Masters Thesis

Understanding the Design of Breathing Exercise Games

For leading a healthy life, regular breathing exercises can be beneficial. Digital games may have the potential to help people practice breathing exercises in an engaging way. However, not much understanding exists to design such breathing exercise games. To contribute to such an understanding, I created three Virtual Reality (VR) prototype games that used breathing as the primary control mechanism. I selected virtual reality headmounted display technology because it allows players to focus on the virtual environment and limit external distractions, which is beneficial for breathing exercises. I conducted a formal analysis of gameplay on my three prototypes to develop my final game Life Tree. Life Tree is a single player VR game in which a player controls the growth of a virtual tree by practicing pursed-lip breathing technique. Thirty-two participants were interviewed and filled out a questionnaire after playing Life Tree. Analysis of the data identified four key themes of affecting the experience of participants: 1) Designing Breathing Feedback; 2) Increasing Self-awareness of Breathing and Body; 3) Facilitating Focused Immersion and, 4) Engagement with Breathing Hardware. I used these themes to articulate a set of breathing exercise game design strategies. Game designers may consider these design strategies to develop engaging breathing exercise games.

Master's Thesis

Research Publications

Actuating Myself: Designing Hand-Games Incorporating Electrical Muscle Stimulation | WIP CHI 2021

Motor movements are performed while playing hand-games such as Rock-paper-scissors or Thumb-war. These games are believed to benefit both physical and mental health and are considered cultural assets. Electrical Muscle Stimulation (EMS) is a technology that can actuate muscles, triggering motor movements and hence offers an opportunity for novel play experiences based on these traditional hand-games. However, there is only limited understanding of the design of EMS games. We present the design and evaluation of two games inspired by traditional hand-games, “Slap-me-if-you-can” and “3-4-5”, which incorporate EMS and can be played alone, unlike traditional games. A thematic analysis of the data collected revealed three themes: 1) Gameplay experiences and influence of EMS hardware, 2) Interaction with EMS and the calibration process and, 3) Shared control and its effect on playing EMS games. We hope that an enhanced understanding of the potential of EMS to support hand-games can aid the advancement of movement-based games as a whole.

Myopic Bike and Say Hi: Games for Empathizing with Myopic Users | Student Game Design Competition CHI 2021

Myopia is an eye condition that makes it difficult to focus on objects in the distance. It has become one of the most serious eye conditions worldwide and negatively impacts the quality of life. Although myopia is prevalent, many non-myopic people have misconceptions about it and encounter challenges empathizing with myopia situations. In our game, we developed two virtual reality (VR) games, Myopic Bike and Say Hi, to provide a means for non-myopic population to experience the frustration and difficulties of myopic people, i.e., riding a bicycle and greeting someone on a street. Our games simulate two inconvenient daily life scenarios that myopic people encounter when not wearing glasses. We evaluated four participants’ game experiences through questionnaires and semi-structured interviews. We propose that our two VR games can create an engaging and non-judgemental experience for the non-myopic population to better understand and empathize with those who suffer from myopia.

Out of Your Mind!? Embodied Interaction in Sports | Workshop CHI 2021

People engage in sportive activities for reasons beyond improving their athletic performance. They also seek experiences like fun, adventure, a feeling of oneness, clear their heads, and flow. Since sport is a highly bodily experience, we argue that taking an embodied interaction perspective to inspire interaction design of sports systems is a promising direction in HCI research and practice. This workshop will address the challenges of designing interactive systems in the realm of sports from an embodied interaction perspective focusing on athletes’ experience rather than performance. We will explore how interactive systems enhance sports experience without distracting from the actual goal of the athlete, such as freeing the mind. We will focus on several topics of interest such as sensory augmentation, augmented experience, multi-modal interaction, and motor learning in sports.

