The human brain is a complex organ that researchers continue to study and discover how it works. J Ripley Stroop developed a test called the Stroop effect to help measure how well a person’s selective attention works and brain processing speeds (Chudler, 2015). This test is used in screening people for dementia, schizophrenia, brain damage, stroke, and ADHD and helps determine aspects of attention and focus (Chudler, 2015). Humans are not equal in cognitive abilities thus any one test is not sufficient in determining human brainpower (Diamant, ND). Human cognitive ability is enabled by the existence of a huge knowledge base about their environment and that knowledge is updated as they grow older (Diamant, ND). Humans use their senses to
