Great Minds
beginnerneurosurgeryhistorypioneer

Wilder Penfield

Mapped the human brain through direct electrical stimulation during surgery. Created the famous homunculus showing body representation in the motor and sensory cortices.

Wilder Penfield

© Wikimedia · public-domain

Wilder Penfield pioneered the Montreal Procedure for epilepsy surgery, using electrical stimulation of the exposed cortex to map sensory and motor functions in awake patients. His homunculus diagrams — distorted body maps on the motor and somatosensory cortices — remain iconic. Penfield also stimulated temporal lobe structures to evoke vivid memory-like experiences, foreshadowing modern memory research.

The brain holds the secrets of the mind.

18911976 · American-Canadian

Key Discoveries

Motor homunculus
Sensory homunculus
Memory stimulation
Cortical mapping

Gallery

Sensory homunculus

Sensory homunculus

Cortical mapping

Cortical mapping

Motor cortex

Motor cortex

Videos

2-Minute Neuroscience: Somatosensory Cortex

Neuroscientifically Challenged

Watch

Somatosensory System — MIT OCW

MIT OpenCourseWare

Watch