Today's issue of Current Biology is a special issue on memory, with lots of great articles on various aspects of memory. Oh, and there's also a feature from me, on sharp-wave ripples and whether or not they're important for memory.
Are memories just ripples in time?
Current Biology, Volume 23, Issue 17, R734-R736, 9 September 2013
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All the themed content in this issue will remain on free access for a month after publication date, apparently.
By coincidence, there is also a new book out about one of the most extensively studied patients with memory loss, H.M. While this isn't directly linked to ripples, the cause of his memory loss was removal of his hippocampi, and they are also the source of ripples, so that was a good enough excuse for me to mention his case.