1. Robert B. Zajonc, 5th ISR Director

    May 31, 2017 Robert Zajonc at his desk

    Zajonc, a social psychologist known for his work on social and cognitive processes, had been director of the Research Center for Group Dynamics. In addition to demonstrating the mere exposure effect, Zajonc’s contributions included co-developing the Confluence Model, a mathematical model of the effect of birth order and family size on IQ scores.