Brain oscillatory correlates of visuomotor adaptive learning

Struber, Lucas; Baumont, Marie; Barraud, Pierre‐Alain; Nougier, Vincent; Cignetti, Fabien

doi:10.1016/j.neuroimage.2021.118645

Cited by 7 publications

(7 citation statements)

References 66 publications

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“… 51 Particularly in motor adaptation learning, the increased gamma band power modulation of frontal and motor brain regions has been reported during early learning, a time period in which the adaptation performance increases rapidly. 52 , 53 However, these reports were limited to trial-by-trial changes during adaptation learning. Our results now identified millisecond-by-millisecond theta-gamma oscillatory coupling that occurred during continuous interaction only in the case when re-calibration of a deployed strategy to control the cursor was required to accomplish the task and co-varies with magnitude of the required adjustment.…”

Section: Discussionmentioning

confidence: 99%

EEG error-related potentials encode magnitude of errors and individual perceptual thresholds

Iwane¹,

Sobolewski²,

Chavarriaga³

et al. 2023

iScience

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Section: Discussionmentioning

confidence: 99%

EEG error-related potentials encode magnitude of errors and individual perceptual thresholds

Iwane¹,

Sobolewski²,

Chavarriaga³

et al. 2023

iScience

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“…Relaxation time was found to hold a positive association with β band connectivity within the lesioned hemisphere during grip execution ( Figure 3 B), supporting previous findings suggesting the high prominence of β band rhythms during sensorimotor activity [ 67 ] and motor learning [ 24 , 68 ]. Relaxation time may be considered a measure of feedback control [ 69 ], reflecting the ability for one to rapidly cease muscular contractions of the intrinsic and extrinsic muscles of the paretic hand and forearm, respectively, even in the presence of excessive muscular tone after stroke [ 30 , 70 , 71 ]. The current results indicate that higher connectivity is associated with longer relaxation time durations with an impaired ability to quickly terminate a muscle contraction (i.e., worse performance).…”

Section: Discussionmentioning

confidence: 99%

Associating Functional Neural Connectivity and Specific Aspects of Sensorimotor Control in Chronic Stroke

Baker

Schranz

Seo

2023

Sensors

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Hand sensorimotor deficits often result from stroke, limiting the ability to perform daily living activities. Sensorimotor deficits are heterogeneous among stroke survivors. Previous work suggests a cause of hand deficits is altered neural connectivity. However, the relationships between neural connectivity and specific aspects of sensorimotor control have seldom been explored. Understanding these relationships is important for developing personalized rehabilitation strategies to improve individual patients’ specific sensorimotor deficits and, thus, rehabilitation outcomes. Here, we investigated the hypothesis that specific aspects of sensorimotor control will be associated with distinct neural connectivity in chronic stroke survivors. Twelve chronic stroke survivors performed a paretic hand grip-and-relax task while EEG was collected. Four aspects of hand sensorimotor grip control were extracted, including reaction time, relaxation time, force magnitude control, and force direction control. EEG source connectivity in the bilateral sensorimotor regions was calculated in α and β frequency bands during grip preparation and execution. Each of the four hand grip measures was significantly associated with a distinct connectivity measure. These results support further investigations into functional neural connectivity signatures that explain various aspects of sensorimotor control, to assist the development of personalized rehabilitation that targets the specific brain networks responsible for the individuals’ distinct sensorimotor deficits.

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“…Once the data are cleaned according to the abovementioned procedures, we will divide the data according to each movement segment (reach, manipulate, withdraw). An additional segment of interest is the pre-movement segment, that corresponds to 2000 ms before the GO signal and 1000 ms after (to include the first part of motion) [ 57 ]. The EEG and behavioral data will be synchronized post-hoc using timestamps.…”

Section: Discussionmentioning

confidence: 99%

Stereoptic serious games as a visual rehabilitation tool for individuals with a residual amblyopia (AMBER trial): a protocol for a crossover randomized controlled trial

et al. 2023

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Background Amblyopia is the most common developmental vision disorder in children. The initial treatment consists of refractive correction. When insufficient, occlusion therapy may further improve visual acuity. However, the challenges and compliance issues associated with occlusion therapy may result in treatment failure and residual amblyopia. Virtual reality (VR) games developed to improve visual function have shown positive preliminary results. The aim of this study is to determine the efficacy of these games to improve vision, attention, and motor skills in patients with residual amblyopia and identify brain-related changes. We hypothesize that a VR-based training with the suggested ingredients (3D cues and rich feedback), combined with increasing the difficulty level and the use of various games in a home-based environment is crucial for treatment efficacy of vision recovery, and may be particularly effective in children. Methods The AMBER study is a randomized, cross-over, controlled trial designed to assess the effect of binocular stimulation (VR-based stereoptic serious games) in individuals with residual amblyopia (n = 30, 6–35 years of age), compared to refractive correction on vision, selective attention and motor control skills. Additionally, they will be compared to a control group of age-matched healthy individuals (n = 30) to account for the unique benefit of VR-based serious games. All participants will play serious games 30 min per day, 5 days per week, for 8 weeks. The games are delivered with the Vivid Vision Home software. The amblyopic cohort will receive both treatments in a randomized order according to the type of amblyopia, while the control group will only receive the VR-based stereoscopic serious games. The primary outcome is visual acuity in the amblyopic eye. Secondary outcomes include stereoacuity, functional vision, cortical visual responses, selective attention, and motor control. The outcomes will be measured before and after each treatment with 8-week follow-up. Discussion The VR-based games used in this study have been conceived to deliver binocular visual stimulation tailored to the individual visual needs of the patient, which will potentially result in improved basic and functional vision skills as well as visual attention and motor control skills. Trial registration This protocol is registered on ClinicalTrials.gov (identifier: NCT05114252) and in the Swiss National Clinical Trials Portal (identifier: SNCTP000005024).

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Brain oscillatory correlates of visuomotor adaptive learning

Cited by 7 publications

References 66 publications

EEG error-related potentials encode magnitude of errors and individual perceptual thresholds

EEG error-related potentials encode magnitude of errors and individual perceptual thresholds

Associating Functional Neural Connectivity and Specific Aspects of Sensorimotor Control in Chronic Stroke

Stereoptic serious games as a visual rehabilitation tool for individuals with a residual amblyopia (AMBER trial): a protocol for a crossover randomized controlled trial

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