An efficient, objective testing method and
system for evaluating changes in mental function is described. The method and
system are based on measuring an individual's behavioral responses and
brain function during a brief
cognitive test battery and
passive control conditions. The method and
system is designed to assess an individual's fundamental cognitive functions, and whether those functions have been significantly affected by a variety of factors such as progressive
disease processes, medication, stress, fatigue, training, or the passage of time. The method and system can be used to determine whether drugs being evaluated to treat diseases or conditions affecting cognitive
brain function have a significant positive effect on delaying or improving the symptoms of such a
disease or condition, especially during clinical trials for
drug approval and subsequent marketing. The method and system may also be employed as part of the successful diagnosis or ongoing treatment of neurological diseases or conditions that directly or indirectly affect human
neurocognitive performance. The method and system may also be used to determine transitory changes in overall cognitive function due to
emotional stress or fatigue, and more
long lasting changes in overall cognitive function following training and educational programs.