How memories form, fade, and persist over time
What was the name of that guy with that stuff in that place with those things? Don’t you remember?
Scientists have found mechanisms for how the brain creates short-term and long-term memories.
We all suffer occasional lapses in memory. Some people suffer severe neurological conditions, such as Alzheimer’s, that rob them of their ability to form memories or remember recent events.
Three new studies shed light on the way the brain forms, stores and retrieves memories. Experts say they could have implications for people with certain mental disorders.
When did it happen?
Newly born brain cells, thousands of which are generated each day, help “time stamp” memories, according to a computer simulation by scientists at the Salk Institute for Biological Studies in La Jolla, California, and the University of Queensland in Australia. The research was published in the journal Neuron.
These cells do not record an exact, absolute date — such as January 28, 2009 — but instead encode memories that occur around the same time similarly. In this way, the mind knows whether a memory happened before, after or alongside something else.
Neuroscientists believe that if the same neurons are active during two events, a memory linking the two may be formed. Complete article on CNN below…
How memories form, fade, and persist over time – CNN.com.
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