Last revised by Assoc Prof Craig Hacking on 16 Aug 2018

A homunculus is a topographical-organized map of the proportional representation of the contralateral somatosensory or motor neurons on the cortex or passing though a part of the brain. The maps are often comical, as the body parts are disproportionally represented compared to their physical size.

There are 3 homunculi of importance:

History and etymology

Homunculus is latin for "little person".

ADVERTISEMENT: Supporters see fewer/no ads

Cases and figures

  • Motor and sensory homunculus (illustrations)
    Drag here to reorder.
  • Sensory homunculus
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.