Background: In the last few years, experimental data have been reported on differences in implicit memory processes of genetically distinct groups of individuals with Intellectual Disability (ID). These evidences are relevant for the more general debate on supposed asynchrony of cognitive maturation in children with abnormal brain development.…

Tested the ability of 19 older adults, given additional training in a mental imagination technique, to approach the performance of 16 younger adults on serial word recall tasks. Results indicated that negative age differences in older adults' performance were substantial, resistant to extensive practice, and applicable to all subjects. (BC)