Neural oscillations in the infralimbic cortex after electrical stimulation of the amygdala. Relevance to acute stress processing
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Comparative Neurology"
DOI: 10.1002/cne.24416
Abstract: The stress system coordinates the adaptive reactions of the organism to stressors. Therefore, dysfunctions in this circuit may correlate to anxiety‐related disorders, including depression. Comprehending the dynamics of this network may lead to a better… read more here.
Keywords: acute stress; stress; theta gamma; oscillations infralimbic ... See more keywords
Abnormal hippocampal theta and gamma hypersynchrony produces network and spike timing disturbances in the Fmr1-KO mouse model of Fragile X syndrome
Sign Up to like & getrecommendations! Published in 2018 at "Neurobiology of Disease"
DOI: 10.1016/j.nbd.2018.02.011
Abstract: Neuronal networks can synchronize their activity through excitatory and inhibitory connections, which is conducive to synaptic plasticity. This synchronization is reflected in rhythmic fluctuations of the extracellular field. In the hippocampus, theta and gamma band… read more here.
Keywords: network; fragile syndrome; theta gamma; spike ... See more keywords
Phase-amplitude coupled persistent theta and gamma oscillations in rat primary motor cortex in vitro
Sign Up to like & getrecommendations! Published in 2017 at "Neuropharmacology"
DOI: 10.1016/j.neuropharm.2017.04.009
Abstract: ABSTRACT In vivo, theta (4–7 Hz) and gamma (30–80 Hz) neuronal network oscillations are known to coexist and display phase‐amplitude coupling (PAC). However, in vitro, these oscillations have for many years been studied in isolation.… read more here.
Keywords: gamma oscillations; theta gamma; mgr; vitro ... See more keywords
The 5-HT3 receptor antagonist ondansetron potentiates the effects of the acetylcholinesterase inhibitor donepezil on neuronal network oscillations in the rat dorsal hippocampus
Sign Up to like & getrecommendations! Published in 2018 at "Neuropharmacology"
DOI: 10.1016/j.neuropharm.2018.09.017
Abstract: ABSTRACT Cognitive impairments in Alzheimer's disease (AD) have been associated with alterations in neuronal oscillatory activity, of which hippocampal theta and gamma oscillations are essential for the coordination of neuronal networks during cognitive functions. Cognitive… read more here.
Keywords: ondansetron potentiates; ht3 receptor; potentiates effects; theta gamma ... See more keywords
Hippocampal-prefrontal theta-gamma coupling during performance of a spatial working memory task
Sign Up to like & getrecommendations! Published in 2017 at "Nature Communications"
DOI: 10.1038/s41467-017-02108-9
Abstract: Cross-frequency coupling supports the organization of brain rhythms and is present during a range of cognitive functions. However, little is known about whether and how long-range cross-frequency coupling across distant brain regions subserves working memory.… read more here.
Keywords: working memory; gamma coupling; theta gamma; spatial working ... See more keywords
Frontal theta-gamma ratio is a sensitive index of concussion history in athletes on tasks of visuo-motor control
Sign Up to like & getrecommendations! Published in 2019 at "Scientific Reports"
DOI: 10.1038/s41598-019-54054-9
Abstract: Patients with mTBI often show deficits in executive function and changes in neural activity. Similar changes in those with a history of mTBI (i.e. concussion), however, have not been consistently reported. Frontal theta-to-gamma frequency ratio… read more here.
Keywords: concussion; history; theta gamma; motor ... See more keywords
Theta- and gamma-band oscillatory uncoupling in the macaque hippocampus
Sign Up to like & getrecommendations! Published in 2022 at "eLife"
DOI: 10.1101/2021.12.30.474585
Abstract: Nested hippocampal oscillations in the rodent give rise to temporal dynamics that may underlie learning, memory, and decision making. Although theta/gamma coupling in rodent CA1 occurs during exploration, in contrast to sharp-wave ripples that emerge… read more here.
Keywords: band; theta gamma; gamma; oscillatory ... See more keywords
Alterations in theta-gamma coupling and sharp wave-ripple, signs of prodromal hippocampal network impairment in the TgF344-AD rat model
Sign Up to like & getrecommendations! Published in 2023 at "Frontiers in Aging Neuroscience"
DOI: 10.3389/fnagi.2023.1081058
Abstract: Alzheimer’s disease (AD) is a severe neurodegenerative disorder caused by the accumulation of toxic proteins, amyloid-beta (Aβ) and tau, which eventually leads to dementia. Disease-modifying therapies are still lacking, due to incomplete insights into the… read more here.
Keywords: wave ripple; network; tgf344; theta gamma ... See more keywords
How Many Gammas? Redefining Hippocampal Theta-Gamma Dynamic During Spatial Learning
Sign Up to like & getrecommendations! Published in 2022 at "Frontiers in Behavioral Neuroscience"
DOI: 10.3389/fnbeh.2022.811278
Abstract: The hippocampal formation is one of the brain systems in which the functional roles of coordinated oscillations in information representation and communication are better studied. Within this circuit, neuronal oscillations are conceived as a mechanism… read more here.
Keywords: gammas redefining; theta gamma; hippocampal theta; many gammas ... See more keywords
Neural Oscillations in Aversively Motivated Behavior
Sign Up to like & getrecommendations! Published in 2022 at "Frontiers in Behavioral Neuroscience"
DOI: 10.3389/fnbeh.2022.936036
Abstract: Fear and anxiety-based disorders are highly debilitating and among the most prevalent psychiatric disorders. These disorders are associated with abnormal network oscillations in the brain, yet a comprehensive understanding of the role of network oscillations… read more here.
Keywords: motivated behavior; neural oscillations; theta gamma; aversively motivated ... See more keywords
Theta and gamma oscillations in the rat hippocampus support the discrimination of object displacement in a recognition memory task
Sign Up to like & getrecommendations! Published in 2022 at "Frontiers in Behavioral Neuroscience"
DOI: 10.3389/fnbeh.2022.970083
Abstract: Episodic memory depends on the recollection of spatial and temporal aspects of past experiences in which the hippocampus plays a critical role. Studies on hippocampal lesions in rodents have shown that dentate gyrus (DG) and… read more here.
Keywords: theta gamma; task; discrimination; memory ... See more keywords