Because of the nature of our study, we are only able to accept participants who meet the following criteria:
*Right-handed
*Normal or corrected-to-normal vision or hearing
*No injuries to their hands or arms
*Have no braces on their teeth
*No current or past history of psychological problems
*No treatment with medications that affect the brain (including antidepressants, sedatives, sleeping pills, anti-anxiety medications, anti-seizure medications, steroids, thyroid hormones, insulin, and some asthma and allergy medications)
*No history of neurological conditions or head injuries (for instance, seizures, accidents that caused a loss of consciousness, etc)
*No history of learning or attention problems
*No birth injuries including prematurity
*No chronic health conditions, genetic conditions, etc
*Little experience with nicotine, alcohol, and other substances
*No conditions or implants that would make MRI scanning unsafe
If you are interested in the study, we conduct a thorough phone interview to determine whether or not you are eligible to participate.