Henry Molaison American with memory loss Date of Birth: 26.02.1926 Country: USA

Biography of Henry Molaison

Henry Gustav Molaison, also known as Patient H.M., was an American who became one of the world's most famous patients with memory loss. Born in 1926 in Hartford, Connecticut, he was an ordinary child until the age of seven when he was involved in a serious bicycle accident that triggered severe epilepsy. As he grew older, his seizures became increasingly dangerous, often causing him to lose consciousness. Eventually, Molaison had to quit his job and move in with his parents for his own safety.

In 1953, Molaison came under the care of neurosurgeon William Beecher Scoville, who performed a revolutionary operation to alleviate his seizures. However, the procedure involved removing a portion of Molaison's brain. Initially considered successful, the surgery was later deemed a "tragic mistake." Remarkably, Molaison was conscious during the operation, having only received local anesthesia.

Although the surgery reduced his seizures, it had an unforeseen consequence on Molaison's memory. His most recent memories were quickly erased from his brain, leaving him with only memories from before 1953. His memory could only retain information for about 20 seconds before experiencing a complete blackout. This peculiar condition caught the attention of neurosurgeons, challenging previous assumptions about the distributed nature of human memory in the brain.

Molaison's life became a prolonged medical experiment. He was unable to remember anything that occurred after his operation, remaining stuck in time. Despite this, he could perform basic household tasks, go shopping, and even learned to play the piano, although he had no recollection of how he acquired this skill.

Molaison's case was considered an unprecedented anatomical study, making an immeasurable contribution to the field of neuroscience. Even after his death in 2008 at the age of 82, his brain was preserved and continues to be studied at the University of California in San Diego. His legacy opened new avenues of research and sparked the development of new scientific disciplines.

In his final years, Molaison resided in a nursing home, and upon his passing, newspapers ran headlines stating, "Man without a Memory Dies."