Activating memories of your childhood by forming vivid mental images of various locations in your childhood home best illustrates:

The answer is priming.

Explanation:

Priming is a technique in which a stimulus leads to another related stimulus. For example, some words are recognised or remembered more easily in the presence of other related words, such as "school" and "notebook".

In the example, priming occurs through mental images. The memory of a place will likely lead to another related memory (e.g. an experience or a person's name).  

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