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Título

Statistical geometric affinity in human brain electric activity

Autor Chornet Lurbe, María Antonia; Oteo, José Ángel; Ros Pallarés, José
Palabras clave Electroencephalography
Sleep
Neurophysiology
Bioelectric phenomena
Lacunarity
Brain
Statistical analysis
[PACS] Neuroscience (higher organisms)
[PACS] Time series analysis (nonlinear dynamical systems)
Fecha de publicación may-2007
EditorAmerican Physical Society
Citación Physical Review E 75: 051918 (2007)
ResumenThe representation of the human electroencephalogram (EEG) records by neurophysiologists demands standardized time-amplitude scales for their correct conventional interpretation. In a suite of graphical experiments involving scaling affine transformations we have been able to convert electroencephalogram samples corresponding to any particular sleep phase and relaxed wakefulness into each other. We propound a statistical explanation for that finding in terms of data collapse. As a sequel, we determine characteristic time and amplitude scales and outline a possible physical interpretation. An analysis for characteristic times based on lacunarity is also carried out as well as a study of the synchrony between left and right EEG channels.
Descripción 10 pages, 9 figures.-- PACS nrs.: 87.19.La; 05.45.Tp.-- ISI Article Identifier: 000246890100105
Versión del editorhttp://dx.doi.org/10.1103/PhysRevE.75.051918
URI http://hdl.handle.net/10261/9062
DOI10.1103/PhysRevE.75.051918
ISSN1539-3755
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