It shows the means of saccade latencies for the younger and older participants in the prosaccade (PST), the standard antisaccade (AST-s), memory-guided antisaccade (AST-mem), and go/no-go antisaccade tasks (AST-go/no-go). Older participants have substantially longer latencies in the AST-go/no-go in comparison with the younger participants. Error bars represent standard errors.