| Title |
Phasic increases in cortical beta activity are associated with alterations in sensory processing in the human
|
|---|---|
| Published in |
Experimental Brain Research, September 2006
|
| DOI | 10.1007/s00221-006-0655-8 |
| Pubmed ID | |
| Authors |
Elodie Lalo, Thomas Gilbertson, Louise Doyle, Vincenzo Di Lazzaro, Beatrice Cioni, Peter Brown |
| Abstract |
Oscillatory activity in the beta (beta)-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 beta-oscillations are primarily motor or sensorimotor in function remains unclear. We tested the hypothesis that cortical beta-activity is associated with an up-regulation of sensory inputs that may be relevant to the organization of the motor response. We recorded cortical somatosensory potentials (SEPs) elicited by electrical stimuli to the median nerve at the wrist triggered by increases of electroencephalographic (EEG) beta-activity in the contralateral fronto-central EEG and compared these to SEPs presented at random intervals. The involvement of motor cortex in the triggering EEG activity was confirmed by a simultaneous elevation of cortico-spinal synchrony in the beta-band. The negative cortical evoked potential peaking at 20 ms and the positive evoked potential peaking at 30 ms after median nerve shocks were increased in size when elicited after phasic increases in beta-activity. The functional coupling of sensory and motor cortices in the beta-band was confirmed in recordings of electrocorticographic activity in two patients with chronic pain syndromes, suggesting a means by which beta-activity may simultaneously influence cortical sensory processing, motor output and promote sensory-motor interaction. |
Mendeley readers
The data shown below were compiled from readership statistics for 165 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 5 | 3% |
| United States | 2 | 1% |
| Canada | 2 | 1% |
| Netherlands | 1 | <1% |
| France | 1 | <1% |
| Brazil | 1 | <1% |
| Turkey | 1 | <1% |
| Switzerland | 1 | <1% |
| Australia | 1 | <1% |
| Other | 0 | 0% |
| Unknown | 150 | 91% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 36 | 22% |
| Student > Ph. D. Student | 28 | 17% |
| Student > Bachelor | 15 | 9% |
| Student > Master | 14 | 8% |
| Professor | 11 | 7% |
| Other | 38 | 23% |
| Unknown | 23 | 14% |
| Readers by discipline | Count | As % |
|---|---|---|
| Neuroscience | 33 | 20% |
| Medicine and Dentistry | 27 | 16% |
| Agricultural and Biological Sciences | 20 | 12% |
| Engineering | 16 | 10% |
| Psychology | 14 | 8% |
| Other | 16 | 10% |
| Unknown | 39 | 24% |
Attention Score in Context
This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 29 January 2019.
All research outputs
#7,453,350
of 22,786,087 outputs
Outputs from Experimental Brain Research
#900
of 3,224 outputs
Outputs of similar age
#23,231
of 67,037 outputs
Outputs of similar age from Experimental Brain Research
#3
of 16 outputs
Altmetric has tracked 22,786,087 research outputs across all sources so far. This one is in the 44th percentile – i.e., 44% of other outputs scored the same or lower than it.
So far Altmetric has tracked 3,224 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.0. This one has gotten more attention than average, scoring higher than 55% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 67,037 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 15th percentile – i.e., 15% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 16 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 56% of its contemporaries.