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Untethered displays: the effects of mixed reality on split-attention in fine-motor tasks

Hurt, Griffin J. (2024) Untethered displays: the effects of mixed reality on split-attention in fine-motor tasks. Undergraduate Thesis, University of Pittsburgh. (Unpublished)

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Augmented reality presents new affordances for users to interact with information without limitations of the physical world. For instance, a surgeon in the operating room may want to adjust a monitor without breaking the sterile field, or a military technician may need to reference information from an immovable screen. These environments currently use either large displays or personal tablet devices to present this information to the user. We have developed a system allowing users to segment a physical display, virtualize the segments as holograms in mixed reality, and position the elements around the task space. We also conducted a user study to understand the effects of display modality (mixed reality, tablet, or large display) on participant performance and preferences. We chose Lego construction as our experimental task, as it is reinforced by the literature and mirrors the critical interaction challenges that exist in constrained environments. We found no significant difference in performance between the three modalities, indicating mixed reality may provide a drop-in solution to places where displays or tablets are disadvantaged. The tablet modality was subject to familiarity bias, which may have affected participant rankings. Participants were likely to recommend mixed reality for hypothetical people completing tasks with more restrictions than the experimental task, regardless of their personal ranking order. Overall, these findings present design implications for replacing large displays and personal tablets with mixed reality in information-rich environments.


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Item Type: University of Pittsburgh ETD
Status: Unpublished
CreatorsEmailPitt UsernameORCID
Hurt, Griffin J.griffhurt@pitt.edugjh420000-0002-7355-7825
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Thesis AdvisorBiehl, Jacobbiehl@pitt.edubiehl0000-0002-3878-5208
Committee MemberAndrews, Edwardandrewse2@upmc.eduega30
Committee MemberKader,
Committee MemberLee, Adamadamlee@pitt.eduadamlee0000-0002-2596-7256
Date: 23 April 2024
Date Type: Publication
Defense Date: 30 March 2024
Approval Date: 23 April 2024
Submission Date: 17 April 2024
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Number of Pages: 53
Institution: University of Pittsburgh
Schools and Programs: David C. Frederick Honors College
School of Computing and Information > Computer Science
Degree: BPhil - Bachelor of Philosophy
Thesis Type: Undergraduate Thesis
Refereed: Yes
Uncontrolled Keywords: spatial computing, mixed reality, hci, human-computer interaction, virtual displays, operating room, segmented displays, command and control
Date Deposited: 23 Apr 2024 14:04
Last Modified: 23 Apr 2024 14:04


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