Priming is a nonconscious form of human memory concerned with perceptual identification of words and objects. It refers to activating particular representations or associations in memory just before carrying out an action or task. For example, a person who sees the word 'yellow' will be slightly faster to recognize the word 'banana.' This happens because the words 'yellow' and 'banana' are closely associated in memory. Additionally, priming can also refer to a technique in psychology used to train a person's memory in both positive and negative ways.