There is evidence that the prevention of errors during learning might
be helpful in improving an impaired memory performance, both in amnesia as
well as in normal age-related memory decline. Although errorless learning
is a promising technique for use in rehabilitation practice, the
underlying mechanisms are unclear. That is, it has been suggested that the
beneficial effects of errorless learning operate through implicit memory,
whereas others implicate that it is explicit memory that is responsible
for the enhanced memory performance after errorless learning. The current
study examined the contribution of implicit and explicit memory function
to the memory performance after errorless and errorful learning using the
process-dissociation procedure. A group of young adults (N = 40)
was compared to a matched group of older individuals (N = 40) on
a spatial memory task (i.e., learning the locations of everyday objects in
a room). The results clearly show age-related decline in explicit spatial
memory, while implicit spatial memory was unaffected. Furthermore, the
young group benefited from errorless learning compared to errorful
learning, while the older group did not show a difference between the two
learning conditions. Also, it was found that the effects of errorful
learning were related to explicit memory function, and not implicit
processing, corroborating and extending recent findings. (JINS,
2005, 11, 144–151.)