Results 41 to 50 of about 42,669 (284)

Beta-Band Resonance and Intrinsic Oscillations in a Biophysically Detailed Model of the Subthalamic Nucleus-Globus Pallidus Network

open access: yesFrontiers in Computational Neuroscience, 2019
Increased beta-band oscillatory activity in the basal ganglia network is associated with Parkinsonian motor symptoms and is suppressed with medication and deep brain stimulation (DBS).
Lucas A. Koelman, Madeleine M. Lowery
doaj   +1 more source

Parietal tACS at beta frequency improves vision in a crowding regime

open access: yesNeuroImage, 2020
Visual crowding is the inability to discriminate objects when presented with nearby flankers and sets a fundamental limit for conscious perception.
Luca Battaglini   +3 more
doaj   +1 more source

A model description of beta oscillations in the external globus pallidus. [PDF]

open access: yesCogn Neurodyn, 2023
The external globus pallidus (GPe), a subcortical nucleus located in the indirect pathway of the basal ganglia, is widely considered to have tight associations with abnormal beta oscillations (13-30 Hz) observed in Parkinson's disease (PD). Despite that many mechanisms have been put forward to explain the emergence of these beta oscillations, however ...
Chen M   +7 more
europepmc   +3 more sources

The lifespan trajectory of neural oscillatory activity in the motor system

open access: yesDevelopmental Cognitive Neuroscience, 2018
Numerous studies connect beta oscillations in the motor cortices to volitional movement, and beta is known to be aberrant in multiple movement disorders.
Elizabeth Heinrichs-Graham   +7 more
doaj   +1 more source

Dynamical Analyses on Beta Oscillations in a STN-GPE-GPI Model of Parkinson’s Disease

open access: yesComplexity, 2020
Exploring the behaviors of beta oscillations in the basal ganglia is helpful to understand the mechanism of Parkinson’s disease. Studies have shown that the external and internal segments (GPe, GPi) of the globus pallidus receive different intensities of
Yuanhong Bi   +3 more
doaj   +1 more source

The functional role of beta oscillations in Parkinson's disease

open access: yesParkinsonism & Related Disorders, 2014
Modulations of beta oscillations (13-30 Hz) during normal motor control suggest that they may act to promote current motor set at the expense of new movements. These oscillations are greatly enhanced in Parkinson's disease (PD) and there is strong correlative evidence linking beta activity at rest and beta changes in response to treatment with ...
Little, S, Brown, P
openaire   +3 more sources

Disrupted dopamine transmission and the emergence of exaggerated beta oscillations in subthalamic nucleus and cerebral cortex

open access: yes, 2008
In the subthalamic nucleus (STN) of Parkinson’s disease (PD) patients, a pronounced synchronization of oscillatory activity at beta frequencies (15–30 Hz) accompanies movement difficulties.
Sharott, A   +7 more
core   +1 more source

Posterior Beta and Anterior Gamma Oscillations Predict Cognitive Insight [PDF]

open access: yes, 2009
Pioneering neuroimaging studies on insight have revealed neural correlates of the emotional “Aha!” component of the insight process, but neural substrates of the cognitive component, such as problem restructuring (a key to transformative reasoning ...
Sheth, Bhavin R.   +2 more
core   +1 more source

Functional interaction of abnormal beta and gamma oscillations on bradykinesia in parkinsonian rats

open access: yesBrain Research Bulletin
Bradykinesia, a debilitating symptom characterized by impaired movement initiation and reduced speed in Parkinson’s disease (PD), is associated with abnormal oscillatory activity in the motor cortex-basal ganglia circuit.
Xinxin Jiang   +4 more
doaj   +1 more source

Rhythm of the beta-cell oscillator is not governed by a single regulator: multiple systems contribute to oscillatory behavior

open access: yes, 2007
Pulsatile insulin output, paralleled by oscillations in intracellular Ca(2+), reflect oscillating metabolism within beta-cells in response to secretory fuels.
Heart, Emma   +3 more
core   +1 more source

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