Theta-gamma cascades and running speed
نویسندگان
چکیده
منابع مشابه
Running speed alters the frequency of hippocampal gamma oscillations.
Successful spatial navigation is thought to employ a combination of at least two strategies: the following of landmark cues and path integration. Path integration requires that the brain use the speed and direction of movement in a meaningful way to continuously compute the position of the animal. Indeed, the running speed of rats modulates both the firing rate of neurons and the spectral prope...
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Large-scale neural activation dynamics in the hippocampal-entorhinal circuit local field potential, observable as theta and gamma rhythms and coupling between these rhythms, is predictive of encoding success. Behavioral studies show that systemic administration of muscarinic acetylcholine receptor antagonists selectively impairs encoding, suggesting that they may also disrupt the coupling betwe...
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Abbreviated title: Theta coherence Helen R. Sabolek, Stephanie C. Penley, James R. Hinman, Jamie G Bunce, Etan J. Markus, Monty Escabi and James J. Chrobak. Departments of Psychology and Biomedical Engineering, University of Connecticut, Storrs, CT 06269 Correspondence to: James J Chrobak, Department of Psychology, University of Connecticut, Storrs, CT 06269 E-mail: [email protected] Figu...
متن کاملRelationship between hippocampal theta activity and running speed in the rat.
The frequency of occurrence and amplitude of hippocampal theta waves induced by forced locomotion is proportional to speed of movement on a treadmill. Although induction of hippocampal theta waves is related to the initiation of movement, it is not dependent upon proprioceptive feedback because it persists in the resting animal after a bout of running. It is possible to obtain cortical theta wa...
متن کاملThe Theta-Gamma Neural Code
Theta and gamma frequency oscillations occur in the same brain regions and interact with each other, a process called cross-frequency coupling. Here, we review evidence for the following hypothesis: that the dual oscillations form a code for representing multiple items in an ordered way. This form of coding has been most clearly demonstrated in the hippocampus, where different spatial informati...
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ژورنال
عنوان ژورنال: Journal of Neurophysiology
سال: 2019
ISSN: 0022-3077,1522-1598
DOI: 10.1152/jn.00636.2018