Stern completed his undergraduate studies in psychology at City College of New York in 1955. He earned his Ph.D. in psychology from Harvard University in 1960. During his doctoral studies, he worked under the direction of Jerome Bruner, one of the pioneers of the cognitive revolution in psychology.
After earning his degree, Stern joined the faculty at the University of Geneva in Switzerland, where he worked with Jean Piaget, the well-known developmental psychologist. Stern was influenced by Piaget’s work, but he wanted to take a different approach to studying infant development. He believed that a more detailed and nuanced understanding of early development was necessary, and that this could only be achieved by studying infants themselves, rather than inferring what infants know and understand from their behavior.
In the 1970s, Stern began conducting observational studies of infants in their natural surroundings, looking at how they interacted with their environment and with other people. He developed a detailed taxonomy of infant behavior, known as the “micro-analytic method,” which allowed him to record the subtle variations and nuances of infant behavior.
Through his studies, Stern developed a theory of infant development that emphasized the role of social interaction and experience in shaping early cognitive and emotional development. He argued that infants are active participants in their own development, seeking out experiences that match their interests and engaging in social interactions that facilitate their learning.
One of Stern’s most significant contributions to the field was his work on the development of the sense of self. He proposed that infants develop a sense of self through interactions with other people, and that this sense of self begins to emerge around the age of six months. He argued that the self is not a fixed entity, but rather something that is continually constructed and reconstructed through social interactions.
Stern’s work also had important implications for how we think about parenting and child-rearing. He emphasized the importance of attunement and responsiveness in parent-infant interactions, arguing that parents who are attentive to their infants’ needs and respond in a sensitive and timely manner to their cues foster optimal development.
In addition to his research, Stern was also a prolific writer, producing several influential books and articles throughout his career. His most notable works include The Interpersonal World of the Infant, The First Relationship, and Forms of Vitality.
Despite his many contributions to the field, Stern’s work also faced criticism, particularly for his emphasis on the role of experience in shaping early development. Some argued that his theory downplayed the role of biology and genetic factors in development.
Despite this criticism, Stern’s work remains highly influential in the field of developmental psychology, with many researchers continuing to explore the role of social interaction and experience in shaping early cognitive and emotional development. His legacy continues to shape our understanding of how infants develop, and his insights continue to inform our thinking about parenting and child-rearing.