Final answer:
The primary projection area for audition, in the temporal lobe, is Brodmann's areas 41 and 42, which are essential for auditory processing.
Step-by-step explanation:
The primary projection area for audition in the temporal lobe of the cortex is known as Brodmann's areas 41 and 42, located in the superior temporal lobe. These areas are crucial for processing auditory information - a key function of the temporal lobe, which is also involved in speech, memory, and emotion processing within the brain. This localization demonstrates the intricate link between structural landmarks within the cerebral cortex and their corresponding functions.