September 2021
Volume 21, Issue 9
Open Access
Vision Sciences Society Annual Meeting Abstract  |   September 2021
Further evidence that people do not rely on allocentric information to guide their movements when the target is visible
Author Affiliations & Notes
  • Emily M. Crowe
    Vrije Universiteit Amsterdam
  • Eli Brenner
    Vrije Universiteit Amsterdam
  • Footnotes
    Acknowledgements  This work was supported by the Netherlands Organisation for Scientific Research (NWO) under project number 464.18.111 awarded to Eli Brenner
Journal of Vision September 2021, Vol.21, 1954. doi:
  • Views
  • Share
  • Tools
    • Alerts
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      Emily M. Crowe, Eli Brenner; Further evidence that people do not rely on allocentric information to guide their movements when the target is visible. Journal of Vision 2021;21(9):1954.

      Download citation file:

      © ARVO (1962-2015); The Authors (2016-present)

  • Supplements

Many everyday tasks involve moving one’s fingers to a target. Previous research has shown that such movements can rely on both egocentric (object-to-self) and allocentric (object-to-object) visual information. However, the use of allocentric information to guide ongoing movements towards continuously visible targets is yet to be demonstrated. We previously found no evidence for the use of allocentric information in a task where participants intercepted a visible target using a cursor that represented their finger position, even though the finger was moving in a different plane than the cursor. On each trial there was either an independent perturbation of the target, cursor or background, or the simultaneous perturbation of all three task components. In the latter condition the relative positions of the task components remained constant such that relying on allocentric information would be advantageous in avoiding unnecessary adjustments to the ongoing movement. Participants responded to the simultaneous perturbation in accordance with how we would expect them to respond if they dealt with each individual perturbation egocentrically. In the present study, we modified the task such that participants’ finger position determined the velocity rather than the position of the cursor. Doing so further dissociates finger movements from cursor movements. For example, when the finger stops moving, the cursor does not stop moving but continues to move at the prevailing velocity. Participants still responded to the simultaneous perturbation of target, cursor and background. Again they did so in accordance with how they responded to each perturbation individually. This supports the idea that allocentric spatial information is not used to control ongoing actions when the target is visible.


This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.