People who often remember their dreams have
high levels of activity in certain
areas of the brain, a new study says.
Researchers led by Perrine Ruby, of the
Lyon Neuroscience Research Centre in France, conducted brain scans on 41 people
while they were awake and while they slept.
Of the participants, 21 remembered dreams
an average of about five mornings per week ("high dream recallers")
and 20 remembered dreams only two mornings per month ("low dream recallers").
When asleep and awake, the high dream recallers
showed higher levels of activity in the brain's medial prefrontal cortex and
temporo-parietal junction, which is an information-processing hub, according to
a news release from the French National Institute of Health and Medical
The study was published online in the
More periods of wakefulness
Previous research by the same team found
that high dream recallers have twice as many periods of wakefulness during the
night and that their brains react more to sounds while they're sleeping and
awake, compared to low dream recallers.
The increased brain activity in high dream
recallers may cause them to wake up more often during sleep and thereby
improve their recollection of dreams, Ruby said in the news release.
She noted that the "sleeping brain is
not capable of memorising new information; it needs to awaken to be able to do
The researchers also said that high dream
recallers may have more dreams than low recallers and therefore more dreams
dreams good for you
world of dreams