Idiom
refresh your memoryrefresh (your) memory
to help you to remember something.McNamara has refreshed his memory by listening to a tape recording of the meeting.
Usage notes: often used by lawyers when asking questions in a trial:
“Will this photograph I now show you refresh your memory?”
Edited at refresh & trf here. I'm tempted to label "law" but it is not confined to legal contexts. It is a common cliche in legal proceedings, however. Legal stenographers have a shorthand abbreviation for it. --SL, 8/02