scholarly journals Non-invasive Transcranial Electrical Stimulation in Movement Disorders

2020 ◽  
Vol 14 ◽  
Author(s):  
Jacky Ganguly ◽  
Aditya Murgai ◽  
Soumya Sharma ◽  
Dorian Aur ◽  
Mandar Jog
Keyword(s):  
Electrical Stimulation ◽  
Movement Disorders ◽  
Transcranial Electrical Stimulation ◽  
Non Invasive

scholarly journals Modern concepts of the pathogenesis of obesity and new approaches to its correction

2018 ◽  
Vol 15 (2) ◽  
pp. 11-16
Author(s):  
Oksana V. Logvinova ◽  
Alexandra G. Poydasheva ◽  
Ilya S. Bakulin ◽  
Olga V. Lagoda ◽  
Elena I. Kremneva ◽  
...  
Keyword(s):  
Eating Disorders ◽  
Electrical Stimulation ◽  
Transcranial Magnetic Stimulation ◽  
Brain Stimulation ◽  
Magnetic Stimulation ◽  
Cellular Level ◽  
Transcranial Electrical Stimulation ◽  
Food Behavior ◽  
Physiological Mechanisms ◽  
Non Invasive

The present review considers modern concepts of the physiological mechanisms of the formation of food behavior in a norm at several levels, beginning with the cellular level and ending with the level of functional systems. Neuroimaging methods used for both the study of the pathophysiological foundations of eating disorders and for determining the target for neurostimulation techniques are described. Methods of non-invasive brain stimulation such as transcranial magnetic stimulation and transcranial electrical stimulation, the mechanisms of their influence and aspects of safety of application are reviewed, the latest data on the results of studies on the use of the above methods in the therapy of obesity are summarized.

scholarly journals fMRI and Transcranial Electrical Stimulation (tES): A systematic review of parameter space and outcomes

2020 ◽  
Author(s):  
Peyman Ghobadi-Azbari ◽  
Asif Jamil ◽  
Fatemeh Yavari ◽  
Zeinab Esmaeilpour ◽  
Nastaran Malmir ◽  
...  
Keyword(s):  
Systematic Review ◽  
Electrical Stimulation ◽  
Parameter Space ◽  
Brain Activity ◽  
Random Noise ◽  
Brain Regions ◽  
Transcranial Electrical Stimulation ◽  
Future Studies ◽  
Non Invasive ◽  
And Behavior

AbstractThe combination of non-invasive brain stimulation interventions with human brain mapping methods have supported research beyond correlational associations between brain activity and behavior. Functional MRI (fMRI) partnered with transcranial electrical stimulation (tES) methods, i.e., transcranial direct current (tDCS), transcranial alternating current (tACS), and transcranial random noise (tRNS) stimulation, explore the neuromodulatory effects of tES in the targeted brain regions and their interconnected networks and provide opportunities for individualized interventions. Advances in the field of tES-fMRI can be hampered by the methodological variability between studies that confounds comparability/replicability. In order to explore variability in the tES-fMRI methodological parameter space (MPS), we conducted a systematic review of 222 tES-fMRI experiments (181 tDCS, 39 tACS and 2 tRNS) published before February 1, 2019, and suggested a framework to systematically report main elements of MPS across studies. We have organized main findings in terms of fMRI modulation by tES. tES modulates activation and connectivity beyond the stimulated areas particularly with prefrontal stimulation. There were no two studies with the same MPS to replicate findings. We discuss how to harmonize the MPS to promote replication in future studies.

scholarly journals One-shot tagging during wake and cueing during sleep with spatiotemporal patterns of transcranial electrical stimulation can boost long-term metamemory of individual episodes in humans

2019 ◽  
Author(s):  
Praveen K. Pilly ◽  
Steven W. Skorheim ◽  
Ryan J. Hubbard ◽  
Nicholas A. Ketz ◽  
Shane M. Roach ◽  
...  
Keyword(s):  
Electrical Stimulation ◽  
Real World ◽  
Spectral Power ◽  
Memory Performance ◽  
Nrem Sleep ◽  
Transcranial Electrical Stimulation ◽  
Sensory Cues ◽  
Non Invasive ◽  
Episodic Memories ◽  
The One

