskinesia (TD). DATA SOURCES: The pivotal registration trials were accessed by querying http://www.ncbi.nlm.nih.gov/pubmed/ and http://www.clinicaltrials.gov, for the search terms 'deutetrabenazine' OR 'SD-809', and by also querying the EMBASE (Elsevier) commercial database for clinical poster abstracts, and by asking the manufacturer for copies of posters presented at congresses...
October 12, 2017: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/29022654/epidemiology-prevention-and-assessment-of-tardive-dyskinesia-and-advances-in-treatment
#14
Christoph U Correll, John M Kane, Leslie L Citrome
Tardive dyskinesia (TD) is a disorder characterized by involuntary movements, typically of the orofacial muscles and also of the extremities and other muscle groups. The condition is associated with exposure to dopamine receptor blocking agents, including antipsychotics. Because the indications and off-label uses for these agents have expanded over the last 2 decades, a larger number of patients are receiving antipsychotic medications than in the past. While evidence suggests that patients being treated with second-generation antipsychotics have less risk for developing TD than those treated with first-generation antipsychotics, the decreased risk is not as great as was originally expected...
October 10, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/29021750/cough-anal-reflex-may-be-the-expression-of-a-pre-programmed-postural-action
#15
Paolo Cavallari, Francesco Bolzoni, Roberto Esposti, Carlo Bruttini
When coughing, an involuntary contraction of the external anal sphincter occurs, in order to prevent unwanted leakages or sagging of the pelvis muscular wall. Literature originally described such cough-anal response as a reflex elicited by cough, therefore identifying a precise cause-effect relationship. However, recent studies report that the anal contraction actually precedes the rise in abdominal pressure during cough expiratory effort, so that the sphincter activity should be pre-programmed. In recent years, an important family of pre-programmed muscle activities has been well documented to precede voluntary movements: these anticipatory actions play a fundamental role in whole body and segmental postural control, hence they are referred to as anticipatory postural adjustments (APAs)...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28993231/decoding-spoken-phonemes-from-sensorimotor-cortex-with-high-density-ecog-grids
#16
REVIEW
N F Ramsey, E Salari, E J Aarnoutse, M J Vansteensel, M B Bleichner, Z V Freudenburg
For people who cannot communicate due to severe paralysis or involuntary movements, technology that decodes intended speech from the brain may offer an alternative means of communication. If decoding proves to be feasible, intracranial Brain-Computer Interface systems can be developed which are designed to translate decoded speech into computer generated speech or to instructions for controlling assistive devices. Recent advances suggest that such decoding may be feasible from sensorimotor cortex, but it is not clear how this challenge can be approached best...
October 6, 2017: NeuroImage
https://www.readbyqxmd.com/read/28985532/the-role-of-premotor-and-parietal-cortex-during-monitoring-of-involuntary-movement-a-combined-tms-and-tdcs-study
#17
Valentina Bruno, Carlotta Fossataro, Nadia Bolognini, Luca Zigiotto, Giuseppe Vallar, Anna Berti, Francesca Garbarini
Converging evidence on voluntary actions underlays the existence of a motor monitoring system able to compare the predicted and the actual consequences of our movements. In this context, both the premotor cortex (PMC) and the posterior parietal cortex (PPC) play a role in action monitoring and awareness. The present study explores the role of PMC and PPC in monitoring involuntary muscle contractions induced by transcranial magnetic stimulation (TMS) over the hand motor area. To this aim, the effects of transcranial direct current stimulation (tDCS) over PMC and PPC were examined...
September 9, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28983422/speech-language-pathology-evaluation-and-management-of-hyperkinetic-disorders-affecting-speech-and-swallowing-function
#18
REVIEW
Julie M Barkmeier-Kraemer, Heather M Clark
BACKGROUND: Hyperkinetic dysarthria is characterized by abnormal involuntary movements affecting respiratory, phonatory, and articulatory structures impacting speech and deglutition. Speech-language pathologists (SLPs) play an important role in the evaluation and management of dysarthria and dysphagia. This review describes the standard clinical evaluation and treatment approaches by SLPs for addressing impaired speech and deglutition in specific hyperkinetic dysarthria populations. METHODS: A literature review was conducted using the data sources of PubMed, Cochrane Library, and Google Scholar...
2017: Tremor and Other Hyperkinetic Movements
https://www.readbyqxmd.com/read/28975049/oculogyric-crises
#19
Marianne Solberg, Jeanette Koht
BACKGROUND: Oculogyric crises are involuntary movements of the eyeballs and can occur due to different etiologies. PHENOMENOLOGY SHOWN: This video abstract shows a man with oculogyric crises due to side effect of neuroleptics. EDUCATIONAL VALUE: Oculogyric crises are easy to recognize if once seen.
2017: Tremor and Other Hyperkinetic Movements
https://www.readbyqxmd.com/read/28971695/valbenazine-for-the-treatment-of-tardive-dyskinesia
#20
Thomas Müller
Introduction Chronic intake of typical neuroleptics or centrally acting dopamine receptor blocking antiemetics may cause onset of tardive syndromes. Various types exist. One of them is tardive dyskinesia, characterised by often stigmatising, purposeless, rapid, repetitive, stereotypic, involuntary movements of face, limbs or trunk. Effective symptomatic drug treatment options beyond application of tetrabenazine are rare. Tetrabenazine is usually administered three times daily due to the short half life of this agent...
October 3, 2017: Expert Review of Neurotherapeutics
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