Famous brain surgery patient H.M. retained a chunk of hippocampus
Amnesia probably due to the loss of other regions, connections
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/01/ls_3_free.jpg?fit=860%2C460&ssl=1)
MEMORIES ON ICE Embedded in a frozen gelatin block, Henry Molaison’s brain is about to be sliced and imaged.
J. Annese