The pattern of cortical deactivation consistent with Attention Deficit Disorder is evident on both the baseline scan and the concentration scan. However, for it to be true Attention Deficit Disorder, the deactivation must worsen on the concentration scan. The brain pattern indicative of Attention Deficit Disorder is found in the prefrontal cortex. The prefrontal cortex is responsible for attention, concentration and focus. In a person not affected by ADD, the prefrontal cortex should activate with concentration. In a person who has ADD, their prefrontal cortex does exactly the opposite - it deactivates. They find that the harder they try to concentrate and focus, the less they are able to. Below are examples of normal brain scans and ADD brain scans. Please contact our office should you desire further information about neuroimaging or ADD.