Even if the patient had the experience a long time ago, its memory was as rich "as though it was yesterday, " Laureys said.

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The minimum wage has been a part of American life for so long now that very few citizens have any memory of a time when it did not exist.

CNN: What if there were no minimum wage?

Because of the grant that went to this company, we can hear the sounds of machines humming and people doing their work, instead of just the ghostly silence of an emptied-out building and the memory of workers who were laid off a long time ago.

WHITEHOUSE: Creating a Green Impact Zone