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← Human Body & HealthAn engineer is designing a prosthetic hand with advanced tactile feedback. If the mechanoreceptors in the fingertips experience prolonged, high-frequency vibration exceeding their adaptation threshold, which consequence follows?
A)Increased receptive field sensitivity
B)Enhanced two-point discrimination ability
C)Reduction in pain threshold locally
D)Progressive desensitization to fine textures✓
💡 Explanation
Prolonged high-frequency vibration leads to sensory adaptation, specifically receptor fatigue, because the mechanoreceptors become less responsive to the stimulus over time. Therefore, progressive desensitization to fine textures occurs, rather than increased sensitivity; this causes adaptation and reduced discrimination ability.
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