Phasic increases in cortical beta activity are associated with alterations in sensory processing in the human

@article{Lalo2006PhasicII,
  title={Phasic increases in cortical beta activity are associated with alterations in sensory processing in the human},
  author={Elodie Lalo and Thomas Gilbertson and Louise M. F. Doyle and V. Lazzaro and Beatrice Cioni and Peter Brown},
  journal={Experimental Brain Research},
  year={2006},
  volume={177},
  pages={137-145}
}
Oscillatory activity in the beta (β)-frequency band (13–35 Hz) can be recorded over the sensorimotor cortex in humans. It is coherent with electromyographic activity (EMG) during tonic contraction, but whether the cortical β-oscillations are primarily motor or sensorimotor in function remains unclear. We tested the hypothesis that cortical β-activity is associated with an up-regulation of sensory inputs that may be relevant to the organization of the motor response. We recorded cortical… 
Anticipatory changes in beta synchrony in the human corticospinal system and associated improvements in task performance
TLDR
The results suggest that the beta state is modulated in a task‐relevant way with accompanying behavioural consequences, and this up‐regulation of beta synchrony is associated with improved behavioural performance.
Somatosensory Demands Modulate Muscular Beta Oscillations, Independent of Motor Demands
TLDR
It is shown in humans that somatosensory demands, both in anticipation and during the processing of tactile stimuli, also modulate beta oscillations throughout this widely distributed somatomotor beta network and suggests that, at least in healthy subjects, somatosensation and action should not be considered as separable processes, not even at the level of the muscles.
Primary and secondary somatosensory cortex responses to anticipation and pain: a magnetoencephalography study
TLDR
Objective evidence of functional heterogeneity within SI and functional segregation between SI and SII is provided, and it is suggested that the temporal and frequency dynamics within cortical regions may offer valuable insights into pain processing is suggested.
Corrective movements in response to displacements in visual feedback are more effective during periods of 13–35 Hz oscillatory synchrony in the human corticospinal system
TLDR
The results suggest that phasic elevations of beta activity in the corticospinal motor system are associated with an increase in the gain of the motor response to visual feedback during a tonic hold task.
The ups and downs of beta oscillations in sensorimotor cortex
Periodicity and Evoked Responses in Motor Cortex
TLDR
It is found that the appearance of each new target evokes precisely timed spiking in MI at a characteristic latency but that the exact timing of this response varies depending on its relationship to the phase of the ongoing beta range oscillation.
Cerebral processing and cortical plasticity during tonic and phasic painful stimulation
TLDR
Significant findings in EEG frequency power analysis provided evidence for different pain-EEG relationship between high alpha vs. low alpha groups (Hα vs. Lα) and males vs. females.
Motor cortical beta transients delay movement initiation and track errors
TLDR
It is shown that beta activity on individual trials is dominated by high amplitude, short lasting bursts, and movement-related beta bursts coordinate the retrieval and updating of movement goals in the pre- and post-movement periods, respectively.
Human motor cortical beta bursts relate to movement planning and response errors
Motor cortical beta activity (13–30 Hz) is a hallmark signature of healthy and pathological movement, but its behavioural relevance remains unclear. Using high-precision magnetoencephalography (MEG),
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 42 REFERENCES
Cortical correlate of the Piper rhythm in humans.
TLDR
The Piper rhythm in muscle may be driven by a comparable oscillatory activity in the contralateral motor cortex, which can be picked up in several types of movement and seems distinct from the 20- to 30-Hz rhythmicity recorded during weak sustained contractions.
Synchronization between motor cortex and spinal motoneuronal pool during the performance of a maintained motor task in man.
TLDR
The results demonstrate that synchronized cortical activity contributing to MEG activity within the beta range of frequencies during maintained voluntary contractions is coupled to motor output at frequencies of motor‐ unit activity associated with motor‐unit synchronization.
EEG slow (approximately 1 Hz) waves are associated with nonstationarity of thalamo-cortical sensory processing in the sleeping human.
TLDR
The present findings demonstrate that thalamo-cortical processing of sensory information is not stationary in the very short period during natural SWS, and appears to be centrally generated and specifically related to the evolution of the spontaneous oscillatory pattern.
EEG Slow (∼1 Hz) Waves Are Associated With Nonstationarity of Thalamo-Cortical Sensory Processing in the Sleeping Human
Intracellular studies reveal that, during slow wave sleep (SWS), the entire cortical network can swing rhythmically between extremely different microstates, ranging from wakefulness-like network
Coherent cortical and muscle discharge in cortical myoclonus.
TLDR
Spectral analysis of surface bipolar EEG and EMG activity was performed in eight patients with cortical myoclonus to provide clear evidence of a cortical drive synchronizing muscle discharge over a broad range of frequencies in patients with cortex myOClonus.
Existing Motor State Is Favored at the Expense of New Movement during 13-35 Hz Oscillatory Synchrony in the Human Corticospinal System
TLDR
It is demonstrated that movements are slowed and transcortical responses to stretch are potentiated during periods of elevated β-band cortical synchrony, suggesting that physiological periods of β synchrony are associated with a cortical state in which postural set is reinforced, but the speed of new movements impaired.
Coherent 25- to 35-Hz oscillations in the sensorimotor cortex of awake behaving monkeys.
  • V. Murthy, E. Fetz
  • Physics, Medicine
    Proceedings of the National Academy of Sciences of the United States of America
  • 1992
TLDR
Synchronous 25- to 35-Hz oscillations were observed in local field potentials and unit activity in sensorimotor cortex of awake rhesus monkeys, suggesting that such oscillations may facilitate interactions between cells during exploratory and manipulative movements, requiring attention to sensorsimotor integration.
An oscillatory hierarchy controlling neuronal excitability and stimulus processing in the auditory cortex.
TLDR
It is proposed that the hierarchical organization of ambient oscillatory activity allows auditory cortex to structure its temporal activity pattern so as to optimize the processing of rhythmic inputs.
Coherent oscillations in monkey motor cortex and hand muscle EMG show task‐dependent modulation
TLDR
It is concluded that oscillations in the range 20–30 Hz are present in monkey motor cortex, are coherent between spatially separated cortical sites, and encompass the pyramidal tract output neurones.
...
1
2
3
4
5
...