There is a field of social psychology, studying the impact of social forces on an individual's social behavior.
There is a field of social neuroscience, but the "social" focus is again generally on the interaction among individuals.
Sociology has focused on social entities larger than the individual: whole societies, organizations, hierarchies, polities, cultures, social movements, stratification, social network formation.
I'm suggesting a different focus: There are so many new understandings, from neurological mirroring, to embodied cognition, that could infuse a field of "Psychological Sociology." Is there such a field hiding in some academic department somewhere? I see threads of such a field of study in some academic papers, in Sociology and in Economics, but not a cohesive systematic approach to the impact of psychological tendencies and processes on social entities.