Mj. Eacott et Ra. Crawley, THE OFFSET OF CHILDHOOD AMNESIA - MEMORY FOR EVENTS THAT OCCURRED BEFORE AGE-3, Journal of experimental psychology. General, 127(1), 1998, pp. 22-33
Adult memory for the events surrounding the birth of a sibling was exa
mined in 69 adults. The authors identified a steep offset for childhoo
d amnesia for this event before the child reaches age 2 1/2 years. The
authors also examined the accuracy of information recalled. Although
the majority of the answers were accurate, false memories were a consi
stent feature of the data. Alternative explanations of the authors' da
ta were considered by examining the amount of information an additiona
l 57 adults had about a family birth for which they could have no memo
ry. The pattern of results did not support the view that participants
might be unable to differentiate between memories and knowledge about
the event.