Second, the older group generated more errors in each of three ASTs compared to the young group. In contrast to response latencies, this age group effect was of a similar magnitude across the ASTs. The proportion of errors differed between the AST-mem and the AST-go/no-go. As expected, higher error rates were generated in AST-s due to the absence of any cues to facilitate either WM or IC. This implies that both WM and IC contributed to the increased error rates of the older group. In contrast, the spatial accuracy of the saccades was similar in the two groups.