Quadratic Sinusoidal Analysis of Neurons in Voltage Clamp

Details Quadratic Sinusoidal Analysis of Neurons in Voltage Clamp Quadratic Sinusoidal Analysis of Neurons in Voltage Clamp

2010-07-06

arxiv.org/abs/1007.0858v1

Biology

Quantitative Biology

Neurons and Cognition

Scientific paper

Nonlinear biophysical properties of individual neurons are known to play a major role in the nervous system. Earlier electrophysiological studies have made use of piecewise linear characterization of voltage clamped neurons, which consists of a sequence of linear admittances computed at different voltage levels. In this paper, the linear approach is extended to a piecewise quadratic characterization in two different ways. First, an analytical model is derived with power series following the work pionneered by Fitzhugh. Second, matrix calculus is developed to provide a novel quantitative analysis not dependent on differential equations. This method provides an assessment of quadratic responses for both data recorded from individual neurons and their corresponding models.

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