Abstract
An experiment was conducted to map the 3D electroencephalogram (EEG) rhythms using the Zero-Crossings analysis (ZCA) method. The EEGs of five healthy volunteers were recorded during relaxed eye-closed state with flash light stimulation. These EEG signals were filtered for the alpha band using a fast Fourier transform based digital filter. From threshold Zero-Crossing points, periodic intervals of the alpha waves were determined and converted to instantaneous frequencies. The spatial dynamics of the alpha rhythm during flash stimulation using over-minute recordings were observed. It was found that 3D-EEG rhythm mapping is useful in the investigation of cortical structures and the interaction of the underlying rhythmic activity.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1536-1539 |
| Number of pages | 4 |
| Journal | Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings |
| Volume | 4 |
| State | Published - 1997 |
| Event | Proceedings of the 1997 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Chicago, IL, USA Duration: Oct 30 1997 → Nov 2 1997 |
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