Chunking Improves Memory Recall

Source: Farnham Street, Feb 2017

In 1956 George Miller, a Princeton University psychologist, set out an important principle that you’ve probably heard of in a paper titled “The Magical Number Seven, Plus or Minus Two.”

Miller revived an observation made by Scottish Philosopher William Hamilton. After throwing marbles on a floor, “you will find it difficult to view at once more than six, or seven at most, without confusion.”

More items, however, Hamilton noted can be remembered when they are “chunked.”

Memory Pegs

One can remember long strings of numbers, letters, or words when they are reconstructed into meaningful patterns, also known as “memory pegs.”

One that is familiar to most of us concerns the position of the planets in relations to the sun, which is remembered by the mnemonic aid “My Very Educated Mother Just Sent Us Nine Pizzas.” This sequence reminds us of the planetary order: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. (Before you ask, I haven’t abandoned Pluto just yet.)

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