Alice and Beatrice are identical twins who were raised together. Alice has been diagnosed with anorexia nervosa, whereas Beatrice has not developed the disorder, though she exhibits high levels of perfectionism. A brain imaging study of Alice reveals altered serotonin activity in her frontostriatal circuits and reduced sensitivity in her reward pathways when presented with food-related stimuli.
Discuss genetic and neural explanations for anorexia nervosa. Refer to Alice and Beatrice in your answer.
6 exam-style questions on AQA A Level Psychology Biological explanations for anorexia nervosa. Each one has a worked solution and a mark scheme showing where the marks go.