Which statement best defines sensation?

• A. Detection of physical stimuli by sensory organs.
• B. Interpretation of sensory input.
• C. Integration of information for action.
• D. Memory retrieval from prior experiences.

Answer: (A)

Sensation is the initial detection of physical stimuli by the body's sensory receptors. In music listening, this means the ear detecting sound waves and translating them into neural signals—basic features like pitch, loudness, and timbre at the level of sensory organs. The statement that best defines sensation focuses on this raw detection, not on how we interpret or use those signals.

Perception, by contrast, is the brain’s interpretation and organization of those signals into meaningful experiences—recognizing a note’s pitch, identifying a melody, or sensing emotional qualities. The other options describe processing beyond detection: interpreting input, integrating information to guide action, or retrieving memories, all of which occur after sensation has taken place. For example, you might sense a note audibly, then perceive its pitch and rhythm, and later recall where you’ve heard it before.