Causal Role of Frontostriatal Circuitry in Goal-directed Behavior

TMS will be delivered in a delta-beta pattern in which triplets of pulses delivered at 20 Hz (50 milliseconds between each pulse) are sent every 3 Hz (333 milliseconds between the start of each triplet).

TMS will be delivered in a theta-gamma pattern in which triplets of pulses delivered at 50 Hz (20 milliseconds between each pulse) are sent every 5 Hz (200 milliseconds between the start of each triplet).

TMS will be delivered in an arrhythmic pattern in which pulses are delivered with a random inter-pulse interval. The number of pulses and duration is matched to that of the Delta-beta TMS and Theta-gamma TMS.