Theses and Dissertations

Date of Award

5-2017

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Electrical Engineering

First Advisor

Dr. Yoonsu Choi

Second Advisor

Dr. Hasina Huq

Third Advisor

Dr. Wenjie Dong

Abstract

Electrocorticography (ECoG) is a methodology for stable mapping of the brain surface using local field potentials (LFPs) with a wide cortical region, high signal fidelity, and minimal invasiveness to brain tissue. To compare surface ECoG signals with inter-cortical neuronal activity, we fabricated a flexible handcrafted ECoG electrode made with economically available materials. This research is on a Lewis rat implanted with a handcrafted 256-channel, non-penetrative ECoG electrode covering an area of 7mm x 7mm on the cortical surface. This device was placed on the motor and somatosensory cortex of the brain to record signals with an active animal. The recordings are acquired by using the Synapse Software and the Tucker-Davis Technologies acquisition system to monitor and analyze electrophysiological signals within the amplitude range of 200µV for local field potentials. This demonstrates how reactive channels and their spatiotemporal and frequency-specific characteristics can be identified by means of this method.

Comments

Copyright 2017 Mukhesh Kumar Koripalli. All Rights Reserved.

https://www.proquest.com/dissertations-theses/high-density-micro-electrocorticography-device/docview/1964958950/se-2?accountid=7119

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