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Neural signal processing of mfVEP responses from AMD patients

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4 Author(s)

Normal healthy subjects and AMD patients were recorded using 64 EEG channels with a computer based acquisition systems using a pattern-pulse mfVEP. A correctly sized head cap (10/20 layout), was placed over the subjects’ head. The Fpz electrode holder was placed directly on the 10% nasion-inion mark. The data are simultaneously sampled at 256 Hz per channel, and collected using the ActiveTwo BioSemi data acquisition software.The Active Ag-AgCl electrodes mounted on the head cap was connected to the Biosemi A/D interface box. The stimulus layout was an 84 region per eye cortically-scaled dartboard comprising 12 sectors and 7 concentric rings, subtending a diameter of 23°; presented dichoptically at 60 Hz frame rate. The 64 electrode channels were held in place with a head cap with a 10/20 layout. Regression models accounting for independent effects were estimated. The Pattern-pulse mfVEP technique is able to record from patients with advance stage AMD.

Published in:

Information Technology, 2008. ITSim 2008. International Symposium on  (Volume:4 )

Date of Conference:

26-28 Aug. 2008