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:4/13/2017)... 13, 2017 According to a new market research ... Analytics, Identity Administration, and Authorization), Service, Authentication Type, Deployment Mode, Vertical, and ... is expected to grow from USD 14.30 Billion in 2017 to USD ... 17.3%. ... MarketsandMarkets Logo ...
(Date:4/6/2017)... April 6, 2017 Forecasts by ... Document Readers, by End-Use (Transportation & Logistics, Government & ... Gas & Fossil Generation Facility, Nuclear Power), Industrial, Retail, ... Are you looking for a definitive report ... ...
(Date:4/3/2017)... WASHINGTON , April 3, 2017 /PRNewswire-USNewswire/ ... single-cell precision engineering platform, detected a statistically ... cell product prior to treatment and objective ... highlight the potential to predict whether cancer ... prior to treatment, as well as to ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... 2017  VMS BioMarketing, a leading provider of patient support ... Nurse Educator (CNE) network, which will launch this week. The ... health care professionals to enhance the patient care experience by ... other health care professionals to help women who have been ... ...
(Date:10/10/2017)... ... , ... San Diego-based team building and cooking events company, Lajollacooks4u, has unveiled ... bold new look is part of a transformation to increase awareness, appeal to new ... , It will also expand its service offering from its signature gourmet cooking classes ...
(Date:10/10/2017)... SANTA CRUZ, Calif. , Oct. 10, 2017 /PRNewswire/ ... SBIR grant from the NIH to develop RealSeq®-SC (Single ... preparation kit for profiling small RNAs (including microRNAs) from ... Cell Analysis Program highlights the need to accelerate development ... "New techniques for ...
(Date:10/9/2017)... , ... October 09, 2017 , ... At its national ... Christopher Stubbs, a professor in Harvard University’s Departments of Physics and Astronomy, has been ... a member of the winning team for the 2015 Breakthrough Prize in Fundamental physics ...
Breaking Biology Technology: