You forgot? Well, your brain didn't!
What we forget also stays in our memory, says a study which reveals that our brain houses more memories than we think it does.Updated: Jun 01, 2006 13:40 IST
What we forget also stays in our memory, says a study which reveals that our brain houses more memories than we think it does.
Sander Daselaar of the University of Amsterdam and Roberto Cabeza of Duke University studied 14 healthy young adults and found that the healthy brain may hold memories even of the "we do not even remember" category, according to the online edition of health magazine WebMD.
The researchers first showed the participants a list of 120 real words mixed with 80 words without any meaning. Next, they showed them another list and asked them to remember the words that had been on the first list.
Meanwhile, the researchers conducted functional magnetic resonance imaging (MRI) of the brains of participants.
While participants reviewed the second word list, their brain scans showed more activity in a certain brain area - the posterior median temporal lobe - when they saw words that had been on the first word list.
But participants did not always remember that they had seen those words before. Sometimes they goofed and said they had not seen those words before.
"Memories might have a photo album in the brain, but sometimes we forget what's on all of the photo album's pages" the researchers say in the study that appeared in The Journal of Neuroscience.
First Published: Jun 01, 2006 13:40 IST