Abstract

Many extant theories of placebo focus on their causal structure wherein placebo effects are those which originate from select features of the therapy (e.g. client expectations or ‘incidental’ features like size, and shape). Although such accounts can distinguish placebos from standard medical treatments, they cannot distinguish placebos from everyday occurrences e.g. when positive feedback improves our performance on a task. Providing a social epistemological account of a treatment context can rule out such occurrences, and furthermore reveal a new way to distinguish clinical placebos from standard medical treatments.