![]() ![]() However, as soon as information left his mind – like when he was distracted thinking about something else – he was unable to bring that information back. For example, he could comfortably engage in meaningful conversation. The act of cutting out his hippocampus meant that Henry would suffer from anterograde amnesia for the rest of his life.Įven after his surgery, Henry maintained his reasoning and language capabilities. This surgery resulted in the expected alleviation of seizures however, the limited knowledge of the brain basis of memory at the time did not allow Scoville to predict the severe and lasting memory impairments that also resulted from this surgery. A part of his brain that included a pair of structures known as the hippocampus was surgically removed to treat Henry’s epilepsy. William Beecher Scoville, who had conducted brain surgery on Henry in an attempt to control his severe epileptic seizures. His case was first reported in the 1950’s by Canadian psychologist, Brenda Milner and an America neurosurgeon, Dr. Henry suffered from anterograde amnesia, a memory disorder that reflects impairments in the ability to form new long-term memories of ongoing experiences. Henry Gustav Molaison, known for decades as HM, is one of the most extensively studied cases. Stefan Köhler: Scientists have learned a lot about human memory from systematically studying individuals with memory disorders. ![]() Köhler spoke about memory and the brain at a London Public Library talk. Köhler and other researchers learn how memory is processed in the brain, and what happens when this is impacted by a brain injury or neurological disease.Įarlier this year, Dr. Examining patients with amnesia has helped Dr. Some of the features of amnesia captured in these movies reflect what scientists have learned about this condition over the past several decades.Īmnesia is memory loss caused by damage to areas of the brain that are essential for memory processing. When you think of amnesia, you may think of Hollywood movies including 50 First Dates, The Bourne Identity, or Memento. His work has also led him to examine brain injuries or other neurological diseases that can cause amnesia. His research focuses on how the brain forms, stores, and recovers memories. Stefan Köhler is the Chair of Cognitive, Developmental and Brain Sciences in the Department of Psychology at Western University who studies human memory and its disorders. These are rare forms of memory loss that can greatly impact those who experience them, and alter their sense of who they are and how they live their lives.ĭr. ![]() Imagine suffering a traumatic brain injury that erases all memories of your personal past, or your ability to create new memories of your future. Amnesia and memory processing: Q&A with Dr. ![]()
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