scholarly journals Co-Increasing Neuronal Noise and Beta Power in the Developing Brain

2019 ◽  
Author(s):  
Wei He ◽  
Thomas Donoghue ◽  
Paul F Sowman ◽  
Robert A Seymour ◽  
Jon Brock ◽  
...  
Keyword(s):  
Childhood Development ◽  
Beta Band ◽  
Neuronal Oscillations ◽  
Age Related ◽  
Beta Power ◽  
Oscillatory Power ◽  
Aperiodic Component ◽  
Periodic Components ◽  
Aperiodic Signal ◽  
Age Related Changes

ABSTRACTAccumulating evidence across species indicates that brain oscillations are superimposed upon an aperiodic 1/f - like power spectrum. Maturational changes in neuronal oscillations have not been assessed in tandem with this underlying aperiodic spectrum. The current study uncovers co-maturation of the aperiodic component alongside the periodic components (oscillations) in spontaneous magnetoencephalography (MEG) data. Beamformer-reconstructed MEG time-series allowed a direct comparison of power in the source domain between 24 children (8.0 ± 2.5 years, 17 males) and 24 adults (40.6 ± 17.4 years, 16 males). Our results suggest that the redistribution of oscillatory power from lower to higher frequencies that is observed in childhood does not hold once the age-related changes in the aperiodic signal are controlled for. When estimating both the periodic and aperiodic components, we found that power increases with age in the beta band only, and that the 1/f signal is flattened in adults compared to children. These results suggest a pattern of co-maturing beta oscillatory power with the aperiodic 1/f signal in typical childhood development.

scholarly journals Beat-induced fluctuations in auditory cortical beta-band activity: using EEG to measure age-related changes

2014 ◽  
Vol 5 ◽  
Author(s):  
Laura K. Cirelli ◽  
Dan Bosnyak ◽  
Fiona C. Manning ◽  
Christina Spinelli ◽  
Céline Marie ◽  
...  
Keyword(s):  
Beta Band ◽  
Age Related ◽  
Band Activity ◽  
Age Related Changes

scholarly journals Beta band oscillations in motor cortex reflect neural population signals that delay movement onset

eLife ◽  
2017 ◽  
Vol 6 ◽  
Author(s):  
Preeya Khanna ◽  
Jose M Carmena
Keyword(s):  
Motor Cortex ◽  
Neural Activity ◽  
Oscillatory Activity ◽  
Neural Population ◽  
Beta Band ◽  
Neural Basis ◽  
Movement Onset ◽  
Beta Oscillations ◽  
Beta Power ◽  
Oscillatory Power

Motor cortical beta oscillations have been reported for decades, yet their behavioral correlates remain unresolved. Some studies link beta oscillations to changes in underlying neural activity, but the specific behavioral manifestations of these reported changes remain elusive. To investigate how changes in population neural activity, beta oscillations, and behavior are linked, we recorded multi-scale neural activity from motor cortex while three macaques performed a novel neurofeedback task. Subjects volitionally brought their beta oscillatory power to an instructed state and subsequently executed an arm reach. Reaches preceded by a reduction in beta power exhibited significantly faster movement onset times than reaches preceded by an increase in beta power. Further, population neural activity was found to shift farther from a movement onset state during beta oscillations that were neurofeedback-induced or naturally occurring during reaching tasks. This finding establishes a population neural basis for slowed movement onset following periods of beta oscillatory activity.

scholarly journals Preparing to Stop Action Increases Beta Band Power in Contralateral Sensorimotor Cortex

2019 ◽  
Vol 31 (5) ◽  
pp. 657-668 ◽  
Author(s):  
Vignesh Muralidharan ◽  
Xinze Yu ◽  
Mike X Cohen ◽  
Adam R. Aron
Keyword(s):  
Sensorimotor Cortex ◽  
Source Separation ◽  
High Temporal Resolution ◽  
Beta Band ◽  
Cortical Dynamics ◽  
Scalp Eeg ◽  
Band Power ◽  
Beta Power ◽  
Clinical Disorders ◽  
Oscillatory Power

How do we prepare to stop ourselves in the future? Here, we used scalp EEG to test the hypothesis that people prepare to stop by putting parts of their motor system (specifically, here, sensorimotor cortex) into a suppressed state ahead of time. On each trial, participants were cued to prepare to stop one hand and then initiated a bimanual movement. On a minority of trials, participants were instructed to stop the cued hand while continuing quickly with the other. We used a guided multivariate source separation method to examine oscillatory power changes in presumed sensorimotor cortical areas. We observed that, when people prepare to stop a hand, there were above-baseline beta band power increases (12–24 Hz) in contralateral cortex up to a second earlier. This increase in beta band power in the proactive period was functionally relevant because it predicted, trial by trial, the degree of selectivity with which participants subsequently stopped a response but did not relate to movement per se. Thus, preparing to stop particular response channels corresponds to increased beta power from contralateral (sensorimotor) cortex, and this relates specifically to subsequent stopping. These results provide a high temporal resolution and frequency-specific electrophysiological signature of the preparing-to-stop state that is pertinent to future studies of mitigating provocation, including in clinical disorders. The results also highlight the utility of guided multivariate source separation for revealing the cortical dynamics underlying both movement and response suppression.

scholarly journals Age-related changes in oscillatory power affect motor action

PLoS ONE ◽  
2017 ◽  
Vol 12 (11) ◽  
pp. e0187911 ◽  
Author(s):  
Liqing Liu ◽  
Nils Rosjat ◽  
Svitlana Popovych ◽  
Bin A. Wang ◽  
Azamat Yeldesbay ◽  
...  
Keyword(s):  
Motor Action ◽  
Age Related ◽  
Oscillatory Power ◽  
Age Related Changes

28 Age-related changes in diastolic transmitral flow dispersion

1999 ◽  
Vol 1 ◽  
pp. S15-S15
Author(s):  
A YAGENSKY ◽  
Y FEDOROV
Keyword(s):  
Transmitral Flow ◽  
Age Related ◽  
Age Related Changes

Age-related changes of the 3′APOB-VNTR genotype pool in ageing cohorts

1998 ◽  
Vol 62 (2) ◽  
pp. 115-122 ◽  
Author(s):  
G. De BENEDICTIS ◽  
L. CAROTENUTO ◽  
G. CARRIERI ◽  
M. De LUCA ◽  
E. FALCONE ◽  
...  
Keyword(s):  
Age Related ◽  
Age Related Changes

Age-related Changes in the Expression of Affect During Infancy and Early Childhood

2014 ◽  
Author(s):  
B. E. Vaughn ◽  
N. Shin ◽  
L. Monteiro ◽  
W. Truitt
Keyword(s):  
Early Childhood ◽  
Age Related ◽  
Infancy And Early Childhood ◽  
Age Related Changes

Age-Related Changes in Flexible Listening: Studies on Meta-Audition and the False Hearing Effect

2012 ◽  
Author(s):  
Chad S. Rogers ◽  
Larry L. Jacoby ◽  
Mitchell S. Sommers ◽  
Arthur Wingfield
Keyword(s):  
Age Related ◽  
Listening Studies ◽  
Age Related Changes

Age-Related Changes in Peripersonal Space: Evidence From the Rubber Hand Illusion

2012 ◽  
Author(s):  
Emily K. Bloesch ◽  
Richard A. Abrams
Keyword(s):  
Peripersonal Space ◽  
Rubber Hand Illusion ◽  
Rubber Hand ◽  
Age Related ◽  
Age Related Changes
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