ArticleJournal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology2009
Calcium spikes in a leech nonspiking neuron.
Article in Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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Who cites it
6 citing papers in PubMed.
- Article
- Intersegmental Interactions Give Rise to a Global Network.Frontiers in neural circuits · 2022Article
- 9-Phenanthrol modulates postinhibitory rebound and afterhyperpolarizing potentials in an excitatory motor neuron of the medicinal leech.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2017Article
- Graded boosting of synaptic signals by low-threshold voltage-activated calcium conductance.Journal of neurophysiology · 2015Article
- Riluzole suppresses postinhibitory rebound in an excitatory motor neuron of the medicinal leech.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2014Article
- Premotor nonspiking neurons regulate coupling among motoneurons that innervate overlapping muscle fiber population.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2009Article
Corrections and comments
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Authors and funding
3 authors.
Funding
Abstract
The NS neurons are nonspiking cells, present as pairs in each midbody ganglion of the leech nervous system, which display a very extensive arborization. They were shown to regulate the coactivation of motoneurons. Here we have investigated the electrophysiological properties of these neurons under the hypothesis that transmission along the extensive neurites requires the aid of voltage-dependent conductances. The results indicate that NS neurons respond to electrical stimulation with a spike-like event, which was not an all-or-none but rather a graded phenomenon that depended on the intensity and duration of the electrical stimulus. The spike-like response was activated at a membrane potential of approximately -50 mV; its amplitude was a logarithmic function of the extracellular Ca2+ concentration and was unaffected by a broad range of changes in the extracellular Na+ concentration; intracellular application of tetraethylammonium (TEA) caused a large increase in its amplitude and duration. These data indicate that NS neurons bear voltage-dependent low-threshold Ca2+ and TEA-sensitive K+ conductances that could contribute to shaping synaptic signals, or transmission along the extensive neuritic tree.
Indexed as
Identifiers
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Registered trials
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