Novel Method of Non-contact Remote Measurement of Neuronal Electrical Activity.

Clicks: 259
ID: 80509
2018
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Abstract
Measuring the electrical potential of a neuron cell currently requires direct contact with the cell surface. This method requires invasive probing and is limited by the deflection of electricity from baseline. From a clinical perspective, the electrical potential of the brain's surface can only be measured to a depth of one centimeter using an electroencephalogram (EEG), however, it cannot measure much deeper structures. In this trial, we attempt a novel method to remotely record the electromagnetic field (EMF) of action potential provoked from hippocampal neurons without contact. A bipolar stimulating electrode was placed in contact with the CA1 region of viable hippocampal slice from donor mice. The specimen was bathed in artifical cerebrospinal fluid (aCSF) to simulate in vivo conditions. This setup was then placed into a magnetic shielded tube. Very low-frequency EMF sensors were used to obtain recordings. The impedance of the aCSF and hippocampal slice were measured after each stimulation individually and in combination. An electromagnetic signal was detected in three out of four scenarios: (a) aCSF alone with electrical stimulus without a hippocampal slice, (b) Hippocampal slice in aCSF without electrical stimulus and, (c) Hippocampal slice in aCSF with an electric stimulus applied. Therefore, our trial suggests that EMFs from neuronal tissue can be recorded through non-invasive non-contact sensors.
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carson2018novelcureus Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Carson, Tyler A;Ghanchi, Hammad;Toor, Harjyot;Majeed, Gohar;Wiginton, James G;Zhang, Yongming;Miulli, Dan E;
Journal Cureus
Year 2018
DOI
10.7759/cureus.3384
URL
Keywords
brain imaging electromagnetic field neuronal stimulation non-invasive imaging

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