To ensure lasting memory- The Hindu

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Related topic- Memory
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Repeating brain's electrical impulses is critical to permanent memory.

University of Alberta researchers have established that the ability of the brain to rehearse or repeat electrical impulses may be absolutely critical in order to make a newly acquired memory more permanent.

U of A psychology professor Clayton Dickson likened the process to someone trying to permanently memorize a phone number, “We repeat the number several times to ourselves, so hopefully we can automatically recall it when needed.”

Dickson, the lead researcher on the project, says that neurons likely rehearse the process for recalling newly installed memories by using the brain's downtime to send and resend signals back and forth, establishing well practiced synaptic connections. “Those connections allow the brain to retrieve the memories and rehearsal ensures that they last for a long time,” said Dickson. “It was previously thought that only biochemical processes like protein synthesis were important for solidifying memories.” He says further investigation of this process could be used to improve an individual's memory and as a tool to delete negative or post traumatic memories. The study was published in The Journal of Neuroscience.