Your goal is to measure how reaction times vary depending on context. In each trial, try to react as quickly as possible after you see the on-screen prompt.
Reaction time is one of the key external measures of the inner workings of the human brain, and it is affected by many factors. You'll be challenged to test your reaction time under different conditions and then compare the results. You'll find out how processing in the brain changes reaction time under different conditions: being distracted, being presented with emotionally charged stimuli, or being faced with increasing complex tasks.