Final answer:
Monaural cues are important for sound localization when a sound source is directly above, below, in front, or behind the listener.
Step-by-step explanation:
When information from only one ear is involved, it is known as monaural cues. Monaural cues are important for sound localization when a sound source is directly above, below, in front, or behind the listener. They are based on the fact that the sound waves received by both ears would be identical for such sounds. Monaural cues are helpful in locating sounds that occur in these positions.