Navigation Links
Research Reveals Anatomy of Suppressed Memories: Study

US researchers have identified the parts of the brain that are involved with suppressing unpleasant memories, a finding that could have implications for treating depression or post traumatic stress disorder, according to a study released Thursday.

The concept of memory suppression has been a controversial one among psychologists for a century, but in this study neuroscientists used brain scans to show that volunteers who have been asked to banish disturbing memories show very specific patterns of brain activity.

The scans showed that two specific regions of the prefrontal cortex -- what neuroscientists call the seat of cognitive control -- appear to work in tandem to modulate posterior brain regions like the visual cortex, the hippocampus and amygdala. These areas are involved in tasks such as visual recall, memory encoding and retrieval and emotional expression.

"These results indicate memory suppression does occur, and, at least in nonpsychiatric populations, is under the control of the prefrontal cortex," the investigators reported in the journal Science.

For the purpose of the experiment, the 16 volunteers were given 40 pairs of photographs to study. In each case, an image of a neutral human face was paired with an emotionally disturbing image such as a car crash, a wounded soldier, an electric chair or a violent crime scene.

After memorizing each pair, the volunteers were placed in an MRI (magnetic resonance imaging) scanner. Once inside the machine, they were shown only the neutral face images and instructed to either actively recall the associated image or to actively suppress it.

The results of the scans or fMRIs (functional magnetic resonance imaging) indicated that the volunteers were able to "exert some control over their emotional memories," said Brendan Depue, a doctoral student in neuroscience at the University of Colorado at Boulder, and lead author of the study.

"By essentially shutting down specific portions of the brain, they were able to stop the retrieval process of particular memories," Depue said.

The authors of the paper said they hope that their work will promote further research into better therapies and possibly even drug treatments for people suffering from conditions such as PTSD, phobias, and obsessive-compulsive syndrome. The symptoms of these disorders include flashbacks to disturbing events, and intrusive or obsessive thoughts.

"The first step is to understand how memory suppression works in healthy individuals, and what neural mechanisms are at work," said Depue. "Then you need to look at those same mechanisms in a clinical population and figure out why they aren't functioning properly."


'"/>




Related medicine news :

1. Kidney Stones - Interesting New Research implicates bacteria as its cause
2. Researchers urge caution in using ear tube surgery
3. Paracetamol May Cause Live Damage Warns Consumer Education and Research Centre
4. Researchers Scale to assess the Severity of Epilepsy in Kids
5. Research of Ritalin
6. Researchers trick Alzheimers Enzyme
7. Researchers find new HIV hiding place
8. A Compilation of recent Diabetes Research articles
9. Research on causes for falling helps develop preventive strategies
10. New standards for Human Research Safety
11. Research on Celiac Disease in children
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/5/2016)... ... 2016 , ... Looking for a last-minute Valentine’s Day gift for the special ... Foot massage, whether administered by a professional masseuse or a loved one, can bring ... of Multiple Specialties in Podiatry (ABMSP) has taken the upcoming Valentine’s Day as ...
(Date:2/5/2016)... ... February 05, 2016 , ... US Sports Camps , official operators ... to direct high-performance kids yoga training. ChildLight Yoga Studio is centrally situated in the ... Boston. , ChildLight Yoga Studio founder Lisa Flynn expresses her excitement, “We are thrilled ...
(Date:2/5/2016)... ... , ... Give To Cure today announced that it is working ... To Cure’s campaign that is crowdfunding clinical trials to help find cures faster for ... a smart device. In 2015 alone, Venmo processed $7.5 billion in transactions among users. ...
(Date:2/5/2016)... (PRWEB) , ... February 05, 2016 , ... Dr. Justin ... announce their 2nd Annual No Cost Dental Day to individuals in need. The event ... purpose of this No Cost Dental Day is to provide dental care to community ...
(Date:2/5/2016)... Pekin, IL (PRWEB) , ... February 05, 2016 , ... ... in disguised form as a dream. A hallmark feature of patients with eating disorders ... and needs. The eating disorder behaviors and obsessions are regarded as maladaptive means for ...
Breaking Medicine News(10 mins):
(Date:2/4/2016)... 4, 2016 Worldwide Radiology Oncology surgical ... as next generation systems provide a way to ... cancer surgery. New systems pinpoint the delivery of ... been such a problem previously, limiting the quantity ... take cancer surgery far beyond what has been ...
(Date:2/4/2016)... CITY, Calif. , Feb. 4, 2016 /PRNewswire/ ... "Company") today announced it has entered into a ... Exchange Commission (SEC) fully resolving the SEC,s investigation ... Act (FCPA).  Under the terms of the settlement ... of $12.8 million, including disgorgement, pre-judgment interest and ...
(Date:2/4/2016)... 2016  Montoya Love is recognized by Continental Who,s ... Pharmaceuticals. Montoya is the Regulatory Systems Operations Manager with ... Manufacturing and selling a broad range ... provides healthcare institutions, clinical laboratories and life science researchers ... the globe. ...
Breaking Medicine Technology: