The brain is a very sophisticated processing organ, which can be better understand by multiple ways of evaluation. Neurocognitive testing tells us what the brain can do with ease, what it struggles to do, and what it cannot do. Brain mapping tells us about physiological patterns of activity that correlate and/or cause these patterns of strengths and weaknesses. In the hands of an expert neuropsychologist, these neurocognitive test results are examined in conjunction with the brain mapping findings, to ensure that we understand the exact relationships between brain function and brain activity. A brain map alone is very helpful, but the entire picture has to be understood in order to construct the best treatment plan possible.