نتایج جستجو برای: sensorimotor rhythm smr

تعداد نتایج: 46492  

Journal: :Vojnosanitetski Pregled 2023

Background/Aim. Neurofeedback (NFB) training of sensorimotor rhythm (SMR) contributes to improving cognitive performance and increasing attention. SMR power is increased when a person focused task-oriented. The shorter reaction time (RT) the P300 auditory evoked potentials (AEPs) associated with better Hence, increase in after NFB should decrease RT task. aim study was examine ability healthy i...

2016
Johanna L. Reichert Silvia E. Kober Daniela Schweiger Peter Grieshofer Christa Neuper Guilherme Wood

INTRODUCTION Neurofeedback training aims at learning self-regulation of brain activity underlying cognitive, emotional or physiological functions. Despite of promising investigations on neurofeedback as a tool for cognitive rehabilitation in neurological diseases, such as after stroke, there is still a lack of research on feasibility and efficiency of neurofeedback in this field. METHODS The ...

2014
Michiel Kleinnijenhuis Martijn Arns Desirée Spronk Rien Breteler Jacques Duysens

Introduction. Operant conditioning of one’s slow cortical potential (SCP) or sensorimotor rhythm (SMR) can be used to control epilepsy or to manipulate external devices, as applied in BCI (Brain-Computer Interface). A commonly accepted view that both SCP and SMR are reflections of central arousal suggests a functional relationship between SCP and SMR networks. Method. The operant conditioning o...

Journal: :Journal of neural engineering 2015
Dennis J McFarland William A Sarnacki Jonathan R Wolpaw

OBJECTIVE Brain-computer interface (BCI) technology might contribute to rehabilitation of motor function. This speculation is based on the premise that modifying the electroencephalographic (EEG) activity will modify behavior, a proposition for which there is limited empirical data. The present study asked whether learned modulation of pre-movement sensorimotor rhythm (SMR) activity can affect ...

Journal: :International journal of psychophysiology : official journal of the International Organization of Psychophysiology 2003
David Vernon Tobias Egner Nick Cooper Theresa Compton Claire Neilands Amna Sheri John Gruzelier

The use of neurofeedback as an operant conditioning paradigm has disclosed that participants are able to gain some control over particular aspects of their electroencephalogram (EEG). Based on the association between theta activity (4-7 Hz) and working memory performance, and sensorimotor rhythm (SMR) activity (12-15 Hz) and attentional processing, we investigated the possibility that training ...

2014
Niels Birbaumer

BMIs using EEG or ECoG in the complete locked in state (CLIS) were largely unsucessessful; no proven case learning to communicate with a BMI is documented. We present the first case of a CLIS patient in advanced ALS who learned reliable yes-no communication with a BMI using blood oxygenation measure with NIRS after months of random performance with an EEG-BMI. Reasons for these results are disc...

Journal: :International journal of psychophysiology : official journal of the International Organization of Psychophysiology 1988
C A Tozzo L F Elfner J G May

Research utilizing sensorimotor rhythm (SMR) biofeedback with epileptics suggests that it is useful in decreasing seizures. Subjects were 6 young adults with a diagnosis of epilepsy of at least two years who had been unable to control their seizures with different regimens of anticonvulsant medications. Subjects ranged from severely mentally handicapped to above average functioning. Seizure typ...

2017
Manuel Schabus

We agree that, strictly speaking, the results of our study (Schabus et al., 2017) do not allow generalizing the negative findings reported in primary insomnia to other NFT applications. Yet, what is disturbing is the fact that even misperception insomniacs (i.e. participants without any objectively quantifiable sleep problems) show unaltered EEG activity [in the same 12–15 Hz range; sensorimoto...

2017
Bryan S. Baxter Bradley J. Edelman Abbas Sohrabpour Bin He

Transcranial direct current stimulation (tDCS) has been shown to affect motor and cognitive task performance and learning when applied to brain areas involved in the task. Targeted stimulation has also been found to alter connectivity within the stimulated hemisphere during rest. However, the connectivity effect of the interaction of endogenous task specific activity and targeted stimulation is...

Journal: :NeuroImage 2011
Moritz Grosse-Wentrup Bernhard Schölkopf N. Jeremy Hill

Gamma oscillations of the electromagnetic field of the brain are known to be involved in a variety of cognitive processes, and are believed to be fundamental for information processing within the brain. While gamma oscillations have been shown to be correlated with brain rhythms at different frequencies, to date no empirical evidence has been presented that supports a causal influence of gamma ...

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