The occipital lobe is responsible for processing visual information from the eyes.
It is important to being able to correctly understand what your eyes are seeing. These lobes have to be very fast to process the rapid information that our eyes are sending.
The temporal lobe on the other hand is responsible for processing auditory information from the ears (hearing).
This lobe mainly revolves around hearing and selective listening. It receives sensory information such as sounds and speech from the ears. It is also the key to being able to comprehend, or understand meaningful speech.
The average human brain weighs about 1,400 grams (3 lb). It can be divided down the middle lengthwise into two halves called the cerebral hemispheres. Each cerebral hemisphere is divided into four lobes (frontal lobe, parietal lobe, temporal lobe and occipital lobe) by sulci and gyri. Learn more about the lobes of the brain at Washington.edu