中国科学院上海生命科学研究院神经科学研究所机构知识库
Advanced  
SIBS OpenIR  > 神经所(总)  > 期刊论文
Title: Corticofugal modulation of the auditory thalamic reticular nucleus of the guinea pig
Author: Xu, Min ; Liu, Chun Hua ; Xiong, Ying ; He, Jufang
Source: JOURNAL OF PHYSIOLOGY-LONDON
Issued Date: 2007
Volume: 585, Issue:1, Pages:15-28
Keyword: MEDIAL GENICULATE-BODY ; THALAMOCORTICAL NEURONS ; IN-VITRO ; CORTICOTHALAMIC PROJECTIONS ; FUNCTIONAL-PROPERTIES ; EVOKED OSCILLATIONS ; CORTICAL ACTIVATION ; CAT ; CORTEX ; BURST
Subject: Neurosciences & Neurology ; Physiology
Corresponding Author: He, JF (reprint author), Hong Kong Polytech Univ, Dept Rehabil Sci, Kowloon, Hong Kong, Peoples R China,rsjufang@polyu.edu.hk
English Abstract: Neuronal responses to auditory stimuli and electrical stimulation were examined in 104 neurones in the auditory sector of thalamic reticular nucleus (TRN) and nine medial geniculate (MGB) neurones from anaesthetized guinea pigs. TRN neurones showed rhythmic spontaneous activities. TRN neurones changed firing pattern over time, from tonic to burst in a time interval of several seconds to tens of seconds. One-third of the TRN neurones (25/76) responded to the acoustic stimulus in a slow oscillation mode, either producing a spike burst at one time and responded with nothing another time, or producing a spike burst at one time and a single spike at the other. Thirty-two of 40 neurones received a corticofugal modulation effect. Nineteen of 32 neurones responded directly to electrical stimulation of the cortex with an oscillation of the same rhythm (7-14 Hz) as its auditory-evoked oscillation. Six neurones changed their firing pattern from burst to tonic when the auditory cortex was activated. As the TRN applied inhibition to the MGB, the oscillatory nature of inhibition would affect the fidelity of MGB relays. Thus, it was unlikely that the MGB was in relay mode when the TRN was in a slow oscillation mode. These results hint at a possible mechanism for the modulation of states of vigilance through the corticofugal pathway via the TRN.
Indexed Type: sci
Language: 英语
Content Type: 期刊论文
URI: http://ir.sibs.ac.cn/handle/331001/1748
Appears in Collections:神经所(总)_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Xu-2007-Corticofugal modulat.pdf(1181KB)----开放获取View Download

Recommended Citation:
Xu, Min; Liu, Chun Hua; Xiong, Ying; He, Jufang.Corticofugal modulation of the auditory thalamic reticular nucleus of the guinea pig,JOURNAL OF PHYSIOLOGY-LONDON,2007,585(1):15-28
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Xu, Min]'s Articles
[Liu, Chun Hua]'s Articles
[Xiong, Ying]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Xu, Min]‘s Articles
[Liu, Chun Hua]‘s Articles
[Xiong, Ying]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: Xu-2007-Corticofugal modulat.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!