RWTH Aachen University, Aachen, Germany.
Erasmus University Rotterdam, Rotterdam, The Netherlands.
Psychol Res. 2021 Oct;85(7):2588-2598. doi: 10.1007/s00426-020-01424-y. Epub 2020 Oct 7.
When we interact with other people or avatars, they often provide an alternative spatial frame of reference compared to our own. Previous studies introduced avatars into stimulus-response compatibility tasks and demonstrated compatibility effects as if the participant was viewing the task from the avatar's point of view. However, the origin of this effect of perspective taking remained unclear. To distinguish changes in stimulus coding from changes in response coding, caused by the avatar, two experiments were conducted that combined a SNARC task and a spontaneous visual perspective taking task to specify the role of response coding. We observed compatibility effects that were based on the avatar's perspective rather than the participants' own. Because number magnitude was independent of the avatar's perspective, the observed changes in compatibility caused by different perspectives indicate changes in response coding. These changes in response coding are only significant when they are accompanied by visual action effects.
当我们与他人或虚拟形象互动时，他们通常会提供一个与我们自己不同的空间参照系。之前的研究将虚拟形象引入到刺激-反应相容性任务中，并证明了相容性效应，就好像参与者是从虚拟形象的角度来看待任务一样。然而，这种视角获取效应的起源尚不清楚。为了区分由虚拟形象引起的刺激编码变化和反应编码变化，进行了两项实验，将 SNARC 任务和自发的视觉视角任务相结合，以明确反应编码的作用。我们观察到了基于虚拟形象的视角而不是参与者自己的视角的相容性效应。由于数字大小与虚拟形象的视角无关，因此不同视角引起的相容性变化表明了反应编码的变化。只有当这些变化伴随着视觉动作效应时，反应编码的这些变化才具有统计学意义。
