Editing Episodic memory (section)

==Age differences==
{{Further|Memory and aging}}
Episodic memory emerges at approximately 3 to 4 years of age.<ref>{{cite journal | vauthors = Scarf D, Gross J, Colombo M, Hayne H | title = To have and to hold: episodic memory in 3- and 4-year-old children | journal = Developmental Psychobiology | volume = 55 | issue = 2 | pages = 125–32 | date = March 2013 | pmid = 22213009 | doi = 10.1002/dev.21004 }}</ref> Activation of specific brain areas (mostly the [[hippocampus]]) seems to be different between younger (aged 23–39) and older people (aged 67–80) upon episodic memory retrieval.<ref>{{cite journal | vauthors = Maguire EA, Frith CD | title = Aging affects the engagement of the hippocampus during autobiographical memory retrieval | journal = Brain | volume = 126 | issue = Pt 7 | pages = 1511–23 | date = July 2003 | pmid = 12805116 | doi = 10.1093/brain/awg157 | doi-access = free }}</ref> Older people tend to activate both their left and right hippocampus, while younger people activate only the left one.