Event-Related Synchronization and Desynchronization of High-Frequency Electroencephalographic Activity during a Visual Go/No-Go Paradigm

Iijima, Makoto; Mase, Ryuzo; Osawa, Mikio; Shimizu, Satoru; Uchiyama, Shinichiro

doi:10.1159/000363341

Cited by 8 publications

(5 citation statements)

References 32 publications

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“…Power in the gamma band (33-60 Hz) reflects active engagement (i.e., in feature integration, attention, and movement preparation, depending on the cortical area) [119,120]. In controls, changes in gamma band power for activation and inhibition networks [93,[121][122][123][124]. The pattern of gamma band activity was similar to the peripheral attention network described by Corbetta and colleagues [125], and appeared to be relatively intact in PD.…”

Section: Frequency Specific Cortical Oscillatory Powersupporting

confidence: 52%

Cortical oscillatory dysfunction in Parkinson disease during movement activation and inhibition

et al. 2022

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Response activation and inhibition are functions fundamental to executive control that are disrupted in Parkinson disease (PD). We used magnetoencephalography to examine event related changes in oscillatory power amplitude, peak latency and frequency in cortical networks subserving these functions and identified abnormalities associated with PD. Participants (N = 18 PD, 18 control) performed a cue/target task that required initiation of an un-cued movement (activation) or inhibition of a cued movement. Reaction times were variable but similar across groups. Task related responses in gamma, alpha, and beta power were found across cortical networks including motor cortex, supplementary and pre- supplementary motor cortex, posterior parietal cortex, prefrontal cortex and anterior cingulate. PD-related changes in power and latency were noted most frequently in the beta band, however, abnormal power and delayed peak latency in the alpha band in the pre-supplementary motor area was suggestive of a compensatory mechanism. PD peak power was delayed in pre-supplementary motor area, motor cortex, and medial frontal gyrus only for activation, which is consistent with deficits in un-cued (as opposed to cued) movement initiation characteristic of PD.

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Section: Frequency Specific Cortical Oscillatory Powersupporting

confidence: 52%

Cortical oscillatory dysfunction in Parkinson disease during movement activation and inhibition

et al. 2022

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“…Our finding that tracing performance was still degraded by the sensory incongruence at the end of the experimental session argues in favor of continuous processes to solve the spatial problem and is therefore consistent with the observed beta and gamma ERDs in the right frontal cortex. The gamma ERD revealed in the left frontal region could have, in turn, contributed to inhibit motor actions that are normally appropriate in the context of non-biased visual feedback (Iijima et al, 2015).…”

Section: Changes Of Neural Oscillations In Other Cortical Regionsmentioning

confidence: 98%

On the neural basis of sensory weighting: Alpha, beta and gamma modulations during complex movements

et al. 2017

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. On the neural basis of sensory weighting: Alpha, beta and gamma modulations during complex movements. NeuroImage, Elsevier, 2017, 150, pp.200 -212. 10.1016/j.neuroimage.2017 Previous studies have revealed that visual and somatosensory information is processed as a function of its relevance during movement execution. We thus performed spectral decompositions of ongoing neural activities within the somatosensory and visual areas while human participants performed a complex visuomotor task. In this task, participants followed the outline of irregular polygons with a pen-controlled cursor. At unpredictable times, the motion of the cursor deviated 120°with respect to the actual pen position creating an incongruence between visual and somatosensory inputs, thus increasing the importance of visual feedback to control the movement as suggested in previous studies. We found that alpha and beta power significantly decreased in the visual cortex during sensory incongruence when compared to unperturbed conditions. This result is in line with an increased gain of visual inputs during sensory incongruence. In parallel, we also found a simultaneous decrease of gamma and beta power in sensorimotor areas which has not been reported previously. The gamma desynchronization suggests a reduced integration of somatosensory inputs for controlling movements with sensory incongruence while beta ERD could be more specifically linked to sensorimotor adaptation processes.

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“…Our results showed that gamma-mediated connectivity was increased when participants were exposed to a Go cue. In animals, the relationship between gamma power and movement preparation has received support from studies using intracellular recordings 37 , 38 , suggesting a specific role of high-frequency gamma activity during motor inhibition/execution (for a review see Wardak 2011). Alternatively, it could be hypothesized that the observed changes in gamma activity may reflect a re-balance of the theta/gamma coupling in response to the changes in theta activity, given that these frequencies naturally occur in the same brain regions and interact with each other 40 .…”

Section: Discussionmentioning

confidence: 99%

Real-time cortical dynamics during motor inhibition

Casula,

Pezzopane,

Roncaioli

et al. 2024

Sci Rep

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The inhibition of action is a fundamental executive mechanism of human behaviour that involve a complex neural network. In spite of the progresses made so far, many questions regarding the brain dynamics occurring during action inhibition are still unsolved. Here, we used a novel approach optimized to investigate real-time effective brain dynamics, which combines transcranial magnetic stimulation (TMS) with simultaneous electroencephalographic (EEG) recordings. 22 healthy volunteers performed a motor Go/NoGo task during TMS of the hand-hotspot of the primary motor cortex (M1) and whole-scalp EEG recordings. We reconstructed source-based real-time spatiotemporal dynamics of cortical activity and cortico-cortical connectivity throughout the task. Our results showed a task-dependent bi-directional change in theta/gamma supplementary motor cortex (SMA) and M1 connectivity that, when participants were instructed to inhibit their response, resulted in an increase of a specific TMS-evoked EEG potential (N100), likely due to a GABA-mediated inhibition. Interestingly, these changes were linearly related to reaction times, when participants were asked to produce a motor response. In addition, TMS perturbation revealed a task-dependent long-lasting modulation of SMA–M1 natural frequencies, i.e. alpha/beta activity. Some of these results are shared by animal models and shed new light on the physiological mechanisms of motor inhibition in humans.

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Event-Related Synchronization and Desynchronization of High-Frequency Electroencephalographic Activity during a Visual Go/No-Go Paradigm

Cited by 8 publications

References 32 publications

Cortical oscillatory dysfunction in Parkinson disease during movement activation and inhibition

Cortical oscillatory dysfunction in Parkinson disease during movement activation and inhibition

On the neural basis of sensory weighting: Alpha, beta and gamma modulations during complex movements

Real-time cortical dynamics during motor inhibition

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