While Georgia is participating in a sleep research study, a PET scan reveals decreased activity in her frontal lobes and primary visual cortex, and increased activity in areas of the limbic system that are associated with emotion, memory, and motivation. According to the Focus on Neuroscience box, Georgia is most likely experiencing sleep and dreams.

Dr. robbins wants to know if there are different opinions regarding the value of public school education between native americans who have at least one relative who attended indian boarding school and native americans who have no family experience with indian boarding school. dr. robbins contacts 35 native american participants in each group. he wants each group to include younger as well as older adults, and a mix of male and female participants. he asks each person to complete a survey about their attitudes toward public education. the design of this study is: