Results 261 to 270 of about 86,444 (281)
Some of the next articles are maybe not open access.
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
openaire +4 more sources
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)
openaire +1 more source
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)
openaire +1 more source
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
openaire +2 more sources
The Functional Significance of Theta and Upper Alpha Oscillations
Experimental Psychology, 2005Abstract. Recent findings are reviewed indicating that upper alpha oscillations - when analyzed with appropriate time/frequency resolution - show a similar physiological reactivity as theta in working memory tasks. Comparable to theta, a load dependent increase in power can be observed during retention and increased evoked activity during retrieval ...
Wolfgang, Klimesch +2 more
openaire +2 more sources
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
openaire +3 more sources
Alpha Oscillations Correlate with the Successful Inhibition of Unattended Stimuli
Journal of Cognitive Neuroscience, 2011AbstractBecause the human visual system is continually being bombarded with inputs, it is necessary to have effective mechanisms for filtering out irrelevant information. This is partly achieved by the allocation of attention, allowing the visual system to process relevant input while blocking out irrelevant input.
Barbara F. Händel +2 more
openaire +2 more sources
Occipital alpha oscillations and sex differences
2021Tutors: Mireia Torralba Cuello, Salvador Soto Faraco, Alice ...
openaire +1 more source
Effect of brain alpha oscillation on the performance in laparoscopic skills simulator training
Surgical Endoscopy and Other Interventional Techniques, 2020Jiangbo Pu, Feng Wan, Yong Hu
exaly