Answers are grounded in this paper and cite their sources.
An ultradian rhythm in waking performance on the order of 100 min. was hypothesized based on the period of the rapid eye-movement—non-rapid eye-movement intrasleep cycle. Errors on a visual continuous performance task (signal detection) over 6 hr. were analyzed for 19 Ss. Data analysis by fitting sinusoidal curves showed a peak at the expected frequency of 100 min.
No takes yet. Share an insight, caveat, or question.
Globus et al. (1971) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: