March 30, 2005
Social Representations Within the Human Prefrontal Cortex

I hypothesize that structured event complexes (SEC) are stored in the human prefrontal cortex. I propose that the key elements of the SEC include: (1) thematic macro-knowledge that must be abstracted across events, (2) thematic micro-knowledge that can be abstracted within-events, (3) specific grammatical properties, (4) sequential and temporal codes specific to the SEC, and (5) category-specific domains of storage. When activated in concert with knowledge stored in other cortical regions (e.g., objects, faces, motor actions), the SEC participates in the formation of various kinds of social episodes. In my presentation I will provide supportive evidence for the existence of specific social representations in human prefrontal cortex relying on both human lesion studies and functional neuroimaging studies conducted in my Section. The results suggest that both ventromedial and dorsolateral prefrontal cortex are involved in social cognition with each region having a specific role. I will conclude the presentation by arguing for the methodological advantage of using a conceptual framework, and how my framework can be distinguished from other popular views of the social functions of the prefrontal cortex.