Results 41 to 50 of about 125,065 (291)

Gamma Oscillations and Emotional Memory [PDF]

, 2022
Abstract Increased visual gamma band activity is known to relate to memory and encoding in cognitive tasks and has been shown to be present during arousing compared to neutral stimulus processing. Here, we set out to investigate whether gamma activity is stronger for later remembered compared to later forgotten emotional pictures ...
Lisa Luther, Lycia D. de Voogd, Muriel A. Hagenaars, Ole Jensen   +3 more
openaire   +1 more source

Gamma oscillation plasticity is mediated via parvalbumin interneurons [PDF]

Science Advances, 2023
Understanding the plasticity of neuronal networks is an emerging field of (patho-) physiological research, yet the underlying cellular mechanisms remain poorly understood. Gamma oscillations (30 to 80 hertz), a biomarker of cognitive performance, require and potentiate glutamatergic transmission onto parvalbumin-positive interneurons (PVIs)
Michael D. Hadler, Alexandra Tzilivaki, Dietmar Schmitz, Henrik Alle, Jörg R. P. Geiger   +4 more
openaire   +3 more sources

Dependency of gamma oscillations in E/I neuronal network on illumination contrast of external stimulus

Theoretical and Applied Mechanics Letters, 2019
Synchronous gamma oscillations are believed to play a prominent role in the information processing of biological neural systems. Experimental observations have found that the frequency and power of gamma oscillations in the primary visual cortex (V1 zone)
Xiaochun Gu, Fang Han, Zhijie Wang, Xia Peng   +3 more
doaj   +1 more source

Suppression of Low-Frequency Gamma Oscillations by Activation of 40-Hz Oscillation [PDF]

Cerebral Cortex, 2021
Abstract Gamma oscillations have received considerable attention owing to their association with cognitive function and various neuropsychiatric disorders. However, interactions of gamma oscillations at different frequency bands in humans remain unclear. In the present magnetoencephalographic study, brain oscillations in a wide frequency
Shunsuke Sugiyama, Tomoya Taniguchi, Tomoaki Kinukawa, Nobuyuki Takeuchi, Kazutaka Ohi, Toshiki Shioiri, Makoto Nishihara, Koji Inui   +7 more
openaire   +2 more sources

Global Seismic Oscillations in Soft Gamma Repeaters [PDF]

, 1998
There is evidence that soft gamma repeaters (SGRs) are neutron stars which experience frequent starquakes, possibly driven by an evolving, ultra-strong magnetic field. The empirical power-law distribution of SGR burst energies, analogous to the Gutenberg-
Barat C., Benioff H., Gutenberg B., Paczynski B., Robert C. Duncan, Thompson C.   +5 more
core   +2 more sources

Noise promotes independent control of gamma oscillations and grid firing within recurrent attractor networks

eLife, 2015
Neural computations underlying cognitive functions require calibration of the strength of excitatory and inhibitory synaptic connections and are associated with modulation of gamma frequency oscillations in network activity.
Lukas Solanka, Mark CW van Rossum, Matthew F Nolan   +2 more
doaj   +1 more source

Effects of Transcranial Magnetic Stimulation Therapy on Evoked and Induced Gamma Oscillations in Children with Autism Spectrum Disorder

Brain Sciences, 2020
Autism spectrum disorder (ASD) is a behaviorally diagnosed neurodevelopmental condition of unknown pathology. Research suggests that abnormalities of elecltroencephalogram (EEG) gamma oscillations may provide a biomarker of the condition.
Manuel F. Casanova, Mohamed Shaban, Mohammed Ghazal, Ayman S. El-Baz, Emily L. Casanova, Ioan Opris, Estate M. Sokhadze   +6 more
doaj   +1 more source

Evidence for Neutrino Oscillations from Muon Decay at Rest [PDF]

, 1996
A search for nu_bar_mu to nu_bar_e oscillations has been conducted at the Los Alamos Meson Physics Facility using nu_bar_mu from mu+ decay at rest. The nu_bar_e are detected via the reaction (nu_bar_e,p) -> (e+,n), correlated with the 2.2 MeV gamma from (
A. Fazely, A. M. Eisner, B. Achkar, B. Bodmann, B. Bodmann, B. D. Dieterle, B. Zeitnitz, C. Athanassopoulos, C. Athanassopoulos, C. Cardall, C. H. Llewellyn Smith, C. Haber, D. H. White, D. O. Caldwell, D. Rein, D. Smith, D. Works, E. J. Beise, E. Kolbe, F. J. Federspiel, G. B. Mills, G. Barr, G. J. VanDalen, G. S. Vidyakin, G. T. Garvey, G. Zacek, H. J. Kim, I. Cohen, I. Stancu, J. B. Donahue, J. Hill, J. J. Napolitano, J. Margulies, J. N. Abdurashitov, J. N. Bahcall, J. Waltz, K. Johnston, K. McIlhany, K. S. McFarland, L. A. Ahrens, L. B. Auerbach, L. Borodovsky, M. Albert, M. C. Goodman, M. Fukugita, M. Fukugita, M. Gray, N. Ushida, N. Wadia, P. Anselmanni, P. Astier, P. Vogel, R. A. Reeder, R. A. Reeder, R. Becker-Szendy, R. C. Allen, R. Davis, R. Imlay, R. L. Burman, R. L. Burman, R. L. Burman, R. M. Gunasingha, R. Majkic, R. Tayloe, S. Barr, S. J. Freedman, S. Yellin, T. K. Gaisser, V. Sandberg, W. C. Louis, W. Metcalf, W. Strossman, W. Vernon, Y-X. Wang, Y. Fukuda, Y. Hirata, Y. Xiao   +76 more
core   +3 more sources

MEG studies of motor cortex gamma oscillations: Evidence for a gamma fingerprint in the brain?

Frontiers in Human Neuroscience, 2013
The human motor cortex exhibits transient bursts of high frequency gamma oscillations in the 60 to 90 Hz range during movement. It has been proposed that gamma oscillations generally reflect local intracortical activity. However, movement-evoked gamma is
Douglas Owen Cheyne, Paul eFerrari
doaj   +1 more source

Gamma oscillations in cognitive disorders

Current Opinion in Neurobiology, 2018
Gamma oscillations (∼25-100 Hz) are believed to play a role in cognition. Accordingly, aberrant gamma oscillations have been observed in several cognitive disorders, including Alzheimer's disease and Fragile X syndrome. Here, we review how recent results showing abnormal gamma rhythms in Alzheimer's disease and Fragile X syndrome help reveal links ...
Alexandra J, Mably, Laura Lee, Colgin
openaire   +2 more sources