Question:
After a right limb amputation, the patient is experiencing severe phantom limb pain. What is the mechanism behind this?
After a right limb amputation, the patient is experiencing severe phantom limb pain. What is the mechanism behind this?
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Phantom limb pain is often a result of cortical reorganization, where sensory input from nearby areas overlaps with the region of the brain corresponding to the missing limb.
Updated On: Mar 24, 2025
- Projection of adjacent fibers to overlap to right sensory cortex
- Projection of adjacent fibers to overlap to left sensory cortex
- Expansion of right sensory cortex
- Expansion of left sensory cortex
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The Correct Option is B
Solution and Explanation
Phantom limb pain occurs due to the reorganization of the sensory cortex after limb amputation. The adjacent areas of the sensory cortex can begin to project onto the area of the cortex that previously received sensory input from the amputated limb, leading to sensations of pain in the "missing" limb.
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