Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

We are all now connected by the Internet, like neurons in a giant brain.

 

Stephen Hawking

 

How Scientists Are Learning To Shape Our Memory

RATE THIS! +43
Posted in Science on 26th Nov, 2013 12:08 AM by AlexMuller

Roadside bombs, childhood abuse, car accidents—they form memories that can shape (and damage) us for a lifetime. Now, a handful of studies have shown that we’re on the verge of erasing and even rewriting memories. The hope is that this research will lead to medical treatments, especially for addiction and post-traumatic stress disorder (PTSD).

 

Researchers have known for decades that memories are unreliable. They’re particularly adjustable when actively recalled because at that point they’re pulled out of a stable molecular state. Last spring, scientists published a study performed at the University of Washington in which adult volunteers completed a survey about their eating and drinking habits before age 16. A week later, they were given personalized analyses of their answers that stated—falsely—that they had gotten sick from rum or vodka as a teen.
 
One in five not only didn’t notice the lie, but also recalled false memories about it and rated that beverage as less desirable than they had before. Studies like these point to possible treatments for mental health problems. Both PTSD and addiction disorders hinge on memories that can trigger problematic behaviors, such as crippling fear caused by loud noises or cravings brought about by the sight of drug paraphernalia.
 
Several studies have found chemical compounds that can be used to subdue or even delete memories in mice (and maybe someday in people). In June, a report led by an Emory University researcher showed that SR-8993, a drug that acts on the brain’s opioid receptors, can prevent a fear memory from forming. Researchers strapped mice to a wooden board for two hours—a stressful experience that later gave them a heightened sense of fear similar to PTSD. But mice given SR-8993 before or after the stressful incident were less likely to end up this way.
 
Another study identified a drug, Latrunculin A, that can erase memories days later. The researchers trained rodents to consume methamphetamine in an environment with distinctive visual, tactile, and scent cues such as black walls, gridded floors, and the scent of vanilla or peppermint. Rodents that were injected with Latrunculin A two days later didn’t seek out meth when returned to that environment, but others did. Latrunculin A is known to mess up scaffolding that supports connections between neurons. Considering how broadly these two drugs affect the brain, there’s a possibility of serious side effects.

Tags: brainneuroscienceneuronmemoryPTSD

Read original article » Back to category

Comments

Author: Guest
Posted: 2013-11-26
+2
Brain is the most complex structure that exists - as far as we know - there is a big investment to learn more Reply
Author: Guest
Posted: 2013-11-26
+0
Most people have so-called flashbulb memories of where they were and what they were doing when something momentous happened. But as clear and detailed as these memories feel, psychologists find they are surprisingly inaccurate.
2 Replies
Author: Guest
Posted: 2013-11-26
+0
It’s likely that some types of memory, such as a flashbulb memory, are more susceptible to change than others.
1 Replies
Author: Guest
Posted: 2013-11-26
+0
Memories surrounding a major event might be especially susceptible because we tend to replay them over and over in our minds and in conversation with others—with each repetition having the potential to alter them. Reply
Reply
Reply
Author: Guest
Posted: 2013-11-26
+1
Neuroscience is so fascinating. Our brains hold a seemingly endless supply of information. How are we able to learn, store, and recall information with such ease?
1 Replies
Author: Guest
Posted: 2013-11-26
+1
Advances in molecular biology and genetics are offering new clues about key molecules and proteins that influence memory. This insight could one day guide new treatments for learning disorders and memory loss
3 Replies
Author: Guest
Posted: 2013-11-26
+0
The hope is that such research will lead to medical treatments including addiction and post-traumatic stress disorder Reply
Author: Guest
Posted: 2013-11-26
+0
We now know that brain cells undergo chemical and structural changes during learning. By changing the number, or strength, of connections between brain cells, information is written into memory. Reply
Reply
Reply
Author: Guest
Posted: 2014-01-24
+0
Marvel's Agents of S.H.I.E.L.D.: Arguably the most buzzed-about pilot in recent history, the series brings Marvel's superhero business to the small screen in this action drama centering on S.H.I.E.L.D. (Stragetic Hazard Intervention Espionage Logistic Directorate). Ming-Na, Clark Gregg (Coulson lives!) and Elizabeth Henstridge star in the project from Buffy and Avengers mastermind Joss Whedon, Jed Whedon and Maurissa Tancharoen. The series will air Tuesdays at 8 p.m. Reply
Author: Guest
Posted: 2016-05-06
+0
LisaP, so much for “fact checking”, today’s &#l;t02journa8is2s” can’t even be bothered to look up the history of public figures. And I cannot help wondering how many African Americans the reporter has encountered who have such strong Nigerian-English accents. Reply


 

Recent headlines

  • Posted in Medicine on 2017-05-25 15:31:42
    Too Much Sleep Could Signal Dementia..read more
    Posted in Business on 2017-05-25 15:26:18
    India cancels plans for huge coal power stations as solar.....read more
    Posted in Games on 2017-05-25 15:09:54
    Google Artificial Intelligence defeats human Go champion..read more
    Posted in Science on 2017-05-24 15:12:39
    In 'Enormous Success,' Scientists Tie 52 Genes to Human.....read more
    Posted in Science on 2017-05-24 15:04:49
    Humans Accidentally Created a Protective Bubble Around Earth..read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    Nanoparticle vaccine shows potential as immunotherapy to fight.....read more
    Posted by AlexMuller
    Obesity is top cause of preventable life-years lost, study shows..read more
    Posted by AlexMuller
    Light can be utilized to control gene function..read more
    Posted by AlexMuller
    Brain stimulation restores memory during lapses, research shows..read more
    Posted by AlexMuller
    Wax worm caterpillar will eat plastic shopping bags: New.....read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me