The main purpose of the present study was to examine whether implicit
learning abilities, assessed by means of a serial reaction time task,
are present to the same extent in 6- and 10-year-old children as in ad
ults. We also wondered whether the knowledge acquired after one learni
ng session is retained after a 1-week delay. And finally, we studied t
he explicit knowledge developed by the children in this task. Our resu
lts show no age-related difference in the serial reaction lime perform
ance, which is consistent with the idea that implicit learning abiliti
es may be efficient early in development. (C) 1998 Academic Press.