Disrupt Sleep in the Deep Phase Can Cause Memory Loss
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
