"After a full night of sleep, participants behaved like most people tend to in the real world: guarding against financial loses and cautiously pursuing gains. "
"But when deprived of a night's sleep (kept awake in the lab from 6 p.m. until 6 a.m.), the volunteers "moved from defending against losses to seeking increased gains," the researchers reported. This shift "suggests an unfounded rise in expectation for gain," a condition the team describes as "an optimism bias."
"They are fighting a sleep-deprived brain's tendency to implicitly seek gains while discounting the impact of potential losses."
Coffee to keep you awake won't work:
"And because these effects seem to run deeper than just apparent torpor, a shot of espresso—or even stronger stimulants—might not short-circuit the sleep-deprived brain's tendency toward unwarranted optimism, Venkatraman added. "Countermeasures that combat fatigue and improve alertness may be inadequate for overcoming these decision biases," he said."
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