What does sensory processing refer to?

• A. The nervous system's processing of input
• B. A simple automatic reflex
• C. Visual processing only
• D. Conscious thought about sensations

Answer: (A)

Sensory processing is about how the nervous system receives, encodes, transmits, and interprets information from all the senses. It starts with receptors detecting stimuli, then transduction converts those signals into neural activity, which travels to the brain where signals are organized and integrated with context, attention, and prior experience to form perception and guide behavior. This process spans multiple senses and levels of processing, and much of it happens without conscious awareness.

That broader, integrative view explains why the nervous system’s processing of input is the best description. It isn’t limited to a single reflex, a single sense like vision, or merely conscious thought about sensations.