The sleep deprived people are much more likely to sign false confessions, according to a study published in the journal Proceedings of the National Academy of Science (PNAS).
the chances of signing a false confession were 4.5 times higher among study participants who had been awake for 24 hours in front of those who slept eight hours the night before.
“This is the first direct evidence that sleep deprivation increases the chance that a person falsely confess a crime he did not commit, said Kimberly Fenn, associate professor of Psychology at the University of the State of Michigan.
therefore, he considered it “a first crucial step in understanding the role of sleep deprivation on the false and raises confessions turn , complex questions about the use of sleep deprivation during interrogation innocent suspects and guilty, “he said.
the study involved 88 people who carried out various activities to your computer and cognitive tests for a week. All were warned on several occasions not to touch the “escape” key as “could mean the loss of valuable information from your computer.”
Last night, half of the participants slept eight hours while the rest remained awake.
The next morning, each person received a report of its activities, in which it was claimed falsely that had touched the “escape” key.
all of them were asked to sign the report and will make a box in which confirmed it was accurate.
the result was that half of those who had not slept the night before signed the false confession, compared with 18% of those who had fallen asleep.
lack of sleep had a “significant impact” on people who had lower results on a test of cognitive reflection, which is related to intelligence, as they were much more likely to sign a false confession.
in addition, those that recorded a higher level of sleepiness, according to the Stanford sleepiness Scale, were significantly more likely to sign a false confession.
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