Which mechanism does the brain primarily use to determine the location of a stimulus?

• A. By processing all sensory information in the cerebellum
• B. By relying solely on memory of previous stimuli
• C. By comparing the timing and intensity of sensory input received by both hemispheres
• D. By activating only the occipital lobe regardless of stimulus type

Answer: (C)

Verified step by step guidance

1. Understand that the brain determines the location of a stimulus primarily through spatial processing of sensory input.
2. Recognize that sensory information from stimuli is received by both hemispheres of the brain, often with slight differences in timing and intensity.
3. Learn that the brain compares these differences in timing (which side receives the signal first) and intensity (which side receives a stronger signal) to localize the stimulus.
4. Note that this comparison process mainly involves sensory areas in the cerebral cortex rather than the cerebellum or relying solely on memory.
5. Conclude that the mechanism of comparing timing and intensity of sensory input from both hemispheres is the primary way the brain determines stimulus location.