Scientists said the drug can selectively delete the memory of terror

Dutch scientists claim that a common treatment for angina drug Inderal (propranolol) can selectively delete the memory of terror, which may become the treatment of anxiety disorders --- new approach to save memory by blocking the protein required by the synthesis, and thus interfere with memory consolidation, the study published in the February 16 publication of "Nature - Neural Science" on.

In the new experiments, researchers at the University of Amsterdam, the Netherlands, staff give Healthy volunteers watch spider picture, a picture of one of the first shock will be. When the volunteers learn to be linked to the spider and electric shocks and saw the picture site will result in anxiety.　　

The next day, researchers will be divided into two groups of volunteers to one of the one group was given propranolol (used to treat arrhythmias, angina drug); give another group a placebo. Researchers to show them the same picture of the spider, and then burst through the broadcast of noise and analysis of the eye muscles a note of intensity level of their fears. The third day, two groups have to remember the shock and the links between the spider: they are precisely what I remember when fear. But taking a group of propranolol fear should be smaller. That implies that the contents of memory preserved intact, but the emotional memories trigger has been deleted.

This new discovery builds on decades of research on animals, the brain in different regions of different memory storage. A brain region called the amygdala is considered the brain's fear center in the brain's emotional memory storage plays an important role. In animal studies have shown that propranolol prevented the tonsil in a molecule, interferes with memory consolidation. The scientists have found that to remember a simple act, they need to keep on memory consolidation.

Previous studies have demonstrated that propranolol can help with post-traumatic stress disorder (PTSD) patients. Sargent said: "Exposure therapy is the treatment of anxiety disorders the most effective way, but not for everyone to apply to have 20%% 60%% of patients will deteriorate again." However, taking the propranolol patients will not, This indicates that the memory really weaken or even completely eliminated.　

Sargent and other research team is conducting more extensive tests to determine the efficacy of propranolol at the same time, also want to find out the circumstances under which medication is best for them. Sargent said: "The next step is to observe that the impact of drugs on memory duration, to study their impact on people with certain diseases or the treatment of patients with phobia."

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Postural effects of memory! Nine secrets of human physiology

1, Why have four color
Was milky white skin may, in epidermal skin blood vessels to add a red, yellow pigment added some background. Finally, the skin will lead to melanoma due to ultraviolet radiation and a black together. These four different colors to mix and match to generate the proportion of different color.
2, Laughter can strengthen the communication link
Yawn and laugh all "contagion." Hear the laughter can stimulate brain activity and facial region. In social interactions, imitation plays an important role. Laughing, crying and yawning are in groups the way enhance the communication link.
3, Posture affect memory
Experts point out that with the past when the body is in a similar position at the time, people, it is easy to remember the scenes at that time. In addition, the smell or sound may awaken distant memory.
4, Cold weather will make people constantly runny nose
Cilia physical body the functioning of many organs help. In the nose, the cilia can help the mucus from the nasal cavity into the throat. Cold weather will slow the process liquid, resulting in mucus obstruction, is constantly runny nose.
5. Hidden corrosion stomach acid
Any airport screening facilities are unable to your body --- a dangerous liquid acid. Industry, the hydrochloric acid used for immersion of metal. And we have mucus inside the stomach wall can be such venom safely stored in the digestive system, the decomposition of food to help people.
6, Was a waste of tens of thousands of egg cells
Young women an average of 34,000 immature follicles, but their lives, only about 350 will mature, and the remaining tens of thousands of follicles were wasted.
7, Adolescent angry easily
When the person is in puberty, prone to mood swings, attitude of indifference, poor decision-making power and so on. This is because a variety of hormones affect the brain development of nerve cells, and brain changes in the structure will result in a variety of acts from happening.
8, Cerebral hypoxia resulted in a stroke
The brain accounts for 2% of body weight, but consumes 20% of the oxygen and energy, three major cerebral artery to the brain oxygen supply must be sustained. If one of blocked or broken, the brain cells due to lack of oxygen will not work properly, resulting in a stroke.
9, Hone calcium for the body
Bones not only support the body's various organs and muscles, but also adjust the content of calcium in vivo. Bones contain phosphorus and calcium, and calcium muscle and nervous system are necessary. If insufficient calcium content in vivo, specific hormones will make the bone decomposition, thereby enhancing the body's calcium content.

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