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Understanding the gift of endless memory
"Does hypochondria count? It's like, 'Oh, I hope I don't get this. I hope I don't get that disease,'" Brad Williams asked.
Asked if he has a thing about germs, he told Stahl, "I wash hands frequently."
"So do I. In fact, I dropped my keys when I was in a hurry drivin' down here. And I went, alright, so I went back in and I, like, ram I washed 'em off," Bob Petrella added.
"Can you conclude there's a connection? Or is it still way too early?" Stahl asked Cahill.
"Because it's showing up in one fashion or another in all of them, I'd say it's our biggest clue," he replied.
And when you think about it, they even seem to look for ways to organize their memories.
"The thing that is most pleasurable is categorizing any event. Anytime I went bowling in my life, any wedding," Rick Baron said.
He told Stahl he started that when he was six years old.
"Sometimes what I do is, I'll go back July 14th as far back as I can remember, I'll just go July 14th, '67, that happened. And then, maybe I won't remember '68, but I'll remember '69 and '70," Petrella said, with others nodding.
Louise Owen even compares dates. "I'll scroll all the way back to 1985. I'll be like, 'Well, which were better, March thirds or March fourths a year ago? Two years ago? Three years ago?' And go all the way back. It's sort of like mental gymnastics," she explained, laughing.
There is a certain irony to the fact that it is McGaugh who is studying this phenomenon, because he is known in the field of memory for discoveries these people seem to defy.
His work with rats, like one that doesn't know there is a platform hidden below the surface of a water tank, proved the role of adrenaline in making strong memories. The rat swims around the edge, then eventually ventures out and by chance bumps into the platform. The next day he'll find it just a little bit faster.
But another rat, that learned where the platform was the day before, then received a shot of adrenaline immediately afterward; the rat immediately swam to the platform.
Adrenaline actually made this rat's brain remember better, and McGaugh says the same thing happens in people - when we experience something emotional, positive or negative, our bodies release adrenaline, searing those memories into our brains more strongly.
"What can you and I do, right now, to make sure we remember this conversation?" Stahl asked. "I could kick you."
"Yeah," McGaugh replied, laughing. "Or I could embarrass you."
"Most of my research is with laboratory rats. And suppose I said, all of a sudden, 'Oh, and I'm gonna demonstrate to you.' And I drop about six rats right at your feet," he added.
"I'd remember. Believe me, I'd remember," she replied.
But people like Louise Owen don't need such events to remember things.
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