NDLI: Sound-specific plasticity in the primary auditory cortex as induced by the cholinergic pedunculopontine tegmental nucleus.

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Sound-specific plasticity in the primary auditory cortex as induced by the cholinergic pedunculopontine tegmental nucleus.

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Sound-specific plasticity in the primary auditory cortex as induced by the cholinergic pedunculopontine tegmental nucleus.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Luo, Feng Yan, Jun
Description	Country affiliation: China Author Affiliation: Luo F ( Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, Hubei, China. fluocn@gmail.com)
Abstract	Brain cholinergic modulation is essential for learning-induced plasticity of the auditory cortex. The pedunculopontine tegmental nucleus (PPTg) is an important cholinergic nucleus in the brainstem, and appears to be involved in learning and subcortical plasticity. This study confirms the involvement of the PPTg in the plasticity of the auditory cortex in mice. We show here that electrical stimulation of the PPTg paired with a tone induced drastic changes in the frequency tunings of auditory cortical neurons. Importantly, the changes in frequency tuning were highly specific to the frequency of the paired tone; the best frequency of auditory cortical neurons shifted towards the frequency of the paired tone. We further demonstrated that such frequency-specific plasticity was largely eliminated by either thalamic or cortical application of the muscarinic acetylcholine receptor antagonist atropine. Our finding suggests that the PPTg significantly contributes to auditory cortical plasticity via the auditory thalamus and cholinergic basal forebrain.
File Format	HTM / HTML
ISSN	0953816X
Issue Number	3
Volume Number	37
e-ISSN	14609568
Journal	European Journal of Neuroscience
Language	English
Publisher	Wiley-Blackwell
Publisher Date	2013-02-01
Publisher Place	France
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Neuroscience Auditory Cortex Physiology Cholinergic Neurons Neuronal Plasticity Pedunculopontine Tegmental Nucleus Acoustic Stimulation Animals Atropine Pharmacology Electric Stimulation Evoked Potentials, Auditory Female Mice Mice, Inbred C57bl Muscarinic Antagonists Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Neuroscience

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