How does Torey Hayden use imagery in Ghost Girl: The True Story of a Child in Peril and the Teacher Who Saved Her?

Imagery:

"Jadie might as well have been a ghost. No one spoke to her, looked at her, or even acknowledged her presence in the room."

"There was an unmistakably manic quality to her play. She yanked, jerked, shouted and threw. The doll so tenderly put away on Monday was screamed at and flung around with the others."