Six-minute nap "may boost memory"

In the the article "Six-minute nap "may boost your memory" BBC reporter describes an experiment reported in New Scientist megazine.

The team of German scientists from the University of Dusseldorf , led by Dr Olaf Lahl have tested a group of students by giving them a set of words to remember and then dividing them into two groups: the first was allowed to sleep for 6 minutes and the second one was not.

Students who have taken a nap have outperformed others in a memory task. The researchers suggest that "ultra-short" sleep may have activated certain processes in the brain which lead to memory enhancement.

According to professor Jim Horne, from the Sleep Research Centre at Loughborough University, the colected data is yet to be convincing and reliable.