Memory Re-consolidation

Professor Karim Nader discusses a theory known as reconsolidation, which posits that when a memory is re-activated, it is subsequently re-stored.

So past theories of consolidation have suggested that once a memory is stored in the brain, it remains fixed in the brain. We and others have found that when a memory is reactivated, when you remember something that is fixed in the brain, it has to undergo another re-storage process. We know that it's not identical to the initial consolidation but nonetheless it is seen in many memory systems.