Good morning friends. We all know that brain is the most important part of our body. It is the brain who command us what to do. As it is very useful
Individual nerve cells in the front part of the brain can hold traces of memories on their own for as long as a minute and possibly longer.
This is the first time that a study has recognized the specific signal that establishes nonpermanent cellular memory, and revealed how the brain holds temporary information. The new finding has implications for addiction, attention disorders and stress-related memory loss. Permanent memories are known to be stored when the excitatory amino acid glutamate activates in channels on nerve cells in the brain to reorganize and strengthen the cells’ connections with one another.
This process takes minutes to hours to turn on and off and is too slow to buffer, or temporarily hold, rapidly incoming information.
It shows that rapid-fire inputs less than a second long initiate a cellular memory process in single cells lasting as long as minute, a process called metabotropic glutamate transmission.
It has been said that this transmission in the most highly evolved brain region holds moment-to-moment information.
These cellular findings have implications for how the human brain stores rapidly changing information, like the temporary memory a card shark uses when counting cards in a game of Black Jack and, as casinos have figured out. It is the memory that is most sensitive to the disruptive effects of alcohol and noisy distractions.
ref: The times of India
No comments:
Post a Comment