After speaking with Theresa Hoglund Mueller, it becomes clear that art therapy can have an immense impact on people as it did with Edgar in the book. Although, not in the supernatural way!
Elizabeth Eastlake, a character that lives on Duma Key, has experienced much of what Edgar is going through. She has Alzheimer’s disease, though, and this causes Edgar to not trust the things she is saying initially. How does Alzheimer’s affect the brain? In a healthy brain, neurons communicate with each other and transmit information via electrical and chemical signals. The brain then sends messages to the rest of the body including muscles and organs. Alzheimer’s gets in the way of this communication and, in turn, causes cell death and loss of function. People with this disease lose their ability to function and live independently and will eventually die from it.
Elizabeth, like Edgar, believes that the art created on Duma Key can change the fate of the subjects painted. Could they be suffering from a shared delusion? According to research, most people who suffer from folie-a-deux, or a madness shared by two, tend to have a strong emotional connection or family ties. They also tend to be isolated in some way either geographically or culturally. One study revealed that even a family dog shared in the delusions! This occurrence was documented in
Ms. A, an eighty-three-year-old widow who had lived alone for fifteen years, complained that the occupant of an upstairs flat was excessively noisy and that he moved furniture around late at night to disturb her. Over a period of six months, she developed delusionary persecutory ideas about this man. He wanted to frighten her from her home and had started to transmit “violet rays” through the ceiling to harm her and her ten-year-old female mongrel dog. Ms. A attributed a sprained back and chest pains to the effect of the rays and had become concerned that her dog had started scratching at night when the ray activity was at its greatest. For protection, she had placed her mattress under the kitchen table and slept there at night. She constructed what she called an “air raid shelter” for her dog from a small table and a pile of suitcases and insisted that the dog sleep in it. When I visited Ms. A at her home, it was apparent that the dog’s behavior had become so conditioned by that of its owner that upon hearing any sound from the flat upstairs, such as a door closing, it would immediately go to the kitchen and enter the shelter.9