Results 51 to 60 of about 19,334 (183)

Enhancement of encoding and retrieval functions through theta phase-specific manipulation of hippocampus

open access: yeseLife, 2014
Assessing the behavioral relevance of the hippocampal theta rhythm has proven difficult, due to a shortage of experiments that selectively manipulate phase-specific information processing.
Joshua H Siegle, Matthew A Wilson
doaj   +1 more source

Computational study of hippocampal-septal theta rhythm changes due to β-amyloid-altered ionic channels. [PDF]

open access: yesPLoS ONE, 2011
Electroencephagraphy (EEG) of many dementia patients has been characterized by an increase in low frequency field potential oscillations. One of the characteristics of early stage Alzheimer's disease (AD) is an increase in theta band power (4-7 Hz ...
Xin Zou   +3 more
doaj   +1 more source

EEG cortical network reveals the temporo-spatial mechanism of visual search

open access: yesBrain Research Bulletin, 2023
This study aims to explore a method based on brain networks for implicit attention by using wavelet coherence as feature to identify individual targets in the visual field, find the optimal classification rhythm and time window, and investigate the ...
Rui Qiao, Haiyong Zhang, Yin Tian
doaj   +1 more source

Independent theta phase coding accounts for CA1 population sequences and enables flexible remapping

open access: yeseLife, 2015
Hippocampal place cells encode an animal's past, current, and future location through sequences of action potentials generated within each cycle of the network theta rhythm.
Angus Chadwick   +2 more
doaj   +1 more source

The Role of the Medial Septum—Associated Networks in Controlling Locomotion and Motivation to Move

open access: yesFrontiers in Neural Circuits, 2021
The Medial Septum and diagonal Band of Broca (MSDB) was initially studied for its role in locomotion. However, the last several decades were focussed on its intriguing function in theta rhythm generation.
Petra Mocellin   +2 more
doaj   +1 more source

Novel insights into false recollection : A model of déjà vécu

open access: yes, 2010
The thesis of this paper is that deja experiences can be separated into two forms: deja vu, arising from the erroneous sensation of familiarity, and deja vecu, arising from the erroneous sensation of recollection.
O'Connor, Akira Robert   +2 more
core   +1 more source

The role of syllabic rhythm in speech perception across languages

open access: yesScientific Reports
The insertion of silences at regular intervals restores the intelligibility of English utterances that have been accelerated beyond comprehension, as long as the duration of the resulting speech-silence chunks falls within the theta rhythm of natural ...
Irene de la Cruz-Pavía   +5 more
doaj   +1 more source

Deciphering hippocampal place codes in weak theta rhythms

open access: yesNature Communications
Local field potentials (LFPs) reflect coordination among neural populations, yet their exact relationship to neural computation remains unknown. One exception is the theta rhythm of the rodent hippocampus, which organizes sequential firing among place ...
Gautam Agarwal   +5 more
doaj   +1 more source

Genetic dissection of theta rhythm heterogeneity in mice [PDF]

open access: yesProceedings of the National Academy of Sciences, 2005
Rhythmic oscillatory activities at the theta frequency (4-12Hz) in the hippocampus have long-attracted attention because they have been implicated in diverse brain functions, including spatial cognition. Although studies based on pharmacology and lesion experiments suggested heterogeneity of these rhythms and their behavioral correlates, controversies ...
Shin, J Shin, Jonghan   +4 more
openaire   +3 more sources

Respiration and brain neural dynamics associated with interval timing during odor fear learning in rats

open access: yesScientific Reports, 2020
In fear conditioning, where a conditioned stimulus predicts the arrival of an aversive stimulus, the animal encodes the time interval between the two stimuli.
Maryne Dupin   +4 more
doaj   +1 more source

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