Thursday, 25 October 2007

Brain Study: Sleepy, grumpy and...primitive

Reuters: A few nights without sleep can not only make people tired and emotional, but may actually put the brain into a primitive "fight or flight" state, researchers said on Wednesday.
Brain images of otherwise healthy men and women showed two full days without sleep seemed to rewire their brains, re-directing activity from the calming and rational prefrontal cortex to the "fear center" -- the amygdala.
"It's almost as though, without sleep, the brain had reverted back to more primitive patterns of activity, in that it was unable to put emotional experiences into context and produce controlled, appropriate responses," said Matthew Walker of the University of California Berkeley, who led the study. Continued....

6 comments:

Ethereal said...

Too bad the study only included young people of similar ages. If they'd include children of all ages that would have been an interesting comparison. And as the guy points out they found nothing we already knew :/

Syra said...

From what i have seen,kids exhibit the exact same behavior;one minute they are hyperactive & jumping around,the next they are crying and irritated

ISK said...

Lets talk about how u feel when you don't have a sound sleep.

I don't understand the simplest of things that somebody tells me. and my words don't match to what I am trying to say.

Syra said...

i step into the "flight mode" =)

ISK said...

i wonder how do you look like, when you are in fight mode. Actually i don't step into a fight mode because my default mode is fight mode and the above happens in my sleep mode. :)

Syra said...

keep wondering...:p