HIST10014 Lecture Notes - Lecture 30: Temporal Lobe, Henry Molaison, Anterograde Amnesia
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Notes - lessons from anterograde amnesia: case of h. m. Removal of medial portion of both temporal lobes, including the hippocampus. Hm acquired a severe and permanent inability to acquire new information. Hm"s general condition has been described as dense anterograde amnesia, as well as temporally graded retrograde amnesia. Hm was unable to form new long-term memories of new events or new semantic knowledge so he basically lived in the past. Since hm did not show any memory impairment before the surgery, the removal of the medial temporal lobes can be held responsible for his memory disorder. After operation this young man could no longer recognise the hospital sta not nd his way to the bathroom and he seemed to recall nothing of the day-to-day events of his hospital life. He did not remember the death of a favourite uncle three years earlier. Yet, his early memories were apparently vivid and intact - report.