Recent research[12] suggests that "the brain is a large predictive machine, constantly comparing incoming sensory information and current experiences against stored knowledge and memories of previous experiences and predicting what will come next." Wow. That is a great description of what someone in Internal mode does! They do not ignore external stimuli, they evaluate them against what they already know. However, when someone has an extreme Internal Pattern, they tend to automatically discard any outside information that contradicts what they already believe. (See the Macho Test© below)

