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EEG alpha oscillations: The inhibition–timing hypothesis
Brain Research Reviews, 2007The traditional belief is that the event-related alpha response can solely be described in terms of suppression or event-related desynchronization (ERD). Recent research, however, has shown that under certain conditions alpha responds reliably with an increase in amplitudes (event-related synchronization or ERS).
Klimesch, W, Sauseng, P, Hanslmayr, S
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Anxiety and synchrony of alpha oscillations
International Journal of Psychophysiology, 2005The associations between state anxiety and individually adjusted alpha sub-bands mean spectral power and coherence measures registered in resting condition and during experimental settings were investigated in 30 males aged 18-25 years. Averaged across all cortical sites, spectral power was treated as a complex measure dependent on both the number of ...
Gennadij G, Knyazev +2 more
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The many characters of visual alpha oscillations
European Journal of Neuroscience, 2017AbstractA central feature of human brain activity is the alpha rhythm: a 7–13 Hz oscillation observed most notably over occipitoparietal brain regions during periods of eyes‐closed rest. Alpha oscillations covary with changes in visual processing and have been associated with a broad range of neurocognitive functions.
Michael S. Clayton +2 more
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Cause or consequence? Alpha oscillations in visuospatial attention
Trends in Neurosciences, 2021A well-established finding in the literature of human studies is that alpha activity (rhythmical brain activity around 10 Hz) shows retinotopic amplitude modulation during shifts in visual attention. Thus, it has long been argued that alpha amplitude modulation might play a crucial role in attention-driven alterations in visual information processing ...
Charline, Peylo +2 more
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Alpha Brain Oscillations and Inhibitory Control
Journal of Psychophysiology, 2009A major challenge for developmental cognitive neuroscience is to understand how changes in cognitive functions related to aging are associated with changes in the neuronal information processing architecture. Previous studies on EEG event-related brain oscillations suggest functional changes in alpha-bands with age during sensory and memory tasks ...
Christina Schmiedt-Fehr +2 more
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2017
Canonical quantization of QED in finite systems is performed in terms of new b-photon, f-electron, and f c -positron, which are called alpha-oscillators. The alpha-oscillator algebra is useful for non-perturbationally space-time resolved simulation solving the dual Cauchy problems of the time-dependent QED Hamiltonian \( {\widehat{H}}_{\mathrm{QED}}(t)
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Canonical quantization of QED in finite systems is performed in terms of new b-photon, f-electron, and f c -positron, which are called alpha-oscillators. The alpha-oscillator algebra is useful for non-perturbationally space-time resolved simulation solving the dual Cauchy problems of the time-dependent QED Hamiltonian \( {\widehat{H}}_{\mathrm{QED}}(t)
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Alpha oscillations as a correlate of trait anxiety
International Journal of Psychophysiology, 2004The associations among psychometric measures of anxiety and depression and individually adjusted electroencephalogram (EEG) spectral power measures registered in resting condition and during experimental settings were investigated in 30 males aged 18-25 years. During all stages of registration, Taylor Manifest Anxiety and Spielberger state anxiety (SA)
Gennadij G, Knyazev +2 more
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Theta and alpha oscillations linked to risk identifications
Brain Research, 2009Our recent functional MRI and event-related potential studies suggest that neural mechanisms underlying identifications of environmental and personal risks are characterized by distinct neural structures and time courses. The current work further investigated the role of non-phase locked activity in dissociation of the neural processes of environmental
Lee, TMC, Han, S, Qin, J
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Induced Oscillations in the Alpha Band: Functional Meaning
Epilepsia, 2003Summary: The phenomena of event‐related desynchronization (ERD) and synchronization (ERS) reflect the dynamics of neural networks and can be observed on different scalp locations at the same moment of time. Whereas on one cortical area a focal 10‐Hz ERD can be found, other areas can display a 10‐Hz ERS. This phenomenon is called focal ERD/surround ERS
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