Coherent oscillations and short-term plasticity in corticothalamic networks
- PMID: 10407416
- DOI: 10.1016/s0166-2236(99)01407-1
Coherent oscillations and short-term plasticity in corticothalamic networks
Abstract
The neocortex and thalamus are a unified oscillatory machine. Different types of brain rhythms, which characterize various behavioral states, are combined within complex wave-sequences. During the stage of sleep that is associated with low-frequency and high-amplitude brain rhythms, the excitatory component of a cortically generated slow oscillation is effective in triggering thalamically generated rhythms and in increasing their spatiotemporal coherence over widespread territories. Thus, the study of coherent oscillations, as they appear naturally during states of vigilance in animals and humans, requires intact-brain preparations in which the neocortex and thalamus engage in a permanent dialog. Sleep oscillations are associated with rhythmic spike-bursts or spike-trains in thalamic and cortical neurons, which lead to persistent excitability changes consisting of increased depolarizing responses and decreased inhibitory responses. These short-term plasticity processes could be used to consolidate memory traces acquired during wakefulness, but can also lead to paroxysmal (hypersynchronous) episodes, similar to those observed in some epileptic seizures.
Similar articles
-
Neuronal plasticity in thalamocortical networks during sleep and waking oscillations.Neuron. 2003 Feb 20;37(4):563-76. doi: 10.1016/s0896-6273(03)00065-5. Neuron. 2003. PMID: 12597855 Review.
-
Synchronized activities of coupled oscillators in the cerebral cortex and thalamus at different levels of vigilance.Cereb Cortex. 1997 Sep;7(6):583-604. doi: 10.1093/cercor/7.6.583. Cereb Cortex. 1997. PMID: 9276182 Review.
-
Impact of network activities on neuronal properties in corticothalamic systems.J Neurophysiol. 2001 Jul;86(1):1-39. doi: 10.1152/jn.2001.86.1.1. J Neurophysiol. 2001. PMID: 11431485 Review.
-
Active neocortical processes during quiescent sleep.Arch Ital Biol. 2001 Feb;139(1-2):37-51. Arch Ital Biol. 2001. PMID: 11256186 Review.
-
Grouping of brain rhythms in corticothalamic systems.Neuroscience. 2006;137(4):1087-106. doi: 10.1016/j.neuroscience.2005.10.029. Epub 2005 Dec 15. Neuroscience. 2006. PMID: 16343791 Review.
Cited by
-
Sleep spindle maturity promotes slow oscillation-spindle coupling across child and adolescent development.Elife. 2023 Nov 24;12:e83565. doi: 10.7554/eLife.83565. Elife. 2023. PMID: 37999945 Free PMC article.
-
Spontaneous α Brain Dynamics Track the Episodic "When".J Neurosci. 2023 Oct 25;43(43):7186-7197. doi: 10.1523/JNEUROSCI.0816-23.2023. Epub 2023 Sep 13. J Neurosci. 2023. PMID: 37704373 Free PMC article.
-
A systematic review of the prediction of consumer preference using EEG measures and machine-learning in neuromarketing research.Brain Inform. 2022 Nov 14;9(1):27. doi: 10.1186/s40708-022-00175-3. Brain Inform. 2022. PMID: 36376735 Free PMC article. Review.
-
Global Workspace Theory (GWT) and Prefrontal Cortex: Recent Developments.Front Psychol. 2021 Nov 10;12:749868. doi: 10.3389/fpsyg.2021.749868. eCollection 2021. Front Psychol. 2021. PMID: 34899489 Free PMC article. No abstract available.
-
Deafness Weakens Interareal Couplings in the Auditory Cortex.Front Neurosci. 2021 Jan 21;14:625721. doi: 10.3389/fnins.2020.625721. eCollection 2020. Front Neurosci. 2021. PMID: 33551733 Free PMC article.
Publication types
MeSH terms
LinkOut - more resources
Full Text Sources