Results 11 to 20 of about 53,282 (289)

Decision time, slow inhibition, and theta rhythm [PDF]

open access: yesThe Journal of Neuroscience, 2010
In this paper, we examine decision making in a spiking neuronal network and show that longer time constants for the inhibitory neurons can decrease the reaction times and produce theta rhythm.We analyze the mechanism and find that the spontaneous firing
Feng, Jianfeng   +2 more
core   +4 more sources

Phase-locked closed-loop ultrasound stimulation modulates theta and gamma rhythms in the mouse hippocampus

open access: yesFrontiers in Neuroscience, 2022
Previous studies have demonstrated that open-loop transcranial ultrasound stimulation (TUS) can modulate theta and gamma rhythms of the local field potentials (LFPs) in the mouse hippocampus; however, the manner in which closed-loop TUS with different ...
Zhenyu Xie   +7 more
doaj   +1 more source

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   +1 more source

Older rats show slow modulation of hippocampal theta rhythm during voluntary running

open access: yesExperimental Gerontology, 2023
Aging causes brain function degeneration and slows many motor and behavioural responses. The hippocampal theta rhythm (4–12 Hz) is related to cognition and locomotion.
Cheryl C.H. Yang   +5 more
doaj   +1 more source

Artificial theta stimulation impairs encoding of contextual fear memory. [PDF]

open access: yesPLoS ONE, 2012
Several experiments have demonstrated an intimate relationship between hippocampal theta rhythm (4-12 Hz) and memory. Lesioning the medial septum or fimbria-fornix, a fiber track connecting the hippocampus and the medial septum, abolishes the theta ...
Arto Lipponen   +3 more
doaj   +1 more source

Does Proprioception Involve Synchronization with Theta Rhythms by a Novel Piezo2 Initiated Ultrafast VGLUT2 Signaling?

open access: yesBiophysica, 2023
This opinion manuscript outlines how the hippocampal theta rhythm could receive two novel peripheral inputs. One of the ways this could be achieved is through Piezo2 channels and atypical hippocampal-like metabotropic glutamate receptors coupled to ...
Balázs Sonkodi
doaj   +1 more source

Young infants process prediction errors at the theta rhythm

open access: yesNeuroImage, 2021
Examining how young infants respond to unexpected events is key to our understanding of their emerging concepts about the world around them. From a predictive processing perspective, it is intriguing to investigate how the infant brain responds to ...
Moritz Köster   +3 more
doaj   +1 more source

Generation of theta activity (RSA) in the cingulate cortex of the rat [PDF]

open access: yes, 1982
Unit activity recorded from the cingulate cortex during theta rhythm shows periodic trains of spikes which are phase-locked to the local theta field potential waves. These cortical theta units were also shown to be correlated with hippocampal theta units.
Holsheimer, J.
core   +3 more sources

A modelling study of beta-amyloid induced change in hippocampal theta rhythm [PDF]

open access: yes, 2011
Many dementia cases, such as Alzheimer’s disease (AD), are characterized by an increase in low frequency field potential oscillations. However, a definitive understanding of the effects of the beta-Amyloid peptide, which is a main marker of AD, on
Damien Coyle   +3 more
core   +2 more sources

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