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Literature DB >> 1281310

Measurement of cell impedance in frequency domain using discontinuous current clamp and white-noise-modulated current injection.

Abstract

A method is described for the determination of cellular input impedance of non-spiking neurones. The input impedance is important when cellular geometry and the effects of voltage-dependent channels are considered. Cells are impaled with a single glass microelectrod and current is injected using a time-sharing technique. The cell's impedance is measured by randomly modulating the injected current and calculating the impedance as a transfer function between current and recorded membrane voltage. Corresponding coherence functions can also be calculated for estimating the signal-to-noise ratio, and also linearity (i.e. possible activation of voltage-dependent conductances) of the membrane.

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Year: 1992 PMID： 1281310 DOI： 10.1007/BF00370258

Source DB: PubMed Journal: Pflugers Arch ISSN： 0031-6768 Impact factor: 3.657

12 in total

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Authors: W A Wilson; M M Goldner
Journal: J Neurobiol Date: 1975-07

2. Evidence for voltage-activated outward currents in the neuropilar membrane of locust nonspiking local interneurons.

Authors: G Laurent
Journal: J Neurosci Date: 1991-06 Impact factor: 6.167

3. Novel potassium channels encoded by the Shaker locus in Drosophila photoreceptors.

Authors: R C Hardie; D Voss; O Pongs; S B Laughlin
Journal: Neuron Date: 1991-03 Impact factor: 17.173

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Authors: D Poussart; L E Moore; H M Fishman
Journal: Ann N Y Acad Sci Date: 1977-12-30 Impact factor: 5.691

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Authors: R Brennecke; B Lindemann
Journal: Rev Sci Instrum Date: 1974-05 Impact factor: 1.523

6. Voltage dependence of membrane properties of trigeminal root ganglion neurons.

Authors: E Puil; B Gimbarzevsky; R M Miura
Journal: J Neurophysiol Date: 1987-07 Impact factor: 2.714

7. Ion conductances of the surface and transverse tubular membranes of skeletal muscle.

Authors: L E Moore; T D Tsai
Journal: J Membr Biol Date: 1983 Impact factor: 1.843

8. Theory and operation of a single microelectrode voltage clamp.

Authors: A S Finkel; S Redman
Journal: J Neurosci Methods Date: 1984-06 Impact factor: 2.390

9. Coherence improvement in white noise analysis by the use of a repeated random sequence generator.

Authors: A S French
Journal: IEEE Trans Biomed Eng Date: 1980-01 Impact factor: 4.538

10. Voltage-activated potassium channels in blowfly photoreceptors and their role in light adaptation.

Authors: M Weckström; R C Hardie; S B Laughlin
Journal: J Physiol Date: 1991 Impact factor: 5.182

13 in total

1. Sexual dimorphism matches photoreceptor performance to behavioural requirements.

Authors: E P Hornstein; D C O'Carroll; J C Anderson; S B Laughlin
Journal: Proc Biol Sci Date: 2000-10-22 Impact factor: 5.349

2. Voltage-clamp-controlled current-clamp recordings from neurons: an electrophysiological technique enabling the detection of fast potential changes at preset holding potentials.

Authors: Bernd Sutor; Christina Grimm; Hans-Reiner Polder
Journal: Pflugers Arch Date: 2003-02-12 Impact factor: 3.657

Measurement of cell impedance in frequency domain using discontinuous current clamp and white-noise-modulated current injection.

1. Voltage clamping with a single microelectrode.

2. Evidence for voltage-activated outward currents in the neuropilar membrane of locust nonspiking local interneurons.

3. Novel potassium channels encoded by the Shaker locus in Drosophila photoreceptors.

4. Ion movements and kinetics in squid axon I. Complex admittance.

5. Design of a fast voltage clamp for biological membranes, using discontinuous feedback.

6. Voltage dependence of membrane properties of trigeminal root ganglion neurons.

7. Ion conductances of the surface and transverse tubular membranes of skeletal muscle.

8. Theory and operation of a single microelectrode voltage clamp.

9. Coherence improvement in white noise analysis by the use of a repeated random sequence generator.

10. Voltage-activated potassium channels in blowfly photoreceptors and their role in light adaptation.

1. Sexual dimorphism matches photoreceptor performance to behavioural requirements.

2. Voltage-clamp-controlled current-clamp recordings from neurons: an electrophysiological technique enabling the detection of fast potential changes at preset holding potentials.

3. Transfer of graded potentials at the photoreceptor-interneuron synapse.

Review 4. Insect photoreceptor adaptations to night vision.

5. Membrane filtering properties of the bumblebee (Bombus terrestris) photoreceptors across three spectral classes.

6. Recording from cuticular mechanoreceptors during mechanical stimulation.

7. Light adaptation in Drosophila photoreceptors: I. Response dynamics and signaling efficiency at 25 degrees C.

8. Characterization of a transient outward current in a rapidly adapting insect mechanosensory neuron.

9. White noise analysis of a chromatic type horizontal cell in the Xenopus retina.

10. Fly photoreceptors demonstrate energy-information trade-offs in neural coding.