
Percentage (±SEM) of wake, non-REM, and REM sleep in lesioned and nonlesioned rats. The line graphs summarize the average
in 4 h blocks over the 24 h period with the data double-plotted to illustrate the diurnal rhythm of the sleep–wake cycle.
The crescent moon symbols represent the 12 h dark cycle. The bar graphs on the right summarize the data during the 12 h day
and night cycles. *p < 0.01 versus triple-lesioned rats (post hoc significance after one-way ANOVA); **p < 0.05 versus double- and triple-lesioned rats (post hoc after one-way ANOVA);
p < 0.05 versus double lesion (post hoc after one-way ANOVA).




