Temple grandin had difficulty relating to her family members as well as her peers. she cringed when her mother tried to hug her and avoided contact with others. this is characteristic of a key feature of autistic disorder.

impaired social interaction

Explanation:

One of the main features that is easily observable in individual with autistic disorder is that they have problem interacting with others, and as such will display characteristics or traits that reject or ignore social advances of others. They often have difficulty in using and interpreting body language.  

Temple Grandin’s cringing when her mum tried to hug her and her avoidance of having contact with others are clear signs of impaired social interaction, which is a key feature of autistic disorder.

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.