AP PSYCHOLOGY

Detailed explanation-1: -Detection of interaural differences begins in the nucleus laminaris, which receives input from the magnocellular cochlear nuclei (Taka-hashi and Konishi, 1988a).

Detailed explanation-2: -Sound waves enter the outer ear and travel through a narrow passageway called the ear canal, which leads to the eardrum. The eardrum vibrates from the incoming sound waves and sends these vibrations to three tiny bones in the middle ear. These bones are called the malleus, incus, and stapes.

Detailed explanation-3: -Being able to localize sounds helps us make sense of the world around us. The brain works out sound direction by comparing the times of when sound reaches the left versus the right ear. This cue is known as interaural time difference, or ITD for short.

Detailed explanation-4: -The tiny hair cells in our inner ear send electrical signals to the auditory nerve which is connected to the auditory centre of the brain where the electrical impulses are perceived by the brain as sound. The brain translates the impulses into sounds that we know and understand.