AbstractTargeted memory reactivation (TMR) during slow-wave oscillations (SWOs) in non-rapid eye movement (NREM) sleep has been demonstrated with sensory cues to achieve about 5-12% improvement in post-nap memory performance on simple laboratory tasks. But prior work has neither addressed the one-shot aspect of episodic memory acquisition, nor dealt with the presence of interference from ambient environmental cues in real-world settings for the sensory cues. Moreover, TMR with sensory cues may not be scalable to the multitude of experiences over one’s lifetime. We designed a novel non-invasive paradigm that tags one-shot experiences of minute-long naturalistic episodes within immersive virtual reality (VR) with unique spatiotemporal amplitude-modulated patterns (STAMPs) of transcranial electrical stimulation (tES) and cues them during SWOs. In particular, we demonstrate that these STAMPs can be re-applied as brief pulses to temporally coincide with UP states of SWOs (0.4167 – 1 s) on two consecutive nights to achieve about 20% improvement in the metamemory of targeted episodes at 48 hours after the one-shot viewing, compared to the control episodes. Post-sleep metamemory of the targeted episodes was driven by an interaction between their pre-sleep metamemory and the number of STAMP applications for those episodes during sleep. Overnight metamemory improvements were mediated by spectral power increases from 6.18 to 6.7 s following the offset of STAMPs in the slow-spindle band (9-12 Hz) for left temporal areas in the scalp electroencephalography (EEG) during sleep. These results prescribe an optimal strategy to leverage STAMPs for boosting metamemory and suggest that real-world episodic memories can be modulated in a targeted manner even with coarser, non-invasive spatiotemporal stimulation.

scholarly journals T188. THE CLINICAL SCIENCE OF TRANSCRANIAL DIRECT CURRENT STIMULATION STUDIES IN SCHIZOPHRENIA: SYSTEMATIC REVIEW AND META-ANALYSIS

2020 ◽  
Vol 46 (Supplement_1) ◽  
pp. S303-S303
Author(s):  
Joshua Mervis ◽  
Angus MacDonald
Keyword(s):  
Electrical Stimulation ◽  
Direct Current ◽  
Transcranial Direct Current Stimulation ◽  
Meta Analysis ◽  
Transcranial Electrical Stimulation ◽  
Direct Current Stimulation ◽  
Non Invasive ◽  
Schizophrenia Spectrum ◽  
Pubmed Database ◽  
Study Characteristics

Abstract Background Transcranial direct current stimulation interventions have produced findings that inform clinical neuroscience, and may have potential as a treatment for the cognitive symptoms of schizophrenia-spectrum illnesses. The first recorded study of tDCS in this population was in 1994 and every year since then has seen growth in the number of studies conducted, with 15+ studies each year since 2013. This project is a meta-analysis of studies using transcranial direct current stimulation in people with schizophrenia-spectrum illnesses and any domain of cognition. Methods Search terms sought out articles in populations with schizophrenia, schizoaffective, schizotypal, schizoid, unspecified psychosis, and thought disorder illnesses. Within these populations, non-invasive electrical stimulation terms included transcranial direct current stimulation, tDCS, and transcranial electrical stimulation. Within those studies, cognitive terms included working memory, memory, cognitive control, executive function, attention, recall, recognition, perception, learning, cognition, inhibition, and executive control. PRISMA guidelines were followed. Results 177 Articles were located through a literature search using the PubMed database. 39 studies were screened out by title, 102 studies were screened out by abstract, 7 studies were screened out by text. Finally, 29 studies were subjected to meta-analysis. Discussion While the research on transcranial direct current stimulation continues to develop, the current study highlights methodological trends like studies with stimulation concurrent to task and those using training approaches. Overall effects are summarized by defining study characteristics and cognitive domains, where appropriate.

scholarly journals Modern concepts of the pathogenesis of obesity and new approaches to its correction

2018 ◽  
Vol 15 (2) ◽  
pp. 11-16
Author(s):  
Oksana Viktorovna Logvinova ◽  
Alexandra Georgievna Poydasheva ◽  
Ilya Sergeevich Bakulin ◽  
Olga Viktorovna Lagoda ◽  
Elena Igorevna Kremneva ◽  
...  
Keyword(s):  
Eating Disorders ◽  
Electrical Stimulation ◽  
Transcranial Magnetic Stimulation ◽  
Brain Stimulation ◽  
Magnetic Stimulation ◽  
Cellular Level ◽  
Transcranial Electrical Stimulation ◽  
Food Behavior ◽  
Physiological Mechanisms ◽  
Non Invasive

