Figure 7
Effect of 24-h local stimulation of ChrimsonR containing neurons in the cerebral cortex with 400-ms 629-nm light pulses at 0.6 Hz on sleep pattern. No significant differences in the amounts of wakefulness, NREM sleep and REM sleep calculated in 3-h intervals between the baseline and stimulation day were found. Number and duration of sleep bouts also did not change significantly. However, an increase in the amounts of NREM sleep and reduction in the amounts of wakefulness were observed during the 12-h light on period. White background indicates light periods, and grey background indicates dark periods. *p < 0.05.
