Thalamocortical oscillations
نویسندگان
چکیده
منابع مشابه
What Stops Synchronized Thalamocortical Oscillations?
Slow-wave sleep as well as generalized absence seizures are characterized by the occurrence of synchronized oscillations in thalamocortical systems that spontaneously appear and disappear. The spontaneous appearance of synchronized oscillations results from the initiation by one or a small number of cells followed by the progressive recruitment of large numbers of neighboring neurons into the s...
متن کاملMechanisms and Biological Role of Thalamocortical Oscillations
Oscillatory activity is an emerging property of thalamocortical system. The patterns and the dominant frequencies of these oscillations depend on the functional state of the brain. Normal oscillatory activities include slow (0.1-15 Hz, present mainly during slow-wave sleep or anesthesia), fast (20-60 Hz) and ultra-fast (100-600 Hz) activities. The fast and ultra-fast activities may be present i...
متن کاملThalamocortical Oscillations in Sleep and Wakefulness
metric representation and tedious parameter estimation, the BPNN probabilistic modeling gives a more relaxed and more reliable solution, as evidenced by successful application to textured image modeling and segmentation of both artificial and real-world textures. It can be argued that the proposed BPNN modeling approach requires more parameters (interconnection weights of the BPNN) than the num...
متن کاملBrainstem Influence on Thalamocortical Oscillations during Anesthesia Emergence
Theories of mechanisms that impair or prevent consciousness during anesthesia that are related to thalamocortical oscillations have been proposed. Many methods of EEG analysis have been proposed as measures of anesthetic effects but only a few have potential to provide measures of those anesthetic effects that are directly related to thalamocortical oscillations. Some of these methods will be e...
متن کاملEffects of Inhibitory Synaptic Current Parameters on Thalamocortical Oscillations
6 We explore the role of specific GABAergic current conductance and decay 7 time in specific inhibitory synapses in driving macroscopic cortical 8 oscillations based on two computational neuron models. Simulations using a 9 previously established thalamocortical network model demonstrate that: 1) 10 oscillation frequency changes due to increased inhibitory conductance are 11 dependent on post-s...
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ژورنال
عنوان ژورنال: Scholarpedia
سال: 2006
ISSN: 1941-6016
DOI: 10.4249/scholarpedia.1319