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Tdcs vigilence

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https://www.readbyqxmd.com/read/27708612/counteracting-fatigue-in-multiple-sclerosis-with-right-parietal-anodal-transcranial-direct-current-stimulation
#1
Katrin Hanken, Mona Bosse, Kim Möhrke, Paul Eling, Andreas Kastrup, Andrea Antal, Helmut Hildebrandt
BACKGROUND: Fatigue in multiple sclerosis (MS) patients appears to correlate with vigilance decrement as reflected in an increase in reaction time (RT) and errors with prolonged time-on-task. OBJECTIVES: The aim of this study was to investigate whether anodal transcranial direct current stimulation (tDCS) over the right parietal or frontal cortex counteracts fatigue-associated vigilance decrement and subjective fatigue. METHODS: In study I, a randomized double-blind placebo-controlled study, anodal tDCS (1...
2016: Frontiers in Neurology
https://www.readbyqxmd.com/read/27322602/efficacy-and-safety-of-combining-clozapine-with-electrical-or-magnetic-brain-stimulation-in-treatment-refractory-schizophrenia
#2
Shyam Sundar Arumugham, Jagadisha Thirthalli, Chittaranjan Andrade
INTRODUCTION: A substantial proportion (40-70%) of patients with treatment-resistant schizophrenia experience persistent symptoms despite an adequate clozapine trial. Brain stimulation techniques (BST) such as electroconvulsive therapy (ECT), repetitive transcranial magnetic stimulation (rTMS), and transcranial direct current stimulation (tDCS) have shown promise in medication-refractory schizophrenia. However, their co-administration with clozapine raises some safety concerns. AREAS COVERED: We conducted a systematic literature search through Pubmed and cross-references for relevant publications evaluating the safety and efficacy of combining BST with clozapine...
September 2016: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/26250473/effects-of-transcranial-direct-current-stimulation-upon-attention-and-visuoperceptual-function-in-lewy-body-dementia-a-preliminary-study
#3
Greg J Elder, Michael J Firbank, Hrishikesh Kumar, Payel Chatterjee, Titas Chakraborty, Alakananda Dutt, John-Paul Taylor
BACKGROUND: Individuals with Lewy body dementia (LBD) typically exhibit impairments in attentional and executive function. Current pharmacological treatments have limited efficacy, with associated side effects. Transcranial direct current stimulation (tDCS) may represent an alternative treatment, as cognitive improvements have been demonstrated in healthy individuals. However, no studies to date have assessed the feasibility of tDCS in an LBD population. The aim of this preliminary study, therefore, was to assess the tolerability of tDCS, as well as its effects upon attentional and visuoperceptual performance, in LBD patients...
February 2016: International Psychogeriatrics
https://www.readbyqxmd.com/read/26210058/frontal-cortex-stimulation-reduces-vigilance-to-threat-implications-for-the-treatment-of-depression-and-anxiety
#4
Maria Ironside, Jacinta O'Shea, Philip J Cowen, Catherine J Harmer
BACKGROUND: The difficulty in treating mood disorders has brought about clinical interest in alternative treatments, such as transcranial direct current stimulation (tDCS) of the dorsolateral prefrontal cortex (DLPFC). However, the optimal parameters for stimulation and underlying mechanisms of action are unclear. Psychiatric treatments have acute effects on emotional processing that predict later therapeutic action. Such effects have been proposed as cognitive biomarkers for screening novel treatments for depression and anxiety...
May 15, 2016: Biological Psychiatry
https://www.readbyqxmd.com/read/26190299/effects-of-transcranial-direct-current-stimulation-tdcs-on-cognition-symptoms-and-smoking-in-schizophrenia-a-randomized-controlled-study
#5
RANDOMIZED CONTROLLED TRIAL
Robert C Smith, Sylvia Boules, Sanela Mattiuz, Mary Youssef, Russell H Tobe, Henry Sershen, Abel Lajtha, Karen Nolan, Revital Amiaz, John M Davis
Schizophrenia is characterized by cognitive deficits which persist after acute symptoms have been treated or resolved. Transcranial direct current stimulation (tDCS) has been reported to improve cognition and reduce smoking craving in healthy subjects but has not been as carefully evaluated in a randomized controlled study for these effects in schizophrenia. We conducted a randomized double-blind, sham-controlled study of the effects of 5 sessions of tDCS (2 milliamps for 20minutes) on cognition, psychiatric symptoms, and smoking and cigarette craving in 37 outpatients with schizophrenia or schizoaffective disorder who were current smokers...
October 2015: Schizophrenia Research
https://www.readbyqxmd.com/read/25047826/a-comparison-of-the-effects-of-transcranial-direct-current-stimulation-and-caffeine-on-vigilance-and-cognitive-performance-during-extended-wakefulness
#6
RANDOMIZED CONTROLLED TRIAL
Lindsey K McIntire, R Andy McKinley, Chuck Goodyear, Justin Nelson
BACKGROUND: Sleep deprivation from extended duty hours is a common complaint for many occupations. Caffeine is one of the most common countermeasures used to combat fatigue. However, the benefits of caffeine decline over time and with chronic use. OBJECTIVE: Our objective was to evaluate the efficacy of anodal transcranial direct current stimulation (tDCS) applied to the pre-frontal cortex at 2 mA for 30 min to remediate the effects of sleep deprivation and to compare the behavioral effects of tDCS with those of caffeine...
July 2014: Brain Stimulation
https://www.readbyqxmd.com/read/23235272/enhancing-vigilance-in-operators-with-prefrontal-cortex-transcranial-direct-current-stimulation-tdcs
#7
RANDOMIZED CONTROLLED TRIAL
Jeremy T Nelson, R Andy McKinley, Edward J Golob, Joel S Warm, Raja Parasuraman
Sustained attention, often referred to as vigilance in humans, is the ability to maintain goal-directed behavior for extended periods of time and respond to intermittent targets in the environment. With greater time-on-task the ability to detect targets decreases and reaction time increases-a phenomenon termed the vigilance decrement. The purpose of this study was to examine the role of dorsolateral prefrontal cortex in the vigilance decrement. Subjects (n=19) received prefrontal transcranial direct current stimulation (tDCS) at one of two different time points during a vigilance task (early or late)...
January 15, 2014: NeuroImage
https://www.readbyqxmd.com/read/22215866/transcranial-direct-current-stimulation-for-depression-3-week-randomised-sham-controlled-trial
#8
RANDOMIZED CONTROLLED TRIAL
Colleen K Loo, Angelo Alonzo, Donel Martin, Philip B Mitchell, Veronica Galvez, Perminder Sachdev
BACKGROUND: Preliminary evidence suggests transcranial direct current stimulation (tDCS) has antidepressant efficacy. AIMS: To further investigate the efficacy of tDCS in a double-blind, sham-controlled trial (registered at www.clinicaltrials.gov: NCT00763230). METHOD: Sixty-four participants with current depression received active or sham anodal tDCS to the left prefrontal cortex (2 mA, 15 sessions over 3 weeks), followed by a 3-week open-label active treatment phase...
January 2012: British Journal of Psychiatry: the Journal of Mental Science
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