- Gerold Baier, Thomas Hermann (2004)
In Barrass, Stephen and Vickers, Paul (Ed.) Proceedings of the International Conference on Auditory Display (ICAD 2004), International Community for Auditory Display (ICAD), ICAD, Sydney, Australia
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Summary
We use sonification of temporal information extracted from scalp EEG to characterize the dynamic properties of rhythms in certain frequency bands. Sonification proves particularly useful in the simultaneous monitoring of several EEG channels. Our results suggest sonification as an important tool in the analysis of multivariate data with subtle correlation differences.- Sound Example 1: S1 (mp3, 160k)
Spectrally resolved rhythm of a Petit Mal epileptic seizure as recorded by EEG (in real time). - Sound Example 2: S2 (mp3, 320k)
Spectrally resolved rhythms of electrodes Cz (left channel) and F4 (right channel) in a period of 8 minutes preceding a Petit Mal seizure (compressed to 20 sec) - Sound Example 3: S3 (mp3, 320k)
Spectrally resolved rhythms for two groups of channels that differ in their correlation pattern. Sonification as in Sound 2. Group 1 (left channel): electrodes Fp2, Fz, Cz, T5, O1, and O2. Group 2 (right channel): electrodes F4, F7, F8, C4, Pz, and T6 - Sound Example 4:
S4.1 (mp3, 450k)
S4.2 (mp3, 450k)
Two sonifications of correlations within a group of electrodes during the period of 8 minutes preceding a seizure. Rhythmic coincidences are audible as contributions to the harmonics of a given sound. Sound 4.1: group 1 electrodes. Sound 4.2: group 2 electrodes. Contact
Thomas Hermann
The Sonification of Rhythms in Human Electroencephalogram
Media files
Here follow the four sound examples, that are described and discussed in the paper