The First Cortical Implant of a Semiconductor Multielectrode Array: Continued Data Analysis.
Abstract
Previous research conducted at the Air Force Institute of Technology (AFIT), collected and partially analyzed data from a multielectrode array implanted on the visual cortex of a dog's brain. The work presented in this thesis is the completion of this data analysis. Electroencephalogram (EEG) recordings were made and Visual Evoked Response (VER) techniques were used on most of the data. The EEG strip chart recordings display evidence of low frequency alpha waves, thus indicating that the semiconductor array implant is a suitable method for extracting brain data. Summation/averaging of the data from individual electrodes illustrate that the strobe stimulus leaked into the data collection circuitry. There is evidence that the dog probably became accustomed to the strobe signals and also that the AFIT array showed signs of degradation while implanted on the cortex. A possible evoked response was found during the latter days of testing, but because of the suspected deterioration of the AFIT array, this cannot be held as certain. Included are recommendations on how the next family of AFIT multi-electrode array IC's data collection and analysis should be conducted. Originator supplied keywords include: Bionies; Electroencephaography (EEG); and Visual evoked response (VER).
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1984
- Accession Number
- ADA151699
Entities
People
- D. B. Mahoney
- J. D. Collier
Organizations
- Air Force Institute of Technology