Preparatory band specific premotor cortical activity differentiates upper and lower extremity movement

Wheaton, Lewis A.; Carpenter, Mackenzie; Mizelle, J. C.; Forrester, Larry W.

doi:10.1007/s00221-007-1160-4

Cited by 19 publications

(14 citation statements)

References 30 publications

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“…According to previous evidence [Klimesch, 1996[Klimesch, , 1999Klimesch et al, 1998], it can be speculated that the present high-frequency alpha ERD/ ERS reflects task-specific processes in right posterior parietal cortex, which is a crucial region for upright standing, visuo-spatial information processing, and spatial attention to visual targets [Corbetta et al, 2005;Del Percio et al, 2007;Driver and Vuilleumier, 2001;Vallar et al, 1988]. The same may be true for high-frequency alpha ERD/ERS in the hand region of left sensorimotor central cortex, which is dominant for fine and skillful sensorimotor control of right hand in right-handed subjects [Stancàk et al, 2000;Wheaton et al, 2008].…”

Section: Alpha Erd/ers Fits the Neural Efficiency Hypothesismentioning

confidence: 94%

Visuo‐attentional and sensorimotor alpha rhythms are related to visuo‐motor performance in athletes

Percio

Babiloni

Bertollo

et al. 2009

Human Brain Mapping

127

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This study tested the two following hypotheses: (i) compared with non-athletes, elite athletes are characterized by a reduced cortical activation during the preparation of precise visuo-motor performance; (ii) in elite athletes, an optimal visuo-motor performance is related to a low cortical activation. To this aim, electroencephalographic (EEG; 56 channels; Be Plus EB-Neuro) data were recorded in 18 right-handed elite air pistol shooters and 10 right-handed non-athletes. All subjects performed 120 shots. The EEG data were spatially enhanced by surface Laplacian estimation. With reference to a baseline period, power decrease/increase of alpha rhythms during the preshot period indexed the cortical activation/deactivation (event-related desynchronization/synchronization, ERD/ERS). Regarding the hypothesis (i), low- (about 8-10 Hz) and high-frequency (about 10-12 Hz) alpha ERD was lower in amplitude in the elite athletes than in the non-athletes over the whole scalp. Regarding the hypothesis (ii), the elite athletes showed high-frequency alpha ERS (about 10-12 Hz) larger in amplitude for high score shots (50%) than for low score shots; this was true in right parietal and left central areas. A control analysis confirmed these results with another indicator of cortical activation (beta ERD, about 20 Hz). The control analysis also showed that the amplitude reduction of alpha ERD for the high compared with low score shots was not observed in the non-athletes. The present findings globally suggest that in elite athletes (experts), visuo-motor performance is related to a global decrease of cortical activity, as a possible index of spatially selective cortical processes ("neural efficiency").

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Section: Alpha Erd/ers Fits the Neural Efficiency Hypothesismentioning

confidence: 94%

Visuo‐attentional and sensorimotor alpha rhythms are related to visuo‐motor performance in athletes

Percio

Babiloni

Bertollo

et al. 2009

Human Brain Mapping

127

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“…Once again these insights have primarily been derived from finger or hand movements, as only a limited number of MEG/EEG investigations have been performed for self-paced leg motor actions. The outcomes from these investigations have shown that a similar beta ERD can be seen in the electrodes that overlie the rolandic region (e.g., Cz; Neuper and Pfurtscheller 1996, 2001; Wheaton et al 2008), but these studies did not identify the anatomical correlates. Thus, despite these initial insights, we still have an incomplete understanding of the spatial location and inherent dynamics of the beta oscillations that serve leg motor actions.…”

Section: Introductionmentioning

confidence: 98%

Developmental Trajectory of Beta Cortical Oscillatory Activity During a Knee Motor Task

et al. 2016

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There is currently a void in the scientific literature on the cortical beta oscillatory activity that is associated with the production of leg motor actions. In addition, we have limited data on how these cortical oscillations may progressively change as a function of development. This study began to fill this vast knowledge gap by using high-density magnetoencephalography to quantify the beta cortical oscillatory activity over a cross-section of typically developing children as they performed an isometric knee target matching task. Advanced beamforming methods were used to identify the spatiotemporal changes in beta oscillatory activity during the motor planning and motor action time frames. Our results showed that a widespread beta event-related desynchronization (ERD) was present across the pre/postcentral gyri, supplementary motor area, and the parietal cortices during the motor planning stage. The strength of this beta ERD sharply diminished across this fronto-parietal network as the children initiated the isometric force needed to match the target. Rank order correlations indicated that the older children were more likely to initiate their force production sooner, took less time to match the targets, and tended to have a weaker beta ERD during the motor planning stage. Lastly, we determined that there was a relationship between the child’s age and the strength of the beta ERD within the parietal cortices during isometric force production. Altogether our results suggest that there are notable maturational changes during childhood and adolescence in beta cortical oscillatory activity that are associated with the planning and execution of leg motor actions.

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“…Specifically, when preceding voluntary foot or hand movements, ERD within the upper alpha frequencies isolates to the central-parietal electrodes somatotopically relevant to the movement (i.e., medial versus lateral electrodes), and is thought to represent enhanced cortical excitability or readiness for an impending movement (Pfurtscheller 2000). The upper beta ERD, however, localizes at mesial central electrodes, thought to represent changes in synchronization of circuits involving the supplementary motor area (Fogelson et al 2006; Wheaton et al 2008). Further, the upper alpha and beta bands appear to represent synchrony of distinct circuits among the cortex, basal ganglia, and thalamus (Fogelson et al 2006; Klostermann et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Effects of magnitude and magnitude predictability of postural perturbations on preparatory cortical activity in older adults with and without Parkinson’s disease

2012

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The goal of this study was to identify whether impaired cortical preparation may relate to impaired scaling of postural responses of people with Parkinson’s disease (PD). We hypothesized that impaired scaling of postural responses in participants with PD would be associated with impaired set-dependent cortical activity in preparation for perturbations of predictable magnitudes. Participants performed postural responses to backward surface translations. We examined the effects of perturbation magnitude (predictable small vs. predictable large) and predictability of magnitude (predictable vs. unpredictable-in-magnitude) on postural responses (center-of-pressure (CoP) displacements) and on preparatory electroencephalographic (EEG) measures of contingent negative variation (CNV) and alpha and beta event-related desynchronization (ERD). Our results showed that unpredictability of perturbation magnitude, but not the magnitude of the perturbation itself, was associated with increased CNV amplitude at the CZ electrode in both groups. While control participants scaled their postural responses to the predicted magnitude of the perturbation, their condition-related changes in CoP displacements were not correlated with condition-related changes in EEG preparatory activity (CNV or ERD). In contrast, participants with PD did not scale their postural responses to the predicted magnitude of the perturbation, but they did demonstrate greater beta ERD in the condition of predictably small-magnitude perturbations and greater beta ERD than the control participants at the CZ electrode. In addition, increased beta ERD in PD was associated with decreased adaptability of postural responses, suggesting that preparatory cortical activity may have a more direct influence on postural response scaling for people with PD than for control participants.

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Preparatory band specific premotor cortical activity differentiates upper and lower extremity movement

Cited by 19 publications

References 30 publications

Visuo‐attentional and sensorimotor alpha rhythms are related to visuo‐motor performance in athletes

Visuo‐attentional and sensorimotor alpha rhythms are related to visuo‐motor performance in athletes

Developmental Trajectory of Beta Cortical Oscillatory Activity During a Knee Motor Task

Effects of magnitude and magnitude predictability of postural perturbations on preparatory cortical activity in older adults with and without Parkinson’s disease

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