Intrinsic neuronal properties of the chick nucleus angularis.

Intrinsic neuronal properties of the chick nucleus angularis.
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鸡角核的内在神经元特性。

DOI:
10.1152/jn.2002.88.1.152
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发表时间:
2002
影响因子:
2.5
通讯作者:
Carr,CatherineE
Carr,CatherineE
中科院分区:
医学3区
文献类型:
--
作者:
Soares,Daphne;Chitwood,RaymondA;Hyson,RichardL;Carr,CatherineE

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在体外全细胞记录揭示内在的放电特性和单细胞形态在耳蜗角状核(NA)的鸡。我们将神经元分为三大类:单棘、阻尼和强直。在超极化注射期间,在所有类别中观察到延迟内向整流电流。单棘神经元对去极化电流注入的反应是单棘,并有小的放射状树突树。阻尼神经元在正电流注入开始时仅以几个尖峰响应。更多的正电流输入导致阻尼响应。阻尼细胞树突的平面取向平行于等轴NA。紧张性细胞产生的动作电位列车响应于去极化电流注入。三种变化的紧张型多极形态,与树突的方向是径向(I和III)或垂直于tonotopic轴(II;垂直)。强直I和强直III的动作电位下冲形状不同。因此,NA在生理学和形态学上都是异质的。
In vitro whole cell recording revealed intrinsic firing properties and single-cell morphology in the cochlear nucleus angularis (NA) of the chick. We classified three major classes of neurons: one-spike, damped, and tonic. A delayed inward rectifying current was observed in all classes during hyperpolarization injections. One-spike neurons responded with a single spike to depolarizing current injection and had small (stubby) radiate dendritic trees. Damped neurons responded with only a few spikes at the onset of positive current injection. More positive current inputs led to a damped response. Damped cell dendrites had a planar orientation parallel to the isofrequency axis in NA. Tonic cells produced trains of action potentials in response to a depolarizing current injection. Three variations of the tonic type had multipolar morphology, with dendrites oriented either radially (I and III) or perpendicular to the tonotopic axis (II; vertical). Tonics I and III differed in the shape of their action potential undershoot. Thus NA is both physiologically and morphologically heterogeneous.
DOI: 10.1002/cne.901640403
发表时间: 1975-01-01
影响因子: 2.5
作者:
RUBEL, EW;PARKS, TN
通讯作者: PARKS, TN
DOI: 10.1113/jphysiol.1994.sp020346
发表时间: 1994
期刊: The Journal of physiology
影响因子: --
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Zhang,S;Trussell,LO
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DOI: --
发表时间: 2001
期刊: The Journal of comparative neurology
影响因子: --
作者:
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发表时间: 1999-03
期刊: The Journal of Neuroscience
影响因子: --
作者:
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通讯作者: P. Kanold;P. Manis
DOI: --
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期刊:
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