SIGHInt: Special Interest Group for Human-Computer Integration |Special Interest Group (SIG) CHI 2021

Human-Computer Integration (HInt) is a growing paradigm within HCI which seeks to understand how humans can, and already are, merging with computational machines. HInt’s recent inception and evolution has seen much discussion in a variety of symposiums, workshops, and publications for HCI. This has enabled a democratized and decentralised emergence of its core concepts. While this has allowed for rapid growth in our understanding of HInt, there is some discrepancy in how the proponents of this movement might describe its principles, motivations, definitions, and ultimate goals, with many offshoot concepts of HInt beginning to emerge. SIGHint aims to provide a platform to facilitate high level discussion and collation of information between researchers and designers seeking to learn from and contribute to the development of Human-Computer Integration. It is our intention that through this SIG we may better understand how new and emerging, diverging ideas, and perspectives within Human-Computer Integration relate to each other, ultimately facilitating a mapping of the paradigm and a synthesis of its concepts.

Do Cyborgs dream of Electric Limbs? Experiential Factors in Human-Computer Integration Design and Evaluation |Workshop CHI 2021

While many systems have successfully demonstrated functional integration of humans and technology, little attention has been paid to how technologies might experientially integrate to feel as part of humans. Our aim is to shed light on the importance of experiential integration and provide researchers with a scientifically driven foundation for future designs and investigations. The workshop will consist of hands-on experiments with novel body-illusions, discussions on experiential integration, and instructor-guided sessions on psychological concepts related to the design and evaluation of experiential integration.

vrCAPTCHA: Exploring CAPTCHA Designs in Virtual Reality |WIP CHI 2021

With the popularity of online access in virtual reality (VR) devices, it will become important to investigate exclusive and interactive CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) designs for VR devices. In this paper, we first present four traditional two-dimensional (2D) CAPTCHAs (ie, text-based, image-rotated, image-puzzled, and image-selected CAPTCHAs) in VR. Then, based on the three-dimensional (3D) interaction characteristics of VR devices, we propose two vrCAPTCHA design prototypes (ie, task-driven and bodily motion-based CAPTCHAs). We conducted a user study with six participants for exploring the feasibility of our two vrCAPTCHAs and traditional CAPTCHAs in VR. We believe that our two vrCAPTCHAs can be an inspiration for the further design of CAPTCHAs in VR.

Limited Control Over the Body as Intriguing Play Design Resource |CHI 2021

Interest in combining interactive play and the human body, using “bodily play” systems, is increasing. While these systems primarily prioritize a player’s control over their bodily actions, we see intriguing possibilities in the pursuit of “limited control over the body” as an intriguing design resource for bodily play systems. In this paper, we use three of our bodily play systems to illustrate how designers can engage with limited control over the body by varying the player’s degree of indirect control (for instance, via other bodily activity and external triggers). We also propose four strategies for employing limited control over the body: Exploration, Reflection, Learning and Embracement. We hope our own work and the strategies developed from it will assist designers to employ limited control over the body, ultimately helping people benefit from engaging their bodies through play.

Inbodied Interaction for Human Performance and Future Bodies | TEI 2020 Workshop

Inbodied interaction is an emerging area in HCI that aligns how the body performs internally with our designs to support and optimise human performance. Inbodied Interaction, therefore, relies on knowledge of our physiology/neurology/kinesiology etc, to blend with HCI methodology. Recent, Inbodied Interaction workshops and summer schools, have been designed to share models of these processes to accelerate access to these areas of specialisation for HCI researchers. As such this one-day-hands-on-studio presents an extension of this work – an Inbodied interaction framework – to (1) make inbodied sciences accessible and (2) usable for HCI practitioners when it comes to crafting experiences, whether for health, performance or play. Our framework also offers a design alternative to cyborging futures that seek to augment human performance, Inbodied Interaction seeks to help discover and optimise human potential. As such, in this studio, we will explore where inbodied interaction fits in the narrative of our future bodies.

