Evaluating the Neurocomputational Mechanisms of Explore-Exploit Decision Making in Older Adults

Participants will receive cTBS (50Hz stimulation at 80% AMT for 40 seconds). Stimulation will be applied to either the target area (frontal pole or IFG) or control area (vertex). Targeting of each region will be achieved using a frameless neuronavigation system with a Polaris Spectra infrared camera that enables stimulation to be centered on specific coordinates in Montreal Neurological Institute space. We will use coordinates \[x,y,z\] = \[35,50,15\] for frontal pole and \[x,y,z\] = \[56,16,22\] for right IFG based on the location of our activations in the young pilot group (Figure 4). The vertex control site is defined as the Cz position of a 10-20 EEG system. After receiving TMS, participants will stare at a white wall for 1 minute before performing the Horizon Task for 45 minutes.