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    Area of Science:

    • Human-Computer Interaction
    • Extended Reality (XR) Interaction Design
    • Cognitive Psychology in User Interfaces

    Background:

    • Gesture interaction is a key feature in modern head-mounted displays like Microsoft HoloLens 2 and Apple Vision Pro.
    • Gestures in XR systems originate from various sources, including user elicitation studies, designers, and domain experts.
    • The impact of gesture source on user memorability remains an underexplored area in XR interface design.

    Purpose of the Study:

    • To investigate whether the origin of gestures influences their memorability for users in extended reality (XR) environments.
    • To compare the recall rates of gestures defined by experts, users themselves, and previous research (elicitation).

    Main Methods:

    • A user study was conducted with 35 participants using the Microsoft HoloLens 2.
    • Participants interacted with three sets of gestures: expert-defined, user-defined, and elicitation-defined.
    • Gesture recall was measured to quantify memorability across the different gesture sources.

    Main Results:

    • Expert-defined gestures demonstrated a recall rate of 72.73%.
    • Elicitation-defined gestures had a lower recall rate of 59.87%.
    • User-defined gestures achieved the highest memorability with an 88.75% recall rate.

    Conclusions:

    • The source of gesture definition significantly affects user memorability in extended reality (XR).
    • User-generated gestures are the most memorable, suggesting a strong link between personal creation and recall.
    • Findings provide crucial insights for designing more intuitive and memorable gesture-based XR interfaces.