Navigation Links
Decoding short-term memory with fMRI
Date:2/20/2009

People voluntarily pick what information they store in short-term memory. Now, using functional magnetic resonance imaging (fMRI), researchers can see just what information people are holding in memory based only on patterns of activity in the brain.

Psychologists from the University of Oregon and the University of California, San Diego, reported their findings in the February issue of Psychological Science. By analyzing blood-flow activity, they were able to identify the specific color or orientation of an object that was intentionally stored by the observer.

The experiments, in which subjects viewed a stimulus for one second and held a specific aspect of the object in mind after the stimulus disappeared, were conducted in the UO's Robert and Beverly Lewis Center for Neuroimaging. In 10-second delays after each exposure, researchers recorded brain activity during memory selection and storage processing in the visual cortex, a brain region that they hypothesized would support the maintenance of visual details in short-term memory.

"Another interesting thing was that if subjects were remembering orientation, then that pattern of activity during the delay period had no information about color, even though they were staring at a colored-oriented stimulus," said Edward Awh, a UO professor of psychology. "Likewise, if they chose to remember color we were able to decode which color they remembered, but orientation information was completely missing."

Researchers used machine-learning algorithms to examine spatial patterns of activation in the early visual cortex that are associated with remembering different stimuli, said John T. Serences, professor of psychology at UC-San Diego. "This algorithm," he said, "can then be used to predict exactly what someone is remembering based on these activation patterns."

Increases in blood flow, as seen with fMRI, are measured in voxels -- small units displayed in a 3-D grid.
'/>"/>

Contact: Jim Barlow
jebarlow@uoregon.edu
541-346-3481
University of Oregon
Source:Eurekalert  

Page: 1 2 3

Related medicine news :

