Cognition and Ultrasound

Inclusion Criteria: * 18 years of age or older * Speak English (as assessed by their ability to read/answer survey questions) * May be required to score in the appropriate range on self-report measures Exclusion Criteria: * They have a neurological disorder which may impact their fMRI scan or cause their reaction to LIFU to differ from that of healthy adults. * They take any psychoactive medication. * They are unable to undergo fMRI scanning due to a contraindication such as claustrophobia, unremovable piercings, pregnancy, the presence of medical devices such as pacemakers, or a movement o…