Case of Subtle Brain Toxicity Jacks Story

Jack Kaufman, a tall, slim fifty-three-year-old bespectacled man living alone, came to see me in a state of considerable agitation. The previous week, he had lost the keys to his house and was forced to retrieve the duplicate keys from a neighbor, who luckily still had the extra set that Jack had entrusted to her. A few days later, Jack discovered that he had made a major error in his calculations for an office budget. He worked as an accountant and couldn't recall ever having made such a mistake. He said that his fear about losing his memory was