Brain Waves Linked to Memory Recall

by Sheela Philomena on  June 14, 2011 at 3:35 PM Research News
RSS Email Print This Page Comment
Font : A-A+

Researchers have explained the mechanism underlying better memory retrieval at some times than at others.
 Brain Waves Linked to Memory Recall
Brain Waves Linked to Memory Recall

"It's been assumed that the process of retrieving a memory is cued by an external stimulus. But we found that the levels of brain activity before items came up were correlated with memory," said Charan Ranganath, professor at the UC Davis Center for Neuroscience and Department of Psychology.

Ranganath and his team including graduate students Richard Addante and Andrew Watrous, Andrew Yonelinas- professor of psychology at the UC Davis Center for Mind and Brain, and Arne Ekstrom- assistant professor of psychology at the Center for Neuroscience, measured a particular frequency of brainwaves called theta oscillations in the brains of volunteers during a memory test.

Theta waves are associated with a brain that is actively monitoring something, Ranganath said.

In the memory test, the volunteers had to memorize a series of words with a related context. They later had to recall whether they had seen the word previously and the context in which the word was seen.

High theta waves immediately before being prompted to remember an item were associated with better performance.

The work goes against the assumption that the brain is waiting to react to the external world, noted Ranganath.

In fact, most of the brain is busy with internal activity that is not related to the outside world - and when external stimuli come in, they interact with these spontaneous patterns of activity.

The study was published in the journal Proceedings of the National Academy of Sciences, June 13.

Source: ANI

Post a Comment

Comments should be on the topic and should not be abusive. The editorial team reserves the right to review and moderate the comments posted on the site.
Notify me when reply is posted
I agree to the terms and conditions

Related Links

More News on:

Parkinsons Disease Parkinsons Disease Surgical Treatment Brain Brain Facts Ataxia Brain Exercises to Improve Memory Foods to Improve Memory Power Language Areas in The Brain Ways to Improve your Intelligence Quotient (IQ) Quick and Easy Ways to Memorize Things 

News A - Z

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

News Search

Medindia Newsletters

Subscribe to our Free Newsletters!

Terms & Conditions and Privacy Policy.

Advertisement
Advertisement

Stay Connected

  • Available on the Android Market
  • Available on the App Store

Facebook

News Category

News Archive