Additional Study Information: The Social Cognitive and Affective Neuroscience (SCAN) Lab is currently running research studies to investigate beliefs about other people. This experiment examines how we learn about and update our views of people who are potential romantic partners. Participants will undergo an fMRI scan (training and scanning time will total approximately 2.5 hours) at Columbia's Zuckerman Institute (129th street and Broadway) and will be paid $60 for participation. Participants must be between 18 and 29 years old, speak fluent English, and not be in a committed monogamous relationship. If interested in participating, please contact Ben Silver at bms2202@columbia.edu or respond to this posting. The Principal Investigator of the lab is Dr. Kevin Ochsner, whose lab is located in the Department of Psychology in Schermerhorn Hall.