Theta Coherence 1 Theta and Gamma Coherence along the Septotemporal
نویسندگان
چکیده
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] Figures = 5; Tables = 0; Pages = 24 Summary = 301 words; Introduction = 647 words; Discussion = 1484
منابع مشابه
Theta and gamma coherence along the septotemporal axis of the hippocampus.
Theta and gamma rhythms synchronize neurons within and across brain structures. Both rhythms are widespread within the hippocampus during exploratory behavior and rapid-eye-movement (REM) sleep. How synchronous are these rhythms throughout the hippocampus? The present study examined theta and gamma coherence along the septotemporal (long) axis of the hippocampus in rats during REM sleep, a beha...
متن کاملKetamine disrupts theta synchrony across the septotemporal axis of the CA1 region of hippocampus.
The hippocampal theta signal reflects moment-to-moment variation in the synchrony of synaptic input to hippocampal neurons. Consistent with the topography of hippocampal afferents, the synchrony (coherence) of the theta signal varies across the septotemporal axis. Septotemporal variation in the theta signal can also be observed in relation to ongoing and past experience. Thus there is a systema...
متن کاملSeptotemporal variation in dynamics of theta: speed and habituation.
Theta (6-12 Hz) field potentials and the synchronization (coherence) of these potentials present neural network indices of hippocampal physiology. Theta signals within the hippocampal formation may reflect alterations in sensorimotor integration, the flow of sensory input, and/or distinct cognitive operations. While the power and coherence of theta signals vary across lamina within the septal h...
متن کاملNovel space alters theta and gamma synchrony across the longitudinal axis of the hippocampus
Hippocampal theta (6-10 Hz) and gamma (25-50 Hz and 65-100 Hz) local field potentials (LFPs) reflect the dynamic synchronization evoked by inputs impinging upon hippocampal neurons. Novel experience is known to engage hippocampal physiology and promote successful encoding. Does novelty synchronize or desynchronize theta and/or gamma frequency inputs across the septotemporal (long) axis of the h...
متن کاملTraveling Theta Waves along the Entire Septotemporal Axis of the Hippocampus
A topographical relationship exists between the hippocampus-entorhinal cortex and the neocortex. However, it is not known how these anatomical connections are utilized during information exchange and behavior. We recorded theta oscillations along the entire extent of the septotemporal axis of the hippocampal CA1 pyramidal layer. While the frequency of theta oscillation remained same along the e...
متن کامل