Elizabeth A. Simpson, Ph.D., joined the Laboratory of Comparative Ethology in 2011. In collaboration with her postdoctoral advisor, Dr. Pier F. Ferrari, of the University of Parma, she studies early infant social cognitive development. Dr. Simpson's research examines the ultimate and proximate mechanisms that shape individual differences in social perception. She examines whether early skills predict developmental outcomes, and whether trajectories can be altered through interventions. She currently has two programmatic lines of behavioral research, both with human and macaque infants. One research line examines face perception and the other examines action understanding. Please see a full list of my publications .