Colossal agenesis—the congenital absence of a corpus callosum—occurs not uncommonly in humans and is often discovered by chance at postmortem; people with this condition can lead reasonably normal lives, and casual observers would not notice any functional problem.

factualpending

Speaker

Iain McGilchrist

Evidence Quote

it's not uncommon for people to be born with what's called colossal agenesis in other words they don't have a corpseconosum and it's often a chance finding a postmortem so quite clearly um the finding that you can sever the connection and people can lead a reasonably normal life

Source

Iain McGilchrist, Rupert Sheldrake and Alex Gomez-Marin in conversationDr Iain McGilchrist
Created: 8/12/2026, 6:27:29 PM

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