Understanding the Role of Sensorimotor Beta Oscillations

Barone, Jacopo; Rossiter, Holly E.

doi:10.3389/fnsys.2021.655886

Cited by 123 publications

(103 citation statements)

References 86 publications

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“…An increase in the synchronisation of the beta oscillations during the forward motor imagery might be associated with an integration mechanism between premotor, sensory and somatosensory (including vestibular) processes. This is coherent with studies, which reported that synchronisation in beta oscillations linked to conscious motor processing (real or imagined) engages neural cortical premotor 65 , sensorimotor 66 , 67 and somatosensory activity 68 . Similarities between real motor execution and motor imagery oscillations at pre-motor, sensorimotor and parieto-temporal beta levels suggest that such neural activity is efferent and linked to the organisation of the ongoing movement 69 .…”

Section: Discussionsupporting

confidence: 90%

Mental imagery of whole-body motion along the sagittal-anteroposterior axis

Patel

Beaver

Gruber

et al. 2022

Sci Rep

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Whole-body motor imagery is conceptualised as a mental symbolisation directly and indirectly associated with neural oscillations similar to whole-body motor execution. Motor and somatosensory activity, including vestibular activity, is a typical corticocortical substrate of body motion. Yet, it is not clear how this neural substrate is organised when participants are instructed to imagine moving their body forward or backward along the sagittal-anteroposterior axis. It is the aim of the current study to identify the fingerprint of the neural substrate by recording the cortical activity of 39 participants via a 32 electroencephalography (EEG) device. The participants were instructed to imagine moving their body forward or backward from a first-person perspective. Principal Component Analysis (i.e. PCA) applied to the neural activity of whole-body motor imagery revealed neural interconnections mirroring between forward and backward conditions: beta pre-motor and motor oscillations in the left and right hemisphere overshadowed beta parietal oscillations in forward condition, and beta parietal oscillations in the left and right hemisphere overshadowed beta pre-motor and motor oscillations in backward condition. Although functional significance needs to be discerned, beta pre-motor, motor and somatosensory oscillations might represent specific settings within the corticocortical network and provide meaningful information regarding the neural dynamics of continuous whole-body motion. It was concluded that the evoked multimodal fronto-parietal neural activity would correspond to the neural activity that could be expected if the participants were physically enacting movement of the whole-body in sagittal-anteroposterior plane as they would in their everyday environment.

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Section: Discussionsupporting

confidence: 90%

Mental imagery of whole-body motion along the sagittal-anteroposterior axis

Patel

Beaver

Gruber

et al. 2022

Sci Rep

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“…Consistent with prior studies, we found prominent beta band frequencies at rest in cortex, along with large and sustained beta desynchronizations during voluntary movements [47]. Resting beta power was also observed in STN, although it was considerably smaller in power and present less consistently (Figure 2).…”

Section: Beta Desynchronization Is Greater In Sensorimotor Cortex Tha...supporting

confidence: 91%

Cortical and STN spectral changes during limb movements in PD patients with and without dystonia

Nakhmani

Olson

Irwin

et al. 2022

Preprint

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Background: Dystonia is a prevalent yet under-studied motor feature of Parkinson disease (PD). Although considerable efforts have focused on brain oscillations related to the cardinal symptoms of PD, whether dystonia is associated with specific electrophysiological features is unclear. Objectives: To investigate subcortical and cortical field potentials at rest and during contralateral hand and foot movements in PD patients with versus without dystonia. Methods: We examined the prevalence and somatotopy of dystonia in PD patients undergoing deep brain stimulation (DBS) surgery. We recorded intracranial electrophysiology from sensorimotor cortex and directional DBS electrodes in subthalamic nucleus (STN), during both rest and voluntary contralateral limb movements. We used wavelet transforms and linear mixed models to characterize spectral content in patients with and without dystonia (n=25). Results: Dystonia was highly prevalent at enrollment (61%) and most common in the foot (78%). PD patients with dystonia display greater subthalamic theta and alpha power during movement (p < 0.05) but not at rest. Regardless of dystonia status, cortical recordings display prominent beta desynchronization (13-30 Hz) during movement, whereas STN signals show increases in spectral power at lower frequencies (4-20 Hz), with peaks at 6.0 +/- 3.3 and 4.2 +/- 2.9 Hz during hand and foot movements, respectively (p < 0.03). Conclusions: Whereas cortex was characterized by beta desynchronization during hand and foot movements similarly, STN showed limb-specific low frequency activity which was increased in PD patients with dystonia. These findings may help elucidate why PD-related dystonia is most common in the foot and help guide future closed-loop DBS devices.

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“…Movement-related beta oscillatory event-related desynchronization (ERD) and synchronization (ERS) have been characterized to a great extent in both healthy and clinical populations ( Kilavik et al, 2013 ; Little and Brown, 2014 ; Cao and Hu, 2016 ; Barone and Rossiter, 2021 ). On the other hand, the current knowledge on the functional significance of gamma ERS is more limited and mostly stems from a small number of studies, some with ECoG and intracranial recording in small samples of patients with various neurological problems ( Crone et al, 1998 ; Pfurtscheller et al, 2003 ; Androulidakis et al, 2007 ; Miller et al, 2007 ; Ball et al, 2008 ; Brücke et al, 2008 , 2012 ; Cheyne et al, 2008 ; Tan et al, 2013a , b , 2016 ; Flint et al, 2014 ; Miocinovic et al, 2015 ; Rowland et al, 2015 ; Gunduz et al, 2016 ; Ryun et al, 2017 ; Lofredi et al, 2018 ; Jiang et al, 2020 ), and a very few others with EEG or MEG in healthy subjects ( Muthukumaraswamy, 2010 ; Gaetz et al, 2013 ; Amo et al, 2016 ).…”

Section: Introductionmentioning

confidence: 99%

Modulation of Gamma Spectral Amplitude and Connectivity During Reaching Predicts Peak Velocity and Movement Duration

et al. 2022

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Modulation of gamma oscillations recorded from the human motor cortex and basal ganglia appears to play a key role in movement execution. However, there are still major questions to be answered about the specific role of cortical gamma activity in both the planning and execution of movement features such as the scaling of peak velocity and movement time. In this study, we characterized movement-related gamma oscillatory dynamics and its relationship with kinematic parameters based on 256-channels EEG recordings in 64 healthy subjects while performing fast and uncorrected reaching movements to targets located at three distances. In keeping with previous studies, we found that movement-related gamma synchronization occurred during movement execution. As a new finding, we showed that gamma synchronization occurred also before movement onset, with planning and execution phases involving different gamma peak frequencies and topographies. Importantly, the amplitude of gamma synchronization in both planning and execution increased with target distance and predicted peak velocity and movement time. Additional analysis of phase coherence revealed a gamma-coordinated long-range network involving occipital, frontal and central regions during movement execution that was positively related to kinematic features. This is the first evidence in humans supporting the notion that gamma synchronization amplitude and phase coherence pattern can reliably predict peak velocity amplitude and movement time. Therefore, these findings suggest that cortical gamma oscillations have a crucial role for the selection, implementation and control of the appropriate kinematic parameters of goal-directed reaching movements.

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Understanding the Role of Sensorimotor Beta Oscillations

Cited by 123 publications

References 86 publications

Mental imagery of whole-body motion along the sagittal-anteroposterior axis

Mental imagery of whole-body motion along the sagittal-anteroposterior axis

Cortical and STN spectral changes during limb movements in PD patients with and without dystonia

Modulation of Gamma Spectral Amplitude and Connectivity During Reaching Predicts Peak Velocity and Movement Duration

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