The present review considers modern concepts of the physiological mechanisms of the formation of food behavior in a norm at several levels, beginning with the cellular level and ending with the level of functional systems. Neuroimaging methods used for both the study of the pathophysiological foundations of eating disorders and for determining the target for neurostimulation techniques are described. Methods of non-invasive brain stimulation such as transcranial magnetic stimulation and transcranial electrical stimulation, the mechanisms of their influence and aspects of safety of application are reviewed, the latest data on the results of studies on the use of the above methods in the therapy of obesity are summarized.

scholarly journals The Effects of Transcranial Electrical Stimulation of the Brain on Sleep: A Systematic Review

2021 ◽  
Vol 12 ◽  
Author(s):  
Clément Dondé ◽  
Jerome Brunelin ◽  
Jean-Arthur Micoulaud-Franchi ◽  
Julia Maruani ◽  
Michel Lejoyeux ◽  
...  
Keyword(s):  
Systematic Review ◽  
Electrical Stimulation ◽  
Clinical Samples ◽  
Transcranial Electrical Stimulation ◽  
Sleep Patterns ◽  
Non Invasive ◽  
Subjective Assessments ◽  
Registration Number ◽  
The Impact ◽  
The Brain

Transcranial Electrical Stimulation (tES) is a promising non-invasive brain modulation tool. Over the past years, there have been several attempts to modulate sleep with tES-based approaches in both the healthy and pathological brains. However, data about the impact on measurable aspects of sleep remain scattered between studies, which prevent us from drawing firm conclusions. We conducted a systematic review of studies that explored the impact of tES on neurophysiological sleep oscillations, sleep patterns measured objectively with polysomnography, and subjective psychometric assessments of sleep in both healthy and clinical samples. We searched four main electronic databases to identify studies until February 2020. Forty studies were selected including 511 healthy participants and 452 patients. tES can modify endogenous brain oscillations during sleep. Results concerning changes in sleep patterns are conflicting, whereas subjective assessments show clear improvements after tES. Possible stimulation-induced mechanisms within specific cortico-subcortical sleep structures and networks are discussed. Although these findings cannot be directly transferred to the clinical practice and sleep-enhancing devices development for healthy populations, they might help to pave the way for future researches in these areas. PROSPERO registration number 178910.

Transcranial Electrical Stimulation in Post-Stroke Cognitive Rehabilitation

2016 ◽  
Vol 21 (1) ◽  
pp. 55-64 ◽  
Author(s):  
Silvia Convento ◽  
Cristina Russo ◽  
Luca Zigiotto ◽  
Nadia Bolognini
Keyword(s):  
Electrical Stimulation ◽  
Cognitive Rehabilitation ◽  
Cognitive Disorders ◽  
Spatial Neglect ◽  
Transcranial Electrical Stimulation ◽  
Clinical Settings ◽  
Post Stroke ◽  
Neuropsychological Disorders ◽  
Current State ◽  
Stimulation Technique

Abstract. Cognitive rehabilitation is an important area of neurological rehabilitation, which aims at the treatment of cognitive disorders due to acquired brain damage of different etiology, including stroke. Although the importance of cognitive rehabilitation for stroke survivors is well recognized, available cognitive treatments for neuropsychological disorders, such as spatial neglect, hemianopia, apraxia, and working memory, are overall still unsatisfactory. The growing body of evidence supporting the potential of the transcranial Electrical Stimulation (tES) as tool for interacting with neuroplasticity in the human brain, in turn for enhancing perceptual and cognitive functions, has obvious implications for the translation of this noninvasive brain stimulation technique into clinical settings, in particular for the development of tES as adjuvant tool for cognitive rehabilitation. The present review aims at presenting the current state of art concerning the use of tES for the improvement of post-stroke visual and cognitive deficits (except for aphasia and memory disorders), showing the therapeutic promises of this technique and offering some suggestions for the design of future clinical trials. Although this line of research is still in infancy, as compared to the progresses made in the last years in other neurorehabilitation domains, current findings appear very encouraging, supporting the development of tES for the treatment of post-stroke cognitive impairments.

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