How do you measure results in your science studies?

We conduct studies using various neuropsychological tests and three types of brain imaging to understand the extent and nature of improvements. The neuropsychological tests explore such fields as memory, processing speed/response time, attentiveness and language fluency. Brain imaging indicates areas of increased activity in the brain. On a more human level, we expect to see people become more engaged, more communicative and happier, which are very important but softer qualities to measure.