Title :
The correlation dimension as an index to differentiate between vigilance states
Author :
Palmer, N.G.M. ; Ning, Taikang ; Bronzino, Joseph D.
Author_Institution :
Hartford Graduate Center, CT, USA
Abstract :
Electrical signals from 90 day old Sprague-Dawley rats were recorded from two regions of the hippocampal formation during four vigilance states. Using these signals the correlation dimension was calculated using the Grassberger-Procaccia algorithm to assess whether this approach is effective in differentiating between the vigilance states. Plots of correlation dimension vs. increased embedding dimension showed that REM and non-REM vigilance states have distinct and different characteristics; and with higher embedding dimension it is possible to differentiate between REM and non-REM vigilance states
Keywords :
electroencephalography; Grassberger-Procaccia algorithm; REM state; Sprague-Dawley rats; correlation dimension; embedding dimension; hippocampal formation; nonREM state; rat brain electrical signals; vigilance states differentiation index; Autocorrelation; Chaos; Computer science; Delay effects; Educational institutions; Electroencephalography; Gain measurement; Nonlinear systems; Rats; Sleep;
Conference_Titel :
Engineering in Medicine and Biology Society, 1994. Engineering Advances: New Opportunities for Biomedical Engineers. Proceedings of the 16th Annual International Conference of the IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-2050-6
DOI :
10.1109/IEMBS.1994.415357
