A method for calculating current source density (CSD) analysis without resorting to recording sites outside the sampling volume.

Title

A method for calculating current source density (CSD) analysis without resorting to recording sites outside the sampling volume.

Creator

Vaknin G; DiScenna P G; Teyler T J

Publisher

Journal of neuroscience methods

Date

1988
1988-06

Description

This article is part of a study on cortical microcircuitry in which flash evoked potentials (FEPs) were recorded from the anesthetized rat visual cortex. The FEPs were subjected to current source density analysis (CSD). One of the limitations of the CSD method is the need for recording sites outside the sampling volume, in order to obtain a full description of the CSD distribution. This problem is acute in the neocortex where a tissue/fluid boundary exists. A simple solution is provided based on the fact that the field potentials decay minimally under the conditions of these experiments. In the neocortex the most superficial recording site and the deepest recording site are used to provide the extra recording sites necessary to obtain a full description of the CSD distribution. This approach when tested by summing the current sinks and sources across all layers of cortex produces excellent results, with significant reduction of the residual sinks and sources.

Subject

Animals; Electric Stimulation; Action Potentials; Visual Cortex/*physiology; Neurophysiology/*methods; Photic Stimulation; Models; Neurological

Rights

Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).

Pages

131–135

Issue

2

Volume

24

Citation

Vaknin G; DiScenna P G; Teyler T J, “A method for calculating current source density (CSD) analysis without resorting to recording sites outside the sampling volume.,” NEOMED Bibliography Database, accessed April 20, 2021, https://neomed.omeka.net/items/show/5678.

Social Bookmarking