Final answer:
Phantom sensation refers to sensations where the amputated limb existed. It is a common experience among amputees and is related to the brain's ability to reorient itself. Techniques like the mirror box can trick the brain into believing the missing limb is still there.
Step-by-step explanation:
After an amputation, a resident may experience phantom sensation, which refers to sensations where the limb existed even though the limb is no longer there. This phenomenon is experienced by many amputees and is believed to be related to the brain's ability to reorient itself, known as neural plasticity. The brain can be tricked into thinking the missing limb is still there by using techniques such as the mirror box.