Results 31 to 40 of about 36,242 (250)

New Insights Into the Pathogenesis of Alzheimer's Disease

Frontiers in Neurology, 2020
Alzheimer's disease (AD), a common neurodegenerative disease in the elderly and the most prevalent cause of dementia, is characterized by progressive cognitive impairment.
Liyuan Fan, Liyuan Fan, Chengyuan Mao, Xinchao Hu, Shuo Zhang, Shuo Zhang, Zhihua Yang, Zhihua Yang, Zhengwei Hu, Zhengwei Hu, Huifang Sun, Huifang Sun, Yu Fan, Yu Fan, Yali Dong, Jing Yang, Changhe Shi, Yuming Xu   +17 more
doaj   +1 more source

Optimal flickering light stimulation for entraining gamma rhythms in older adults

Scientific Reports, 2022
With aging, optimal parameters of flickering light stimulation (FLS) for gamma entrainment may change in the eyes and brain. We investigated the optimal FLS parameters for gamma entrainment in 35 cognitively normal old adults by comparing event-related ...
Yeseung Park, Kanghee Lee, Jaehyeok Park, Jong Bin Bae, Sang-Su Kim, Do-Won Kim, Se Joon Woo, Seunghyup Yoo, Ki Woong Kim   +8 more
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Transcranial alternating current stimulation combined with sound stimulation improves cognitive function in patients with Alzheimer’s disease: Study protocol for a randomized controlled trial

Frontiers in Aging Neuroscience, 2023
BackgroundThe number of patients with Alzheimer’s disease (AD) worldwide is increasing yearly, but the existing treatment methods have poor efficacy. Transcranial alternating current stimulation (tACS) is a new treatment for AD, but the offline effect of
Yang Liu, Shuzhen Liu, Can Tang, Keke Tang, Di Liu, Meilian Chen, Zhiqi Mao, Xuewei Xia   +7 more
doaj   +1 more source

What happens in between? Human oscillatory brain activity related to crossmodal spatial cueing. [PDF]

, 2008
Previous studies investigated the effects of crossmodal spatial attention by comparing the responses to validly versus invalidly cued target stimuli. Dynamics of cortical rhythms in the time interval between cue and target might contribute to cue effects
Maja U Trenner, Rössner Konstanze, Heekeren Hauke R., Heekeren, HR, Heekeren, Hauke R., Manfred Fahle, Trenner, M., Wenzel, Rüdiger, Konstanze Rössner, Trenner Maja U., Roessner, Konstanze, Hauke R Heekeren, Fahle, M, Rüdiger Wenzel, Fahle Manfred, Roessner, K., Fahle, Manfred, Villringer, Arno, Bauer, Markus, Wenzel Rüdiger, Villringer Arno, Bauer, M, Fahle, M., Markus Bauer, Wenzel, R, Bauer Markus, Heekeren, H., Villringer, A. ; https://orcid.org/, Trenner, MU, Trenner, Maja U., Rössner, K, Arno Villringer, Villringer, A., Villringer, A, Bauer, M., Wenzel, R.   +35 more
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Effect of Stimulus Contrast and Visual Attention on Spike-Gamma Phase Relationship in Macaque Primary Visual Cortex

Frontiers in Computational Neuroscience, 2018
Brain signals often show rhythmic activity in the so-called gamma range (30–80 Hz), whose magnitude and center frequency are modulated by properties of the visual stimulus such as size and contrast, as well as by cognitive processes such as attention ...
Aritra Das, Supratim Ray
doaj   +1 more source

Acute 5-HT2C Receptor Antagonist SB-242084 Treatment Affects EEG Gamma Band Activity Similarly to Chronic Escitalopram

Frontiers in Pharmacology, 2020
Serotonin 2C receptors (5-HT2CRs) are implicated in the pathomechanism and treatment of anxiety and depression. Recently, as a new biomarker of depression, alterations in the gamma power of the electroencephalogram (EEG) have been suggested.
Noémi Papp, Szabolcs Koncz, Diána Kostyalik, Tamás Kitka, Péter Petschner, Péter Petschner, Szilvia Vas, Szilvia Vas, Szilvia Vas, György Bagdy, György Bagdy, György Bagdy   +11 more
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Cortical gamma rhythms modulate NMDAR-mediated spike timing dependent plasticity in a biophysical model. [PDF]

PLoS Computational Biology, 2009
Spike timing dependent plasticity (STDP) has been observed experimentally in vitro and is a widely studied neural algorithm for synaptic modification.
Shane Lee, Kamal Sen, Nancy Kopell
doaj   +1 more source

Altered excitatory-inhibitory balance in the NMDA-hypofunction model of schizophrenia

Frontiers in Molecular Neuroscience, 2008
Schizophrenia is a common psychiatric disorder of high incidence, affecting approximately 1% of the world population. The essential neurotransmitter pathology of schizophrenia remains poorly defined, despite huge advances over the past half-century in ...
Colin Kehrer, Nino Maziashvili, Tamar Dugladze, Tengis Gloveli   +3 more
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Musical Rhythm for Linguists: A Response to Justin London [PDF]

, 2012
Musical timing is a rich, complex phenomenon which changes across cultures, periods and styles and requires highly explicit terminology in order to communicate clearly between music theorists, psychologists, neuroscientists, performers and indeed with ...
Overy, Katie, Katie Overy
core   +1 more source

The contribution of electrical synapses to field potential oscillations in the hippocampal formation

Frontiers in Neural Circuits, 2014
Electrical synapses are a type of cellular membrane junction referred to as gap junctions (GJs). GJs have been regarded as an important component within the neuronal networks that underlie synchronous neuronal activity and field potential oscillations ...
Anna ePosłuszny
doaj   +1 more source