Results 41 to 50 of about 8,598 (236)
Background: Prefrontal theta oscillations are involved in neuronal information transfer and retention. Phases along the theta cycle represent varied excitability states, whereby high-excitability states correspond to high-frequency neuronal activity and ...
Pedro Caldana Gordon +4 more
doaj +1 more source
On cross-frequency phase-phase coupling between theta and gamma oscillations in the hippocampus
Phase-amplitude coupling between theta and multiple gamma sub-bands is a hallmark of hippocampal activity and believed to take part in information routing. More recently, theta and gamma oscillations were also reported to exhibit phase-phase coupling, or
Robson Scheffer-Teixeira +1 more
doaj +1 more source
Previous studies have demonstrated that low-intensity transcranial ultrasound stimulation (TUS) can eliminate hippocampal neural activity. However, until now, it has remained unclear how ultrasound modulates theta and gamma oscillations in the ...
Zhen Li +4 more
doaj +1 more source
Dynamical modulation of theta-gamma coupling during REM sleep [PDF]
Theta phase modulates gamma amplitude during spatial navigation and rapid eye movement sleep (REMs). Although the REMs theta rhythm has been linked to spatial memory consolidation, the underlying mechanism remains unclear. We investigate dynamics of theta-gamma interactions across multiple frequency and temporal scales in simultaneous recordings from ...
Bandarabadi, Mojtaba +6 more
openaire +1 more source
Brain-to-Brain Coupling in the Gamma-Band as a Marker of Shared Intentionality
Cooperation and competition are two ways of social interaction keys to life in society. Recent EEG-based hyperscanning studies reveal that cooperative and competitive interactions induce an increase in interbrain coupling.
Paulo Barraza +3 more
doaj +1 more source
Depression is a common neuropsychiatric illness observed worldwide, and reduced interest in exploration is one of its symptoms. The control of dysregulated medial prefrontal cortex (mPFC) over the basolateral amygdala (BLA) is related to depression ...
Zihe Wang +4 more
doaj +1 more source
Mild cognitive impairment (MCI) refers to mild objective cognitive deficits and is associated with the later development of Alzheimer’s disease (AD). However, not all patients with MCI convert to AD.
Christian Sandøe Musaeus +4 more
doaj +1 more source
Ih tunes theta/gamma oscillations and cross-frequency coupling in an in silico CA3 model. [PDF]
Ih channels are uniquely positioned to act as neuromodulatory control points for tuning hippocampal theta (4-12 Hz) and gamma (25 Hz) oscillations, oscillations which are thought to have importance for organization of information flow.
Samuel A Neymotin +5 more
doaj +1 more source
Summary: Hippocampal theta and gamma rhythms are hypothesized to play a role in the physiology of higher cognition. Prior research has reported that an offset in theta cycles between the entorhinal cortex, CA3, and CA1 regions promotes independence of ...
Yuchen Zhou +7 more
doaj +1 more source
Errors elicit frontoparietal theta-gamma coupling that is modulated by endogenous estradiol levels. [PDF]
Cognitive control-related error monitoring is intimately involved in behavioral adaptation, learning, and individual differences in a variety of psychological traits and disorders. Accumulating evidence suggests that a focus on women's health and ovarian hormones is critical to the study of such cognitive brain functions.
Moser JS +4 more
europepmc +3 more sources

