Disrupt sleep during the deep phase may lead to memory loss, to be reduced activity in the hippocampus at the time of encoding data to be remembered, according to a study published by the British journal Nature Neuroscience.
The research, conducted by a team from the Netherlands Institute for Neuroscience Ysbrand led by Van Der Werf, is based on memory tests conducted on two groups of people after a phase of sleep monitored and controlled by an electroencephalogram.
Thus, in the first group, once the subjects had reached the stage known as “deep sleep”, the researchers made a beep sound, though not enough to wake them up, it’s moved to a more superficial sleep .
Meanwhile, in the second group, individuals slept the same time as the previous group, but his dream is not artificially altered.
Once awake, both groups were subjected to a test of memory and the research team found that those who have had interrupted sleep obtained the worst results.
These data suggest, according to Nature, that the hippocampus-dependent memory is particularly affected by the entry of the subject in superficial sleep phase
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