N-2 Repetition Costs in Task Switching: Task Inhibition or Interference Between Task Episodes?

ABSTRACT: A prominent behavioral marker of inhibition in task switching is the "N-2 repetition cost" that denotes the decrement in performance in task sequences with an N-2 task repetition (ABA), relative to task sequences without an N-2 task repetition (CBA). Recently, it has been critized that N-2 repetition costs at least partially reflect interference between task episodes, rather than persisting inhibition, raising doubts about the interpretation of N-2 repetition costs as a measure of inhibition. Here, we aim to generalize these conclusions in two ways. First, we define episodic effects in task switching with respect to the last episode of the same task, which might have occurred several trials back (e.g., in trial N-2, N-3, etc.). Second, we distinguish between episodic interference caused by

SUBMITTER: Schuch S 

PROVIDER: S-EPMC9635329 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature