Search This Blog

Saturday 27 September 2014

Learning and Memory.

http://jedismedicine.blogspot.in/2012/05/mentoring-phantoms.html

In 2004, Nobel laureate Susumu Tonegawa and his team at Picower 
Institute for Learning and Memory at MIT discovered how the neurons make the needed proteins.  "There is a direct activational signal from the synapse to the protein synthesis machinery," says Tonegawa.  An enzyme called mitogen-activated protein kinase (MAPK) provides a molecular switch that turns on increased synthesis of a large number of proteins…"Very limited cues are sufficient to trigger a chain reaction that permits us to become aware of the rich and detailed content of a memory," Tonegawa says.  "This phenomenon is called pattern completion because it reflects cellular processes accompanying memory retrieval in which activation of a pattern of cellular connections harboring memory is completed by very limited input."

So with all these connections it is estimated that the human brain has 2.5 petabytes of storage capacity

Humans have the capacity to learn not by dogma but by metaphors and storifying concepts. Our memories can store 7-digit information for about 30-seconds and no more. If that is so, how do we remember data from long ago like the Pledge of Allegiance, “America the Beautiful” or for that matter Lincoln’s Gettysburg address or in the soft twilight of a rested evening, the words of Wordsworth pertaining to “Daffodils?”



No comments:

Post a Comment