Final answer:
The brain reduces an older person's awareness of sensory losses by automatically filling in the missed sights and sounds.
Step-by-step explanation:
The brain reduces an older person's awareness of sensory losses by automatically filling in the missed sights and sounds. In the cerebral cortex, sensory processing begins at the primary sensory cortex, then proceeds to an association area, and finally, into a multimodal integration area. This integration allows the brain to fill in the gaps of sensory information by creating a cohesive perception of the surroundings.