Kitzmiller JP, Hansford DJ, Fortin LD, Obrietan KH, Bergdall VK, Beversdorf DQ. Micro-field evoked potentials recorded from the porcine sub-dural cortical surface utilizing a microelectrode array.
J Neurosci Methods 2007;
162:155-61. [PMID:
17298849 PMCID:
PMC2223486 DOI:
10.1016/j.jneumeth.2007.01.004]
[Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2006] [Revised: 01/08/2007] [Accepted: 01/08/2007] [Indexed: 11/19/2022]
Abstract
A sub-dural surface microelectrode array designed to detect micro-field evoked potentials has been developed. The device is comprised of an array of 350-microm square gold contacts, with bidirectional spacing of 150 microm, contained within a polyimide Kapton material. Cytotoxicity testing suggests that the device is suitable for use with animal and human patients. Implementation of the device in animal studies revealed that reliable evoked potentials could be acquired. Further work will be needed to determine how these micro-field potentials, which demonstrate selectivity for one eye, relate to the distribution of the ocular dominance columns of the occipital cortex.
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