Table 2.

What Is Known and Not Known in Social Neuroscience

What We Knew all along (but Sometimes Forgot)	What We Have Learned	What We Still Need to Know
All animals show social behavior. Thus, we should study not only humans.	Social processes cannot be localized to one brain region. There are distributed systems.	Are social processes different from nonsocial processes? If so, why and how?
All behavior depends on the brain. Thus, neurobiology can inform social psychology.	fMRI results cannot be interpreted easily. You need an expert community for advice.	How far down can we translate social concepts? What vocabulary can we apply across all levels?
The brain interacts with the body. Thus, body and immune system also matter.	A single discipline is inadequate to understand social behavior. You need collaboration.	What is unique about human social cognition? And how is any uniqueness represented at the neural level?
There are individual differences. Thus, we have to study individuals as well as groups.	Our concepts for social processes need revision. Not all good old theories will survive.	What are the changes in social cognition across the lifespan? How does it emerge in infancy, childhood, adolescence; how does it change in aging?