A patient presents with hypersensitivity in the distal forearm following a recent peripheral nerve injury. The physical therapist initiates a desensitization program involving gradual exposure to various tactile stimuli. What is the primary mechanism through which desensitization training aids in reducing hypersensitivity?

1. Inhibition of nociceptor activity
2. Enhancement of neuroplasticity and cortical reorganization
3. Reduction of peripheral nerve inflammation
4. Stimulation of axonal growth

Watch the video version on our Youtube channel:  https://youtu.be/TmoLHI_OPto