The Impact of Context on EEG Motor Imagery Neurofeedback and Related Motor Domains

Daeglau, Mareike; Zich, Catharina; Kranczioch, Cornelia

doi:10.1007/s40473-021-00233-w

Cited by 3 publications

(2 citation statements)

References 114 publications

(102 reference statements)

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“…While gender was shown not to be predictive of fMRI NF performance in a recent meta-analysis, 51 there has been some evidence in the EEG NF field of effects of gender, 78 and other contextual factors. 79 , 80 on NF performance. Additionally, differences in handedness could play a role in maintenance of NF effects, 25 which should be considered in future studies along with other possible effects on NF learning such as cognitive ability or age.…”

Section: Discussionmentioning

confidence: 99%

Self-modulation of motor cortex activity after stroke: a randomized controlled trial

Sanders

Fleming

Smejka

et al. 2022

Brain

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Real-time functional MRI neurofeedback allows individuals to self-modulate their ongoing brain activity. This may be a useful tool in clinical disorders that are associated with altered brain activity patterns. Motor impairment after stroke has previously been associated with decreased laterality of motor cortex activity. Here we examined whether chronic stroke survivors were able to use real-time fMRI neurofeedback to increase laterality of motor cortex activity and assessed effects on motor performance and on brain structure and function. We carried out a randomized, double-blind, sham-controlled trial (ClinicalTrials.gov: NCT03775915) in which 24 chronic stroke survivors with mild to moderate upper limb impairment experienced three training days of either Real (n = 12) or Sham (n = 12) neurofeedback. Assessments of brain structure, brain function and measures of upper-limb function were carried out before and 1 week after neurofeedback training. Additionally, measures of upper-limb function were repeated 1 month after neurofeedback training. Primary outcome measures were (i) changes in lateralization of motor cortex activity during movements of the stroke-affected hand throughout neurofeedback training days; and (ii) changes in motor performance of the affected limb on the Jebsen Taylor Test (JTT). Stroke survivors were able to use Real neurofeedback to increase laterality of motor cortex activity within (P = 0.019), but not across, training days. There was no group effect on the primary behavioural outcome measure, which was average JTT performance across all subtasks (P = 0.116). Secondary analysis found improvements in the performance of the gross motor subtasks of the JTT in the Real neurofeedback group compared to Sham (P = 0.010). However, there were no improvements on the Action Research Arm Test or the Upper Extremity Fugl–Meyer score (both P > 0.5). Additionally, decreased white-matter asymmetry of the corticospinal tracts was detected 1 week after neurofeedback training (P = 0.008), indicating that the tracts become more similar with Real neurofeedback. Changes in the affected corticospinal tract were positively correlated with participants neurofeedback performance (P = 0.002). Therefore, here we demonstrate that chronic stroke survivors are able to use functional MRI neurofeedback to self-modulate motor cortex activity in comparison to a Sham control, and that training is associated with improvements in gross hand motor performance and with white matter structural changes.

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Section: Discussionmentioning

confidence: 99%

Self-modulation of motor cortex activity after stroke: a randomized controlled trial

Sanders

Fleming

Smejka

et al. 2022

Brain

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“…Although MI-NFB has been suggested to enable the control of brain activity and improve the accuracy of motor imagery, as shown in the above study [48], the effect of MI-NFB varies depending on the conditions. Moreover, the effects of MI-NFB are not consistent in relation to the participant's characteristics [50] and the difficulty of the task [51]. Therefore, improving the accuracy of MI-NFB and evaluating its responsiveness are future research topics.…”

Section: Motor Imagery-based Neurofeedbackmentioning

confidence: 99%

Motor Imagery-based Neurofeedback in Physiotherapy Practice

Sawai,

Fujikawa,

Yamamoto

et al. 2024

Physical Therapy - Towards Evidence-Based Practice

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Neurofeedback (NFB) is a closed-loop technique in which the patient receives feedback on brain activity to encourage voluntary control of brain activity. NFB promotes neuroplasticity and changes the brain functionally and structurally. Motor imagery-based NFB (MI-NFB) can improve motor imagery ability by providing feedback on brain activity during motor imagery, thereby showing effectiveness in performance and motor learning. Furthermore, the effects of MI-NFB are further enhanced when it is combined with noninvasive brain stimulation and motor exercise. Therefore, MI-NFB is used in the physiotherapy of patients with neurological diseases, such as stroke and Parkinson disease, as well as children with attention deficit-hyperactivity disorder and elderly people. This chapter reviews MI-NFB in physiotherapy practice, thus contributing to the development of effective evidence-based physiotherapy.

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Event-related desynchronization in motor imagery with EEG neurofeedback in the context of declarative interference and sleep

Daeglau

Zich

Welzel

et al. 2021

Neuroimage: Reports

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The Impact of Context on EEG Motor Imagery Neurofeedback and Related Motor Domains

Cited by 3 publications

References 114 publications

Self-modulation of motor cortex activity after stroke: a randomized controlled trial

Self-modulation of motor cortex activity after stroke: a randomized controlled trial

Motor Imagery-based Neurofeedback in Physiotherapy Practice

Event-related desynchronization in motor imagery with EEG neurofeedback in the context of declarative interference and sleep

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