1. A method of screening or treating information processing deficiencies in a young infant comprising: a) administering to said infant a sequence of auditory stimuli comprising at least one control stimulus and at least one test stimulus, wherein the at least one control stimulus differs from the at least one test stimulus by at least one of amplitude, frequency, pitch, and duration, the at least one control stimulus and the at least one test stimulus are administered within about 10 −3 seconds to about 3 seconds of each other, the infant is habituated to the at least one control stimulus; and b) recording a response of the infant to the at least one test stimulus or the at least one control stimulus.