While photographing shelves of human brains stored away in a closet at the University of Texas for his next book, Adam Voorhes happened upon a truly unique find: a brain with no folds. The lack of grooves (sulci) and folds (gyri) that characterize a human brain are due to a rare condition called lissencephaly. The disorder is caused by abnormal neuronal migration during embryonic development. Click here to read full article...
Source: https://www.iflscience.com/brain/lost-and-found-smooth-human-brain/