Less Than 5 Hours of Sleep Leads to False Memories
TIME | 11 September 2014
Skimping
on sleep wears down your body in so many ways: it worsens cognitive
function, slows reaction time, and makes learning more difficult. (The
list goes on and on: after reading our new feature about the power of sleep, you might just scare yourself sleepy.)
That’s quite enough consequences without piling on the results of a recent study in Psychological Science,
which found that sleep deprivation is linked to false memories. Among
the 193 people tested, those who got 5 or fewer hours of sleep for just
one night were significantly more likely to say they’d seen a news video
when they actually hadn’t.
The study also discovered that students were more prone to
researchers’ false suggestions when they hadn’t slept more than five
hours. They wove those suggestions into their responses 38% of the time,
while the group that got plenty of sleep did so 28% of the time. That’s
probably because sleep deprivation leads to problems encoding new
information, the authors write.
“Our results also suggest that total sleep deprivation may not be
necessary to increase false memory,” they write in the study. Losing
just a few hours could be enough to lead you to dream up facts during
waking life.
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