Figure 1From: Sleep architecture and cognitive changes in olanzapine-treated patients with depression: A double blind randomized placebo controlled trial Latency to slow wave sleep and percentage of slow wave sleep. A) Mean ± standard error of the mean for latency to slow wave sleep (SWS) in minutes, for both olanzapine- and placebo-treated groups for each time. B) Percentage of SWS measured by ratio of SWS within total sleep time (TST) in minutes. *p = 0.024 between placebo and olanzapine groups on Day 28–31.Back to article page