Navigation Links
Brain state affects memory recall
Date:6/13/2011

Lost your keys? Your brain might be in a better state to recall where you put them at some times than at others, according to new research from UC Davis. A paper describing the work is published June 13 in the journal Proceedings of the National Academy of Sciences.

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

Graduate students Richard Addante and Andrew Watrous; Ranganath; 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. For example, rats show high theta waves while exploring a maze.

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, Ranganath said. 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.

It's not clear whether it is possible to deliberately put your brain into a better state for memory recall, Ranganath said. The laboratory is currently investigating that area with the hope that it might lead to better treatments for memory loss.


'/>"/>

Contact: Andy Fell
ahfell@ucdavis.edu
530-752-4533
University of California - Davis
Source:Eurekalert

Related biology news :

1. Brain structure adapts to environmental change
2. Birdsong independent of brain size
3. Emerging research in brain connectivity reveals new understanding of neurological disorders
4. New neurons take 6 months or more to mature in non-human primate brain
5. Deciding to stay or go is a deep-seated brain function
6. Early light refines the brains circuitry for vision
7. Changes in brain circuitry play role in moral sensitivity as people grow up
8. Pitt team recreates brain cell networks with new view of activity behind memory formation
9. What doesnt kill the brain makes it stronger
10. High iron, copper levels block brain-cell DNA repair
11. Building brains: An introduction to neural development
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/4/2016)... , Feb. 4, 2016 The ... apparently one of the most popular hubs of ... MetaHIT and other huge studies of human microbiota, ... past few years, the microbiome space has literally ... biomedical research. This report focuses on biomedical ...
(Date:2/2/2016)... , Feb. 2, 2016  BioMEMS devices ... primarily focused on medical screening and diagnostic ... parameters. Wearable devices that facilitate and assure ... of movement are being bolstered through new ... biomedical signal acquisition coupled with wireless connectivity ...
(Date:2/2/2016)... 2016  Based on its recent analysis of ... US-based Intelligent Retinal Imaging Systems (IRIS) with the ... New Product Innovation. IRIS, a prominent cloud-based retinal ... , is poised to set the new ... market. The IRIS technology presents superior price-performance value ...
Breaking Biology News(10 mins):
(Date:2/10/2016)... ... February 10, 2016 , ... SonaCare Medical, LLC reports the ... Sonalink™ remote monitoring. The inaugural launch of this new technology occurred over the ... Samuel Peretsman to a HIFU technical expert at SonaCare Medical headquarters. , ...
(Date:2/10/2016)... Miami, FL (PRWEB) , ... February 10, 2016 ... ... leader in regenerative medicine, has announced a new agreement with Singapore-based Global Stem ... qualified physicians from the Philippines, Thailand and Singapore in the latest adipose and ...
(Date:2/9/2016)... ... February 09, 2016 , ... With a presidential election in November and the ... will bring together over 500 top healthcare leaders for a night and day of ... organized by MBA students of the University of Pennsylvania’s Wharton School, will be held ...
(Date:2/9/2016)... ... 08, 2016 , ... Net-Translators, an industry-leading provider of translation, ... revamped and improved website. In an on-going effort to further educate customers and ... communicate how the company designs and delivers thorough, high-quality results for its growing ...
Breaking Biology Technology: