Participation will require up to three visits. One visit will take up to an hour, and the other visits will each take up to three hours each. During the first visit, participants will be consented, and their brains will be scanned using magnetic resonance imaging. Participants will receive rTMS during two study visits.

In the rTMS procedure a small plastic coil will be placed next to the participant's head. The position of the coil will be guided by neuro-navigational software utilizing the individual's MRI scan. The coil will be placed over the relevant brain region using the Brainsight TMS-MRI co-registration system for visualizing the coil position with respect to the participant's individual MRI scan. The coil will then generate a series of repetitive magnetic pulses, and stimulation will occur, disrupting typical function of the targeted brain region.

Memory accuracy will be assessed using a remember/familiar scale that was created for this study, based on common scales used in basic memory research. This instrument is a a 3-option categorical forced-choice self-report measure that assesses the accuracy of a participant's memory for an item. This measure assesses whether the participant has no conscious memory of the item (New), whether they have a specific conscious recollection of having seen the item before (Remember), or whether they have a conscious sense of having seen the item before but they cannot recollect any specific details relating to the item (Familiar). This scale will be scored by calculating the number of Hits (old items endorsed as remembered/familiar), Misses (old items endorsed as new), Correct Rejections (new items endorsed as new), and False Alarms (new items endorsed as familiar/remembered), and then calculating a sensitivity index (d') for each participant.

Memory confidence will be assessed using a confidence scale that was created for this study, based on common scales used in basic memory research. The confidence scale is a 4-point ordinal forced-choice self-report measure that assess the subjective confidence a participant feels in their memory for an item. The scale's choices are 1 = Little Confidence, 2 = Some Confidence, 3 = Moderate Confidence, and 4 = High Confidence. The scale's responses will be averaged for each participant.

Memory vividness will be assessed using a vividness scale that was created for this study, based on common scales used in basic memory research. The vividness scale is a 4-point ordinal forced-choice self-report measure that assess the subjective vividness a participant experiences of their memory for an item. The scale's choices are 1 = Not Vivid, 2 = Slightly Vivid, 3 = Moderately Vivid, and 4 = Highly Vivid. The scale's responses will be averaged for each participant.