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. Author manuscript; available in PMC: 2011 May 11.
Published in final edited form as: Curr Biol. 2010 Apr 22;20(9):850–855. doi: 10.1016/j.cub.2010.03.027

Figure 3. Protocol for collection of subjective reports.

Figure 3

“Repeated Awakenings” participants (n=52) were interrupted for reporting during the sleep onset period, and provided a total of three verbal reports during the post-training Sleep/Wake period. “Questionnaire Protocol” participants (n=47) were not interrupted during sleep onset, and instead provided only one verbal report at the end of the nap, in addition to completing a questionnaire regarding task-related mentation at the end of the study. Total sleep time (TST) did not differ between these participant subsets (p>.3).