Much of neuroscience is concerned with the way cells in the nervous system function and how neural circuits are formed in a physical sense. However, this is no longer the only approach to the discipline. Cognitive and behavioural neuroscience is more focussed on the psychological aspects of neural circuitry, such as how repeated behaviour might form certain brain networks. This is an expanding area of neuroscience which links in with social studies very closely, albeit from the point of view of brain function. Essentially, you might boil it down to how the way cognitive functionality impacts on the physical aspects of the brain and, conversely, how the physical make up of the brain impacts on cognitive functionality.