Prefrontal Theta Rhythm As An Index Of Effortful Activity
نویسندگان
چکیده
منابع مشابه
Phase precession of medial prefrontal cortical activity relative to the hippocampal theta rhythm.
Theta phase-locking and phase precession are two related phenomena reflecting coordination of hippocampal place cell firing with the local, ongoing theta rhythm. The mechanisms and functions of both the phenomena remain unclear, though the robust correlation between firing phase and location of the animal has lead to the suggestion that this phase relationship constitutes a temporal code for sp...
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Memory consolidation is thought to involve the gradual transfer of transient hippocampal-dependent traces to distributed neocortical sites via the rhinal cortices. Recently, medial prefrontal (mPFC) neurons were shown to facilitate this process when their activity becomes synchronized. However, the mechanisms underlying this enhanced synchrony remain unclear. Because the hippocampus projects to...
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Hippocampal theta oscillations (4-12 Hz) are consistently recorded during memory tasks and spatial navigation. Despite several known circuits and structures that generate hippocampal theta locally in vitro, none of them were found to be critical in vivo, and the hippocampal theta rhythm is severely attenuated by disruption of external input from medial septum or entorhinal cortex. We investigat...
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Both the hippocampus and the medial prefrontal cortex are essential for successful performance in learning- and memory-related tasks. Within the hippocampus the theta rhythm plays an integral role in the timing of action potentials of hippocampal neurons responding to elements of any given task. Medial prefrontal cortex (mPFC) neurons display firing rate changes to specific facets of behavioral...
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The phenomenon of disappearance of the theta rhythm after lesioning of the septum and fornix has in its time stimulated a series of reports describing attempts to understand the roles of various structures in determining the electrical activity of the hippocampus and the functional significance of the theta rhythm. In chronic experiments with rabbits have shown that electrical destruction of do...
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ژورنال
عنوان ژورنال: Medicine & Science in Sports & Exercise
سال: 2020
ISSN: 1530-0315,0195-9131
DOI: 10.1249/01.mss.0000681076.39080.90