Claire extends her left calf muscle then relaxes it, concentrating on the tension leaving the muscle as she does so. Claire then tenses and relaxes her left quadriceps, again noting the flow of tension from the area. Claire is engaged in:

Progressive muscle relaxation

Explanation:

Progressive muscle relaxation is a method that helps relieve tension in the muscle in a non drug way. It is based on the notion that muscle tension is the body's psychological response to anxiety-provoking thoughts and that muscle relaxation stops anxiety.

a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.