No Evidence for Shared Representations of Task Sets in Joint Task Switching

Motonori Yamaguchi, Helen Wall, Bernhard Hommel

Research output: Contribution to journalArticle (journal)peer-review

12 Citations (Scopus)
128 Downloads (Pure)


It has been suggested that actors corepresent a shared task context when they perform a task in a joint fashion. The present study examined the possibility of co-representation in joint task-switching, in which two actors shared two tasks that switched randomly across trials. Experiment 1 showed that when an actor performed the tasks individually, switch costs were obtained if the actors responded on the previous trial (go trial) but not if they did not respond (nogo trial). When two actors performed the tasks jointly, switch costs were obtained if the actor responded on the previous trial (actor repeat trials) but not if the co-actor responded (actor switch trials). In Experiment 2, a single actor performed both tasks of the joint condition to test whether the findings of Experiment 1 were due to the use of different response sets by the two actors. Switch costs were obtained for both repetitions and alternations of the response set, which rules out this possibility. Taken together, our findings provided little support for the idea that actors co-represent the task sets of their co-actors.
Original languageEnglish
Pages (from-to)1166-1177
JournalPsychological Research
Issue number6
Early online date15 Oct 2016
Publication statusPublished - 30 Nov 2017


  • Joint performance
  • co-representation
  • task switching
  • go/nogo task
  • task representation


Dive into the research topics of 'No Evidence for Shared Representations of Task Sets in Joint Task Switching'. Together they form a unique fingerprint.

Cite this