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Does the hippocampus store episodic memories for life?

April 26, 2017episodic hippocampus life memories store

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Does the hippocampus store episodic memories for life?

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Researchers argue over how long episodic memories are stored in the hippocampus. Some researchers believe that episodic memories are always reliant on the hippocampus – even memories from way back in your past. Others believe the hippocampus only stores episodic memories for a short time after which the memories are consolidated to the neocortex. The latter view is strengthened by recent evidence that neurogenesis in the adult hippocampus may ease the removal of old memories and increase the efficiency of forming new memories (Deisseroth et al 2004 (http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=15157417&itool=iconabstr)). If the hippocampus is deliberately deleting old memories then old memories must be stored somewhere else.