Fenhua got into his car and turned on the radio. He turned the volume up to a comfortable level. After a few minutes of driving, however, the once-comfortable level seemed to be too low, so Fenhua turned up the volume. What has happened?

• A. Transduction
• B. Sensory adaptation
• C. Habituation
• D. Sensory fatigue

Answer: (B)

Verified step by step guidance

1. Identify the key concept: Fenhua's experience is related to changes in perception over time.
2. Understand sensory adaptation: This is a process where sensory receptors become less sensitive to constant stimuli, leading to a decreased response over time.
3. Differentiate from habituation: Habituation is a decrease in response to a stimulus after repeated exposure, but it involves a cognitive component, unlike sensory adaptation.
4. Consider sensory fatigue: This refers to a temporary inability to perceive a stimulus due to overexposure, which is not the case here as Fenhua can still hear the radio.
5. Conclude that sensory adaptation is the most fitting explanation, as Fenhua's auditory system has adjusted to the constant sound level, making it seem quieter over time.