Jean Mandler

Jean Mandler was a distinguished professor emerita in Cognitive Science and a longtime member of the Psychology Department at the University of California, San Diego. Born on November 6, 1929, in Oak Park, Illinois, she graduated with highest honors in Philosophy from Swarthmore College in 1951 before earning her Ph.D. in Psychology from Harvard University in 1956. She joined UCSD in 1965 with her husband, George Mandler, the founding chair of the Psychology Department. Due to nepotism rules at the time, her initial appointment was part-time in Biology, but she received her first regular position in Psychology in 1973, rising to full professor in 1977. In 1986, she became one of the inaugural faculty members of the world's first Department of Cognitive Science, serving there until her retirement in the mid-1990s. Thereafter, she held the title of Distinguished Research Professor of Cognitive Science at UCSD and visiting professor at University College London, dividing her time between La Jolla and London while maintaining strong connections with the university.

Mandler's research pioneered theories of cognitive development, particularly the origins of conceptual thought in infancy. She advanced the idea that infants build a rich conceptual system from spatial primitives, encapsulated in her framework 'how to build a baby,' which demonstrated complex cognition underlying language and thought. She innovated methods like the object examination technique to assess infant knowledge. Major publications include her seminal book The Foundations of Mind: Origins of Conceptual Thought (Oxford University Press, 2004), recipient of the American Psychological Association's Eleanor Maccoby Book Award (2006) and the Cognitive Development Society's Best Authored Book Award (2007); Stories, Scripts, and Scenes: Aspects of Schema Theory (1984); 'How to Build a Baby II: Conceptual Primitives' (Psychological Review, 1992); 'On the Spatial Foundations of the Conceptual System' (Language and Cognition, 2010); and 'On the Origins of the Conceptual System' (American Psychologist, 2007). Her contributions earned the APA Distinguished Scientific Contribution Award (2007), fellowship in the American Academy of Arts and Sciences and the Society of Experimental Psychologists, and service as associate editor of Psychological Review, on journal boards and NSF panels, and chair of the Psychonomic Society. Mandler played a key role in establishing UCSD's Cognitive Science Department and profoundly shaped understanding of early concept formation and the foundations of mind. She passed away on March 14, 2025.