A person-action system is a method for placing mnemonic images numbers and cards in a memory palace. Person-action systems are most commonly used with the Dominic System.
Each number or card to be memorized is given a fixed mnemonic image of a person and an action. Here are some examples based on the Dominic System:
|15||Albert Einstein||Writing on a blackboard|
|16||Arnold Schwarzenegger||Lifting weights|
|45||Dwight Eisenhower||Riding in a jeep|
|54||Emily Dickenson||Writing a poem|
When encountering a long number, like 15164554, it would be broken into chunks of four: 1516 4554, and then again into chunks of two: 15-16 45-54. Each set of four digits would then be converted into a person and an action:
- The person for 15 is "Albert Einstein"
- The action for 16 is "lifting weights"
The resulting compound image for the number 1516 would be Albert Einstein lifting weights.
- The person for 45 is "Dwight Eisenhower"
- The action for 54 is "writing a poem"
In that case, the compound image for 4554 would be Dwight Eisenhower writing a poem.
If the numbers were switched, 5445, then it would be Emily Dickenson riding in a jeep.
1654 would be Arnold Schwarzenegger writing a poem.
In this way, a set of 100 persons and actions can make 10,000 unique compound images from 0000 to 9999.
When memorizing long numbers, the compound images are typically placed in a memory palace using the Method of Loci.