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Results of the statistical analysis. In the top row the W, REM, and SWS mean histograms for each rat in Fig. 3 are overlapped (in every case, the REM response lies between the W and SWS responses). (Inset) The three areas (B/, B−, and C/) that were measured and compared. The bar graphs give the percent difference between the sleep and W areas. During sleep, the increases in both the B/and B− areas of the histogram are highly significant for all animals.
