This approach has its limits; in particular, research demonstrates that our memory for what we have heard is remarkably weak. Our memory for what we have done, however—for physical actions we have undertaken—is much more robust. Linking movement to the material to be recalled creates a richer and therefore more indelible “memory trace” in the brain. In addition, movements engage a process called procedural memory (memory of how to do something, such as how to ride a bike) that is distinct from declarative memory (memory of informational content, such as the text of a speech). When we connect
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