title: When expectation fails.
mesh_terms: D000544:Alzheimer Disease / Q000523:psychology* / Q000628:therapy; D000779:Anesthetics, Local / Q000008:administration & dosage; D006801:Humans; D008012:Lidocaine / Q000008:administration & dosage; D015990:Placebo Effect; D017397:Prefrontal Cortex / Q000503:physiopathology
chemical_list: D000779:Anesthetics, Local; D008012:Lidocaine