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Levels of Control During a Collaborative Carrying Task

Ruddle, Roy A., Savage, Justin C. D. ORCID: and Jones, Dylan Marc ORCID: 2003. Levels of Control During a Collaborative Carrying Task. Presence: Teleoperators and Virtual Environments 12 (2) , pp. 140-155. 10.1162/105474603321640914

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Three experiments investigated the effect of implementing low-level aspects of motor control for a collaborative carrying task within a VE interface, leaving participants free to devote their cognitive resources to the higher-level components of the task. In the task, participants collaborated with an autonomous virtual human in an immersive virtual environment (VE) to carry an object along a predefined path. In experiment 1, participants took up to three times longer to perform the task with a conventional VE interface, in which they had to explicitly coordinate their hand and body movements, than with an interface that controlled the low-level tasks of grasping and holding onto the virtual object. Experiments 2 and 3 extended the study to include the task of carrying an object along a path that contained obstacles to movement. By allowing participants' virtual arms to stretch slightly, the interface software was able to take over some aspects of obstacle avoidance (another low-level task), and this led to further significant reductions in the time that participants took to perform the carrying task. Improvements in performance also occurred when participants used a tethered viewpoint to control their movements because they could see their immediate surroundings in the VEs. This latter finding demonstrates the superiority of a tethered view perspective to a conventional, human'seye perspective for this type of task.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Psychology
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Q Science > QA Mathematics > QA76 Computer software
Additional Information: Pdf uploaded in accordance with publisher's policy at (accessed 28/02/2014).
Publisher: MIT Press
ISSN: 1054-7460
Date of First Compliant Deposit: 30 March 2016
Last Modified: 18 Oct 2022 13:00

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