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You Are Right!

Kerstin Dittrich1, Lydia Puffe1, Karl Christoph Klauer1

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Social Simon tasks reveal that instructing participants to act as left or right responders significantly amplifies joint spatial compatibility effects (SCEs), unlike arbitrary labels.

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Area of Science:

  • Cognitive psychology
  • Social psychology
  • Human-computer interaction

Background:

  • Social Simon tasks involve joint spatial compatibility effects (SCEs), where participants respond faster to stimuli on their side.
  • These effects are absent in individual tasks and were previously attributed to shared task representations.
  • Recent research suggests SCEs stem from spatial response coding, where participants adopt specific roles.

Purpose of the Study:

  • To investigate the impact of explicit role assignment on joint spatial compatibility effects (SCEs).
  • To determine if instructing participants as 'left' or 'right' responders enhances SCEs compared to arbitrary labels.

Main Methods:

  • Participants performed a go/no-go task in a social Simon paradigm.
  • Two conditions were compared: explicit role assignment (left/right participant) and arbitrary numerical labels.
  • Response times and accuracy were measured to assess joint SCEs.

Main Results:

  • Explicitly instructing participants to act as the 'left' or 'right' participant substantially increased joint SCEs.
  • Arbitrary numerical labels did not yield significant joint SCEs.
  • This suggests that perceived roles, not just spatial layout, are crucial for joint SCEs.

Conclusions:

  • Joint spatial compatibility effects in social Simon tasks are significantly enhanced by explicit role assignment.
  • The findings support the spatial response coding explanation for SCEs, emphasizing the role of self-perception.
  • Clear role definitions, such as 'left' or 'right' participant, are more effective than arbitrary labels in eliciting these social cognitive phenomena.