1. Decoding Muscle Stem Cell Development
2. UT Health Science Center researchers decoding saliva to detect breast cancer
3. Assessing the real risk of heart disease in young people with low short-term risks
4. New data show patients using avonex reported less sick leave and short-term disability costs
5. Short-term use of antipsychotics in older adults with dementia linked to serious adverse events
6. FDA Approves NEXIUM(R) for the Treatment of Short-Term GERD in Children 1 to 11 Years Old
7. Journal Sleep: A short-term dose of zolpidem is an effective treatment for insomnia
8. The Westaim Corporation update on status of short-term investments
9. Short-term hemofiltration is cost-effective for severe acute pancreatitis
10. Physiotherapy has short-term benefits for patients after knee surgery
11. Out-of-Control Blood Sugar May Affect Memory
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Decoding short-term memory with fMRI
(Date:7/10/2014)... 10, 2014 Register to download the ... streamed the live webinar ‘Capitalizing on the Shifting Sands ... group of several M&A experts in the energy sector ... energy transaction marketplace. These experts shared their insights into ... market in this sector has been revitalized. This roundtable ...
(Date:7/10/2014)... 2014 Best Drug Rehabilitation ... having family close by during a stay in ... or not the process is successful, has launched ... at http://www.bestdrugrehabilitation.com/success-stories/ . , The new Success ... from several Best Drug Rehabilitation graduates who wanted ...
(Date:7/10/2014)... Colo. (July 8, 2014) A new study from ... modest improvements, poor oral health remains a major problem ... , "The oral health among Native Americans is abysmal ... rest of the country," said Terrence Batliner, DDS, MBA, ... Research at the School of Public Health. "The number ...
(Date:7/10/2014)... -- Adults with dyslexia are more likely to report ... than people who don,t have the learning disorder, according ... up to 10 percent of people, causes problems with ... adults with this condition said they suffered physical abuse ... without dyslexia. "Even after accounting for age, race, ...
(Date:7/10/2014)... HealthDay Reporter THURSDAY, July 10, 2014 (HealthDay ... regularly between outspoken celebrities or loudmouth pundits -- too much ... study suggests. High amounts of Twitter use can lead ... in a long-term relationship, according to findings from an online ... can lead to cheating and breakups, the researchers concluded, although ...
Breaking Medicine News(10 mins):Health News:Register to Download Merrill DataSite's Report: Capitalizing on the Shifting Sands of the Energy Market 2Health News:Best Drug Rehabilitation Launches New Success Stories Section of Website 2Health News:Study finds widespread oral health problems among Navajo 2Health News:Researchers See Link Between Dyslexia, Abuse 2Health News:Are You Tweeting Your Marriage Away? 2Health News:Are You Tweeting Your Marriage Away? 3
... the Black Death as the world's worst pandemic if the ... get life prolonging drugs. The illness has killed 25 million ... infected each day with HIV, which destroys the immune system. ... will die, pushing the death toll beyond the 40 million ...
... suffer from asphyxia, which can lead to brain injury, multiple ... cent of babies who suffer from a moderate lack of ... no effective treatments to reduce the risk of asphyxia at ... a baby's temperature may have beneficial effects. ,UK researchers ...
... in the alpha gene are the cause of premature menopause ... about 2% of the total population. ,The University of ... of a genetic test, which would allow women// with a ... at risk. They analysed DNA from women who had experienced ...
... undergoing coronary artery bypass surgery is rising, even though ... artery bypass surgery uses a blood vessel from another ... or clogged arteries in the heart. A buildup of ... known as atherosclerosis. ,In the new study, ...
... FDA issued a statement about the potential for depression and ... reports say that the 15-year-old pilot who crashed his plane ... investigators don't know whether or not the teen, Charles J. ... death. Blood tests should reveal if the drug was in ...
... from the Institute of Health Sciences in Oxford found that ... likely to have a stillbirth, or to develop pre-eclampsia.// Taking ... the researchers. ,The researchers reviewed more than 23 ... benefits of anti-platelet drugs, of which low-dose aspirin is the ...
Cached Medicine News:
(Date:7/10/2014)... , July 10, 2014  Breg, Inc., a ... has launched the FreeRunner™ knee brace with new ... from patella mal-tracking return to active lifestyles.  FreeRunner,s ... other braces, providing support when patients need it ... they don,t. Patellofemoral issues are the ...
(Date:7/10/2014)... WEST JORDAN, Utah , July 10, 2014 /PRNewswire/ ... imaging solutions, and MiE America , Inc., a ... systems, have entered into a long-term agreement naming BC ... in the US. MiE and BC ... a strategic agreement to establish BC Technical as the ...
(Date:7/10/2014)... Israel , July 10, 2014   ... Diabetes Management Solution, today announced the appointment of ... independent member of its Board of Directors. ... legal and business experience to LabStyle as an ... and legal and corporate governance expert. He currently ...
Breaking Medicine Technology:Breg Introduces Knee Brace to Help Runners with Patellofemoral Pain Syndrome 2BC Technical Partners With MiE America To Be Authorized Provider Of Systems & Service 2LabStyle Innovations Welcomes Richard B. Stone to its Board of Directors 2LabStyle Innovations Welcomes Richard B. Stone to its Board of Directors 3LabStyle Innovations Welcomes Richard B. Stone to its Board of Directors 4
... New to Antiretroviral Therapy Respond ... Similarly to Men and ... once-daily or twice-daily dosing of Abbott,s (NYSE:,ABT) protease inhibitor Kaletra(R) ... amount of HIV-1),and improving the immune system (increasing CD4 cells) ...
... a,biopharmaceutical company engaged in the discovery and development ... announced today,that Genentech, a collaborator, has moved a ... into a phase 1 clinical trial,that has begun ... and tolerability of both single and multiple doses ...
Cached Medicine Technology:Abbott's Kaletra(R) Tablet Dosed Once-Daily or Twice-Daily Demonstrated Similar Clinical Results Across Race and Gender Lines 2Abbott's Kaletra(R) Tablet Dosed Once-Daily or Twice-Daily Demonstrated Similar Clinical Results Across Race and Gender Lines 3Abbott's Kaletra(R) Tablet Dosed Once-Daily or Twice-Daily Demonstrated Similar Clinical Results Across Race and Gender Lines 4Abbott's Kaletra(R) Tablet Dosed Once-Daily or Twice-Daily Demonstrated Similar Clinical Results Across Race and Gender Lines 5Abbott's Kaletra(R) Tablet Dosed Once-Daily or Twice-Daily Demonstrated Similar Clinical Results Across Race and Gender Lines 6Abbott's Kaletra(R) Tablet Dosed Once-Daily or Twice-Daily Demonstrated Similar Clinical Results Across Race and Gender Lines 7Abbott's Kaletra(R) Tablet Dosed Once-Daily or Twice-Daily Demonstrated Similar Clinical Results Across Race and Gender Lines 8Tolerx Announces Achievement of Milestones upon anti-CD4 Antibody Program Advancement and Initiation of Phase 1 Clinical Trial 2Tolerx Announces Achievement of Milestones upon anti-CD4 Antibody Program Advancement and Initiation of Phase 1 Clinical Trial 3
ThermalSeal RT (5mil) is Optically Clear for Real Time PCR and easy to apply. Works for all plates. Will not wrinkle in the freezer....
DMSO-resistant microplate sealing film...
Sealing tape featuring 3M adhesive technology. Opaque and strong. Prevents photo-degradation....
Aluminum Seal, Reflective, Bulk...
Medicine Products: