scholarly journals Perisomatic Feedback Inhibition Underlies Cholinergically Induced Fast Network Oscillations in the Rat Hippocampus In Vitro

Neuron ◽  
2005 ◽  
Vol 45 (1) ◽  
pp. 105-117 ◽  
Author(s):  
Edward O. Mann ◽  
Jillian M. Suckling ◽  
Norbert Hajos ◽  
Susan A. Greenfield ◽  
Ole Paulsen
Keyword(s):  
Feedback Inhibition ◽  
Rat Hippocampus ◽  
Network Oscillations ◽  
Fast Network

scholarly journals Fast network oscillations induced by potassium transients in the rat hippocampus in vitro

2002 ◽  
Vol 542 (1) ◽  
pp. 167-179 ◽  
Author(s):  
Fiona E. N. LeBeau ◽  
Stephen K. Towers ◽  
Roger D. Traub ◽  
Miles A. Whittington ◽  
Eberhard H. Buhl
Keyword(s):  
Rat Hippocampus ◽  
Network Oscillations ◽  
Fast Network

Both Electrical and Chemical Synapses Mediate Fast Network Oscillations in the Olfactory Bulb

2003 ◽  
Vol 89 (5) ◽  
pp. 2601-2610 ◽  
Author(s):  
Daniel Friedman ◽  
Ben W. Strowbridge
Keyword(s):  
Olfactory Bulb ◽  
Molecular Mechanisms ◽  
Cell Activity ◽  
Cellular Mechanisms ◽  
Odor Processing ◽  
Network Oscillations ◽  
Fast Network ◽  
Fast Oscillations

Odor perception depends on a constellation of molecular, cellular, and network interactions in olfactory brain areas. Recently, there has been better understanding of the cellular and molecular mechanisms underlying the odor responses of neurons in the olfactory epithelium, the first-order olfactory area. In higher order sensory areas, synchronized activity in networks of neurons is known to be a prominent feature of odor processing. The perception and discrimination of odorants is associated with fast (20–70 Hz) electroencephalographic oscillations. The cellular mechanisms underlying these fast network oscillations have not been defined. In this study, we show that synchronous fast oscillations can be evoked by brief electrical stimulation in the rat olfactory bulb in vitro, partially mimicking the natural response of this brain region to sensory input. Stimulation induces periodic inhibitory synaptic potentials in mitral cells and prolonged spiking in GABAergic granule cells. Repeated stimulation leads to the persistent enhancement in both granule cell activity and mitral cell inhibition. Prominent oscillations in field recordings indicate that stimulation induces high-frequency activity throughout networks of olfactory bulb neurons. Network synchronization results from chemical and electrical synaptic interactions since both glutamate-receptor antagonists and gap junction inhibitors block oscillatory intracellular and field responses. Our results demonstrate that the olfactory bulb can generate fast oscillations autonomously through the persistent activation of networks of inhibitory interneurons. These local circuit interactions may be critically involved in odor processing in vivo.

Fast network oscillations in vitro exhibit a slow decay of temporal auto-correlations

2011 ◽  
Vol 34 (3) ◽  
pp. 394-403 ◽  
Author(s):  
Simon-Shlomo Poil ◽  
Rick Jansen ◽  
Karlijn van Aerde ◽  
Jaap Timmerman ◽  
Arjen B. Brussaard ◽  
...  
Keyword(s):  
Network Oscillations ◽  
Slow Decay ◽  
Fast Network

scholarly journals Neuronal mechanisms of the anoxia‐induced network oscillations in the rat hippocampus in vitro

2001 ◽  
Vol 536 (2) ◽  
pp. 521-531 ◽  
Author(s):  
Volodymyr Dzhala ◽  
Ilgam Khalilov ◽  
Yehezkiel Ben‐Ari ◽  
Roustem Khazipov
Keyword(s):  
Rat Hippocampus ◽  
Network Oscillations ◽  
Neuronal Mechanisms

The effects of general anaesthetics on carbachol-evoked gamma oscillations in the rat hippocampus in vitro

2003 ◽  
Vol 44 (7) ◽  
pp. 864-872 ◽  
Author(s):  
R. Dickinson ◽  
S. Awaiz ◽  
M.A. Whittington ◽  
W.R. Lieb ◽  
N.P. Franks
Keyword(s):  
Gamma Oscillations ◽  
Rat Hippocampus

Nonspecific effects of the gap junction blocker mefloquine on fast hippocampal network oscillations in the adult rat in vitro

Neuroscience ◽  
2011 ◽  
Vol 192 ◽  
pp. 11-19 ◽  
Author(s):  
C.J. Behrens ◽  
R. ul Haq ◽  
A. Liotta ◽  
M.L. Anderson ◽  
U. Heinemann
Keyword(s):  
Gap Junction ◽  
Adult Rat ◽  
Network Oscillations ◽  
Nonspecific Effects ◽  
Hippocampal Network

Calmodulin in ischemic neurotoxicity of rat hippocampus in vitro

Neuroreport ◽  
1997 ◽  
Vol 8 (2) ◽  
pp. 415-418 ◽  
Author(s):  
Xiaofeng Sun ◽  
Cheolsu Shin ◽  
Anthony J. Windebank
Keyword(s):  
Rat Hippocampus
Sign in / Sign up

Export Citation Format

Share Document