Sunday, December 07, 2008

H. M., an Unforgettable Amnesiac, Dies at 82 - Obituary (Obit) - NYTimes.com

H. M., an Unforgettable Amnesiac, Dies at 82 - Obituary (Obit) - NYTimes.com



On Tuesday evening at 5:05, Henry Gustav Molaison — known worldwide only as H. M., to protect his privacy — died of respiratory failure at a nursing home in Windsor Locks, Conn. His death was confirmed by Suzanne Corkin, a neuroscientist at the Massachusetts Institute of Technology, who had worked closely with him for decades. Henry Molaison was 82.

...

H. M. could recount childhood scenes: Hiking the Mohawk Trail. A road trip with his parents. Target shooting in the woods near his house.

“Gist memories, we call them,” Dr. Corkin said. “He had the memories, but he couldn’t place them in time exactly; he couldn’t give you a narrative.”

He was nonetheless a self-conscious presence, as open to a good joke and as sensitive as anyone in the room. Once, a researcher visiting with Dr. Milner and H. M. turned to her and remarked how interesting a case this patient was.

“H. M. was standing right there,” Dr. Milner said, “and he kind of colored — blushed, you know — and mumbled how he didn’t think he was that interesting, and moved away.”

...

In the last years of his life, Mr. Molaison was, as always, open to visits from researchers, and Dr. Corkin said she checked on his health weekly. She also arranged for one last research program. On Tuesday, hours after Mr. Molaison’s death, scientists worked through the night taking exhaustive M.R.I. scans of his brain, data that will help tease apart precisely which areas of his temporal lobes were still intact and which were damaged, and how this pattern related to his memory.

Dr. Corkin arranged, too, to have his brain preserved for future study, in the same spirit that Einstein’s was, as an irreplaceable artifact of scientific history.

“He was like a family member,” said Dr. Corkin, who is at work on a book on H. M., titled “A Lifetime Without Memory.” “You’d think it would be impossible to have a relationship with someone who didn’t recognize you, but I did.”

In his way, Mr. Molaison did know his frequent visitor, she added: “He thought he knew me from high school.”

Henry Gustav Molaison, born on Feb. 26, 1926, left no survivors. He left a legacy in science that cannot be erased.

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