- Sensory information from the environment (input)
- Enters sensory register for very short time.
- If attention is paid to input, then information is transferred to STM.
- Rehearsal keeps information in STM.
- If the information is not rehearsed it will decay or be displaced by new information
- Rehearsal in STM transfers the information to LTM for permanent storage.
When we need information again, we can retrieve it, which is the output
