Forgetting curve

The forgetting curve hypothesizes the decline of memory retention in time. This curve shows how information is lost over time when there is no attempt to retain it. A related concept is the strength of memory that refers to the durability that memory traces in the brain.

The stronger the memory, the longer period of time that a person is able to recall it.
A typical graph of the forgetting curve purports to show that humans tend to halve their memory of newly learned knowledge in a matter of days or weeks unless they consciously review the learned material.

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Source: Wikipedia · Image: Wikimedia Commons · CC0

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