Two-Day-Old Babies Listened to Recordings of Human Speech

Multiple Choice

Two-day-old babies listened to recordings of human speech. Half of the time the speech was normal, half of the time it was played backwards. How did the babies react?

A) They reacted similarly to both sets of stimuli.
B) Blood flow in the babies' left hemisphere increased for the normal speech but not for the backwards speech.
C) Blood flow in the babies' left hemisphere increased for the normal speech, while blood flow in the babies' right hemisphere increased for the backwards speech.
D) Their brains reacted to both sets of stimuli only when they were played at an abnormally slowed rate.