Search results for "Ephaptic coupling"

showing 2 items of 2 documents

Ephaptic coupling of myelinated nerve fibers

2001

Numerical predictions of a simple myelinated nerve fiber model are compared with theoretical results in the continuum and discrete limits, clarifying the nature of the conduction process on an isolated nerve axon. Since myelinated nerve fibers are often arranged in bundles, this model is used to study ephaptic (nonsynaptic) interactions between impulses on parallel fibers, which may play a functional role in neural processing.

Functional roleMaterials scienceMyelinated axonEphaptic couplingMyelinated nerve fiberNeural processingStatistical and Nonlinear PhysicsCondensed Matter PhysicsA delta fiberNeuroscienceNerve axonPhysica D: Nonlinear Phenomena
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Metabolic aspects of the rhythmogenesis inAplysia pacemaker neurons

1973

Completely isolatedAplysia pacemaker neurons were used to investigate mechanisms of endogenous electrical rhythmicity. This preparation allows the study of pure pacemaker activity free from synaptic, ephaptic and/or humoral influences from the surrounding cells. The effect of some substances quite different in their mode of biochemical action were tested: sodium iodoacetate, phloridzin, dinitrophenol, heavy water, and ouabain. Each of these substances suppressed the spontaneous spike activity without any marked depolarizing or hyperpolarizing effect. Spontaneous spike activity of the neurons silenced after addition of one of these substances reappeared after addition of glucose. The restori…

Periodicitymedicine.medical_specialtyPhysiologyEphaptic couplingClinical BiochemistryAction PotentialsIodoacetatesEndogenyBiologyOuabainAdenosine TriphosphateATP hydrolysisPhysiology (medical)Internal medicinemedicineAnimalsGlycolysisOuabainNeuronsHydrolysisSodiumDepolarizationDeuteriumbiology.organism_classificationCell biologyGlucosePhlorhizinEndocrinologyMolluscaAplysiaDinitrophenolGlycolysisDinitrophenolsmedicine.drugPflügers Archiv
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