Low threshold spikes

Low threshold spikes

Low-threshold spikes (LTS) refere to action potentials generated from a membrane potential negative to that for sodium spike threshold (firing level). These LTS's were originally observed in inferior olive neurons (Llinas and Yarom 1981) and then in thalamic neurons (Llinas and Janhsen 1982). They are supported by calcium currents following the activation of T-type calcium channel.

References

* Llinas, R. and Yarom, Y. (1981) "Properties and distribution of ionic conductances generating electroresponsiveness of mammalian inferior olivary neurones in vitro". J. Physiol. (London) 315: 569-584.
* Llinas, R. and Janhsen, H. (1982) " Electrophysiology of mammalian thalamic neurons in vitro". Nature 297: 406-408, 1982.


Wikimedia Foundation. 2010.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • Rodolfo Llinás — Infobox Scientist image width = 150px name = Rodolfo Llinás birth date = 1934 birth place = Bogotá, Colombia death date = death place = residence = New York City, New York, United States citizenship = American field = Neuroscience work… …   Wikipedia

  • Subthreshold membrane potential oscillations — Articleissues cleanup = December 2007 expert = Neuroscience technical = December 2007 Neurons display, beyond synaptic and action potentials, rhythmic subthreshold membrane potential oscillations (a particular type of neural oscillations). These… …   Wikipedia

  • Collision cascade — A classical molecular dynamics computer simulation of a collision cascade in Au induced by a 10 keV Au self recoil. This is a typical case of a collision cascade in the heat spike regime. Each small sphere illustrates the position of an atom, in… …   Wikipedia

  • environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …   Universalium

  • Action potential — In physiology, an action potential is a short lasting event in which the electrical membrane potential of a cell rapidly rises and falls, following a consistent trajectory. Action potentials occur in several types of animal cells, called… …   Wikipedia

  • End-plate potential — Miniature end plate potentials and end plate spikes recorded from muscle fiber End plate potentials (EPPs) (sometimes called end plate spikes ) are the depolarizations of skeletal muscle fibers caused by neurotransmitters binding to the… …   Wikipedia

  • Dendritic spike — Figure A. shows the idealized phases of an action potential. Figure B. is a recording of an actual action potential N.B. Actual recordings of action potentials are often distorted compared to the schematic view because of variations in… …   Wikipedia

  • radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …   Universalium

  • Constant false alarm rate — (CFAR) detection refers to a common form of adaptive algorithm used in radar systems to detect target returns against a background of noise, clutter and interference. Other detection algorithms are not adaptive. Non adaptive detectors are… …   Wikipedia

  • Economic Affairs — ▪ 2006 Introduction In 2005 rising U.S. deficits, tight monetary policies, and higher oil prices triggered by hurricane damage in the Gulf of Mexico were moderating influences on the world economy and on U.S. stock markets, but some other… …   Universalium

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”