Mayra Donaji Barrera Machuca

schoolDalhousie Universitybar_chart#1742 Global Rank

Total Papers

HCI Rank

#1742

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Years Active

Recent Publications

Latest papers from Mayra Donaji Barrera Machuca

CHI '25CorrespondingHand Gesture Recognition +2

Spatial Hand Actions: Exploring the Hand Actions used to Represent Spatial Thinking for 3D Assembling Tasks

When designing 3D objects in 3D virtual environments using naturalistic 3D user interfaces, people use their hands to manipulate the environment and objects inside it. At the same time, people utilize their spatial thinking to understand the spatial relationship of the objects in the scene. Yet, the relationship betwe…

CC '24CorrespondingVibrotactile Feedback & Skin Stimulation +1

ThermalPen: Investigating the Influence of Thermal Haptic Feedback for Creativity in 3D Sketching

This paper presents ThermalPen, a novel device for 3D sketching that utilizes thermal feedback to allow users to feel the materiality of their sketches. The pen lets users draw using six colours and three textures mapped to different temperatures. Our goal is to investigate the influence of thermal feedback on user cr…

CHI '243rd Author3D Modeling & Animation +1

An Artists' Perspectives on Natural Interactions for Virtual Reality 3D Sketching

Virtual Reality (VR) applications like OpenBrush offer artists access to 3D sketching tools within the digital 3D virtual space. These 3D sketching tools allow users to ``paint'' using virtual digital strokes that emulate real-world mark-making. Yet, users paint these strokes through (unimodal) VR controllers. Given t…

CHI '24CorrespondingEye Tracking & Gaze Interaction +2

EyeGuide & EyeConGuide: Gaze-based Visual Guides to Improve 3D Sketching Systems

Visual guides help to align strokes and raise accuracy in Virtual Reality (VR) sketching tools. Automatic guides that appear at relevant sketching areas are convenient to have for a seamless sketching with a guide. We explore guides that exploit eye-tracking to render them adaptive to the user's visual attention. Eye…

CHI '234th AuthorInclusive Design +1

Para Cima y Pa’ Abajo: Building Bridges Between HCI Research in Latin America and in the Global North

The Human-computer Interaction (HCI) community has the opportunity to foster the integration of research practices across the Global South and North to begin overcoming colonial relationships. In this paper, we focus on the case of Latin America (LATAM), where initiatives to increase the representation of HCI practiti…

CHI '222nd AuthorAR Navigation & Context Awareness +1

The Effect of the Vergence-Accommodation Conflict on Virtual Hand Pointing in Immersive Displays

Previous work hypothesized that for Virtual Reality (VR) and Augmented Reality (AR) displays a mismatch between disparities and optical focus cues, known as the vergence and accommodation conflict (VAC), affects depth perception and thus limits user performance in 3D selection tasks within arm's reach (peri-personal s…

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