Results 11 to 20 of about 16,909 (255)

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

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

Interneuronal mechanisms of hippocampal theta oscillations in a full-scale model of the rodent CA1 circuit

open access: yeseLife, 2016
The hippocampal theta rhythm plays important roles in information processing; however, the mechanisms of its generation are not well understood. We developed a data-driven, supercomputer-based, full-scale (1:1) model of the rodent CA1 area and studied ...
Marianne J Bezaire   +4 more
doaj   +1 more source

Long-term plasticity is proportional to theta-activity. [PDF]

open access: yesPLoS ONE, 2009
BACKGROUND:Theta rhythm in the hippocampal formation is a main feature of exploratory behaviour and is believed to enable the encoding of new spatial information and the modification of synaptic weights.
Marian Tsanov, Denise Manahan-Vaughan
doaj   +1 more source

Nonlinear properties of the brain theta rhythm [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика
The purpose of this study is to identify nonlinearity of local brain field potential signals during theta rhythm. Methods. The nonlinearity in the signal is manifested in the synchronous behavior of the fundamental frequency and its higher harmonics; to
Dolinina, Anastasiya Yuryevna   +4 more
doaj   +1 more source

Neurofeedback training improves episodic and semantic long-term memory performance

open access: yesScientific Reports, 2021
Understanding and improving memory are vital to enhance human life. Theta rhythm is associated with memory consolidation and coding, but the trainability and effects on long-term memory of theta rhythm are unknown.
Yu-Hsuan Tseng   +2 more
doaj   +1 more source

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   +1 more source

Long-Term Neurophysiological Outcomes in Patients Undergoing Coronary Artery Bypass Grafting

open access: yesBrazilian Journal of Cardiovascular Surgery, 2021
Introduction: This study aims to evaluate late postoperative neurophysiological outcomes in patients after coronary artery bypass grafting (CABG). Methods: Forty-five male patients with stable coronary artery disease aged 45-69 years underwent extended ...
Irina V. Tarasova   +3 more
doaj   +1 more source

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