Results 11 to 20 of about 36,242 (250)

Strength of gamma rhythm depends on normalization. [PDF]

open access: yesPLoS Biology, 2013
Neuronal assemblies often exhibit stimulus-induced rhythmic activity in the gamma range (30-80 Hz), whose magnitude depends on the attentional load. This has led to the suggestion that gamma rhythms form dynamic communication channels across cortical ...
Supratim Ray   +2 more
doaj   +4 more sources

Speed controls the amplitude and timing of the hippocampal gamma rhythm. [PDF]

open access: yesPLoS ONE, 2011
Cortical and hippocampal gamma oscillations have been implicated in many behavioral tasks. The hippocampus is required for spatial navigation where animals run at varying speeds.
Zhiping Chen   +4 more
doaj   +4 more sources

Different origins of gamma rhythm and high-gamma activity in macaque visual cortex. [PDF]

open access: yesPLoS Biology, 2011
During cognitive tasks electrical activity in the brain shows changes in power in specific frequency ranges, such as the alpha (8-12 Hz) or gamma (30-80 Hz) bands, as well as in a broad range above ∼80 Hz, called the high-gamma band.
Supratim Ray, John H R Maunsell
doaj   +4 more sources

Hippocampal theta modulation of neocortical spike times and gamma rhythm: a biophysical model study. [PDF]

open access: yesPLoS ONE, 2012
The hippocampal theta and neocortical gamma rhythms are two prominent examples of oscillatory neuronal activity. The hippocampus has often been hypothesized to influence neocortical networks by its theta rhythm, and, recently, evidence for such a direct ...
Eelke Spaak   +2 more
doaj   +3 more sources

Gamma rhythm in patients with ischemic stroke

open access: yesЛечащий Врач
Background. Gamma rhythm plays an important role in enabling cognitive processes. Studies confirm the association of gamma activity with visual and auditory perception, time perception, attention, consciousness and processing of semantic information ...
L. B. Novikova, K. M. Sharapova
doaj   +2 more sources

Frequency Characteristics of Rhythm Non-Assimilation in Canine Ventricular Fibrillation

open access: yesОбщая реаниматология, 2010
Ventricular fibrillation is the main cause of sudden cardiac death in many countries, including Russia; therefore to study ventricular fibrillation is an urgent problem.
M. I. Guryanov
doaj   +3 more sources

The gamma rhythm as a guardian of brain health [PDF]

open access: yeseLife
Gamma oscillations in brain activity (30–150 Hz) have been studied for over 80 years. Although in the past three decades significant progress has been made to try to understand their functional role, a definitive answer regarding their causal implication
Ana Maria Ichim   +7 more
doaj   +2 more sources

Effects on the Motor Cortex in Gamma Rhythm in Terms of Central Pattern Generator

open access: yesIEEE Access, 2019
The locomotion is one of the basic skills essential for animals' survival. It is a key research field where the locomotion is modulated by the motor cortex.
Qiang Lu, Zhenpeng Ma, Wenfeng Li
doaj   +3 more sources

Gamma oscillatory complexity conveys behavioral information in hippocampal networks

open access: yesNature Communications
The hippocampus and entorhinal cortex exhibit rich oscillatory patterns critical for cognitive functions. In the hippocampal region CA1, specific gamma-frequency oscillations, timed at different phases of the ongoing theta rhythm, are hypothesized to ...
Vincent Douchamps   +4 more
doaj   +2 more sources

Home - About - Disclaimer - Privacy