Title

Cognitive And Touch Performance Effects Of Mismatched 3D Physical And Visual Perceptions

Keywords

Human-centered computing-Human computer interaction (HCI)-HCI design and evaluation methods-User studies; Human-centered computing-Human computer interaction (HCI)-Interaction paradigms-Mixed/augmented reality; Human-centered computing-Human computer interaction (HCI)-Interaction techniques

Abstract

While research in the field of augmented reality (AR) has produced many innovative human-computer interaction techniques, some may produce physical and visual perceptions with unforeseen negative impacts on user performance. In a controlled human-subject study we investigated the effects of mismatched physical and visual perception on cognitive load and performance in an AR touching task by varying the physical fidelity (matching vs. non-matching physical shape) and visual mechanism (projector-based vs. HMD-based AR) of the representation. Participants touched visual targets on four corresponding physical-visual representations of a human head. We evaluated their performance in terms of touch accuracy, response time, and a cognitive load task requiring target size estimations during a concurrent (secondary) counting task. After each condition, participants completed questionnaires concerning mental, physical, and temporal demands; stress; frustration; and usability. Results indicated higher performance, lower cognitive load, and increased usability when participants touched a matching physical head-shaped surface and when visuals were provided by a projector from underneath.

Publication Date

8-24-2018

Publication Title

25th IEEE Conference on Virtual Reality and 3D User Interfaces, VR 2018 - Proceedings

Number of Pages

379-386

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/VR.2018.8446574

Socpus ID

85053819694 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85053819694

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