The Human Brain : From Neurone to Nervous System


  1. A phantom limb is a common phenomenon in patients who have had a limb amputated; it consists of a sensation that the limb is still attached to the body and is the origin of the sensation, even though the limb no longer exists. The missing limb often feels shorter than previously.

  2. The neuroma hypothesis is an older explanation of the observations, but there is evidence that the reasons for these abnormal sensations is more complex.