How Big Is The Brain’s Penis Area?

Rolf Degen has an interesting post on the question of how much of the brain is devoted to processing touch stimuli from the penis.
The Fake Homunculus: A new book about sex depicts a beefed-up representation of the penis in the human brain

Everybody has once already seen a picture of the Sensory Homunculus – a humanized image of the relative amount of cerebral cortex space devoted to processing the tactile input from the different body parts. It appears grotesquely disfigured, because so

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