While little research has been conducted on the impact of sleep deprivation on divergent thinking, one study by J.A. Horne illustrated that even when motivation to perform well is maintained, sleep can still impact divergent thinking performance. In this study, twelve subjects were deprived of sleep for thirty-two hours, while a control group of twelve others maintained normal sleep routine.
The absence of extensive research on the effects of sleep deprivation on divergent thinking is evident, but J.A. Horne's study sheds light on this topic. In his investigation, twelve subjects were subjected to prolonged wakefulness for thirty-two hours, while a control group of twelve others maintained their usual sleep schedule.