The results are:

• More affected in old age are control processes that regulate task-related processing in the general switch situation, i.e.: Maintain both task instructions for task A and B and coordinate them with the position information of task sequence
• Less affected in old age are control processes that regulate a specific task switch, i.e.: reconfigure different task-related stimulus-response mappings

Jutta Kray comments: "Within cognitive aging research, it appears to be useful to vary different task domains and, at the same time, different demands of cognitive processing in well-controlled experimental settings in order to identify distinct sources of age-related change in cognitive functioning."

Adult Age Differences in Task Switching: Components, Generalizability, and Modifiability
Kray, J.