Additional Study Information: The Learning Lab at Columbia University is conducting a new behavioral study on learning, memory, and decision-making. We're looking for people between the ages of 50 and 75 years old to take part in a 2- hour research study. The study takes place at the Jerome Greene Science Center (129th and Broadway). Participants will be paid $20/hr to play computerized learning games that involve learning, memory, and decision-making. Eligible participants must have normal or corrected-to-normal vision, no past history of neurological or psychological disorders, and no traumatic head injury. If you are interested in this study, please contact through email and a researcher will contact you to do a full screening to determine if you are eligible.