The book the origin of species, written by cast doubt on classical and neoclassical theories. this book introduced the concept that other influences of human behavior beyond free will and choice were at play.

Muriel is an 86-year-old woman who tries to function independently but has suffered for several years with forgetfulness, especially with recent memories. she has trouble recalling the names of her best friends when they call on the phone, and she worries that she may have a form of dementia called alzheimer's disease huntington's disease schizophrenia parkinson's disease