Backpropagating action potentials in neurones: measurement, mechanisms and potential functions
نویسندگان
چکیده
منابع مشابه
Inhibition of backpropagating action potentials in mitral cell secondary dendrites.
The mammalian olfactory bulb is a geometrically organized signal-processing array that utilizes lateral inhibitory circuits to transform spatially patterned inputs. A major part of the lateral circuitry consists of extensively radiating secondary dendrites of mitral cells. These dendrites are bidirectional cables: they convey granule cell inhibitory input to the mitral soma, and they conduct ba...
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It was thought previously that cardiac muscle gap junctions provide low-resistance connections between cells and permit the local-circuit current to flow. Some evidences show that myocardial cells may not require low-resistance connections for successful propagation of the action potential (AP). It seems that some other types of mechanisms must be involved in AP propagation. In this article, we...
متن کاملThe Different Mechanisms of Action Potential Propagation in the Heart
It was thought previously that cardiac muscle gap junctions provide low-resistance connections between cells and permit the local-circuit current to flow. Some evidences show that myocardial cells may not require low-resistance connections for successful propagation of the action potential (AP). It seems that some other types of mechanisms must be involved in AP propagation. In this article, we...
متن کاملDifficulties Associated with the Study of Action Potential After-potentials in Rat Cultured Sensory Neurones
29 Abstract: We investigated the properties of action potential after-potentials in cultured dorsal root ganglion neurones from neonatal rats using the whole cell patch clamp technique. The aims of this study were to characterize after-potentials and investigate the possible influences of Ca-induced Ca release (CICR) on neuronal excitability. The reversal potentials of action potential afterdep...
متن کاملSomatic spikes regulate dendritic signaling in small neurons in the absence of backpropagating action potentials.
Somatic spiking is known to regulate dendritic signaling and associative synaptic plasticity in many types of large neurons, but it is unclear whether somatic action potentials play similar roles in small neurons. Here we ask whether somatic action potentials can also influence dendritic signaling in an electrically compact neuron, the cerebellar stellate cell (SC). Experiments were conducted i...
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ژورنال
عنوان ژورنال: Progress in Biophysics and Molecular Biology
سال: 2005
ISSN: 0079-6107
DOI: 10.1016/j.pbiomolbio.2004.06.009