used to examine the sequential handling of different component tasks (in comparison to simultaneous tasks in the dual-task paradigm); this paradigm includes trials with repeated tasks and trials with shifts between tasks; the typical performance costs under the condition of a task switch in comparison to task repetitions (for example: longer response times; switch costs) are an indicator of using the executive function “shifting“; this function is associated with the flexible configuration of the cognitive system during the shift between different tasks

defined by Tilo Strobach