APA Dictionary of Psychology

measures of intelligence elicited by observing event-related potentials (ERPs) in the brain in response to various kinds of stimuli. These measures show reliable correlations with traditional measures of intelligence, with the level of the correlation depending on the particular potential being measured. For example, P300, a positive potential observed roughly 300 ms after presentation of a stimulus, tends to be related to effectiveness in coping with novelty and appears to be related to intelligence.