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دسته بندی:
شبکه های نورونی - neuron-networks
سال انتشار:
2020
عنوان انگلیسی مقاله:
Differential Organization of Intrinsic Membrane Properties of Central Vestibular Neurons and Interaction With Network Properties
ترجمه فارسی عنوان مقاله:
سازمان دیفرانسیل خصوصیات غشایی ذاتی نورونهای مرکزی وستیبولار و تعامل با خصوصیات شبکه
منبع:
Sciencedirect - Elsevier - The Senses: A Comprehensive Reference, Second Edition, 2020 1-17. 10.1016/B978-0-12-809324-5.24142-4
نویسنده:
Mathieu Beranecka and Franc¸ ois M Lambertb
چکیده انگلیسی:
Intrinsic cellular properties are the electroresponsive features that give neurons their pacemaker activity, basic excitability and resonance,
in the absence of synaptic stimulation or neuromodulation. Since the first extracellular recordings of central vestibular
neurons in the second half of the 20th century, electrophysiologists noted the presence of a tonic resting activity in the absence
of external stimulation or movement. Early intracellular recordings performed in vitro, revealed the existence of different subpopulations
of neurons. Among the different model systems, frog whole brains provide many experimental advantages to disentangle
the intrinsic membrane properties from synaptic properties, and assisted in the understanding of the respective insertion of separate
subpopulations into local networks. In this animal model, two distinct subtypes inserted into both, vestibulo-ocular and vestibulospinal
pathways and similar vestibular inputs were described. Their respective intrinsic properties confer to them specific filter properties
and each subpopulation is differentially inserted into local networks. Since all other vertebrates are also confronted with the
problem of transforming and coding a vast range of body motion dynamics, separate frequency-tuned pathways for vestibulomotor
signals appears to be a common, general feature underlying vestibular information processing in vertebrates. Using the
frog as a model, we present the partition of rodent/guinea pig vestibular neurons into functionally equivalent subpopulations of
type A and type B neurons, and review the current understanding about their neurochemical identity, insertion into local networks
along with the ontogenetic, synaptic and intrinsic plastic properties.
قیمت: رایگان
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