Motor Memory in HCI | CHI 2020 Workshop

There is mounting evidence acknowledging that embodiment is foundational to cognition. In HCI, this understanding has been incorporated in concepts like embodied interaction, bodily play, and natural user-interfaces. However, while embodied cognition suggests a strong connection between motor activity and memory, we find the design of technological systems that target this connection to be largely overlooked. Considering this, we are provided with an opportunity to extend human capabilities through augmenting motor memory. Augmentation of motor memory is now possible with the advent of new and emerging technologies including neuromodulation, electric stimulation, brain-computer interfaces, and adaptive intelligent systems. This workshop aims to explore the possibility of augmenting motor memory using these and other technologies. In doing so, we stand to benefit not only from new technologies and interactions but also a means to further study cognition.

Drone Chi: Somaesthetic Human-Drone Interaction | CHI 2020

Somaesthetics – motivated by improving life quality via appreciation for bodily and sensory experiences – is increasingly influencing HCI designs. Investigating the potential of drones as a material for somaesthetic HCI, we designed Drone Chi: a Tai Chi-inspired close-range human-drone interaction experience. The design process for Drone Chi has been informed by the soma design approach and the Somaesthetic Appreciation concept from HCI literature. The artifact expands somaesthetic HCI by exemplifying dynamic and intimate somaesthetic interactions with a robotic design material, and body movements in expansive 3D space. To characterize the Drone Chi experience, we conducted an empirical study with 32 participants. Analysis of participant accounts revealed 4 themes that articulate different aspects of the experience: Looping Mental States, Environment, Agency vs. Control, and Physical Narratives. From these accounts and our craft knowledge, we derive 5 design implications to guide the development of movement-based close-range drone interactions.

“Erfahrung & Erlebnis”: Understanding the Bodily Play Experience through German Lexicon | TEI 2020

Bodily play systems are becoming increasingly prevalent, with research aiming to understand the associated player experience. We argue that a more nuanced lexicon describing “bodily play experience” can be beneficial to drive the field forward. We provide game designers with two German words to communicate two different aspects of experience:“Erfahrung”, referring to experience where one is actively engaged in and gains knowledge from; and “Erlebnis”, referring to a tacit experience often translated as “lived experience”. We use these words to articulate a suite of design strategies for bodily play experiences by referring to past design work. We conclude by discussing these two aspects of experience in conjunction with two previously established perspectives on the human body. We believe this more nuanced lexicon can provide a clearer understanding for designers about bodily play allowing them to guide players in gaining the many benefits from such experiences.

Towards Designing Bodily Integrated Play | TEI 2020

There is an increasing trend in utilizing interactive technology for bodily integrations, such as additional limbs and ingestibles. Prior work on bodily integrated systems mostly examined them from a productivity perspective. In this article, we suggest examining this trend also from an experiential, playful perspective, as we believe that these systems offer novel opportunities to engage the human body through play. Hence, we propose that there is an opportunity to design “bodily integrated play”. By relating to our own and other’s work, we present an initial set of design strategies for bodily integrated play, aiming to inform designers on how they can engage with such systems to facilitate playful experiences, so that ultimately, people will profit from bodily play’s many physical and mental wellbeing benefits even in a future where machine and human converge.

Reducing perceived waiting time in theme park queues via an augmented reality game | TOCHI Journal 2020

Theme parks visits can be very playful events for families, however, waiting in the ride’s queues can often be the cause of great frustration. We developed a novel augmented reality game to be played in the theme park’s queue, and an in-the-wild study with X participants using log data and interviews demonstrated that every minute playing was perceived to the same extent of about 5 minutes of not playing the game. We articulate a design space for researchers and strategies for game designers aiming to reduce perceived waiting time in queues. With our work, we hope to extend how we use games in everyday life to make our lives more playful.

The Guts Game: Towards Designing Ingestible Games | CHI PLAY 2018

Ingestible sensors, such as capsule endoscopy and medication monitoring pills, are becoming increasingly popular in the medical domain, yet few studies have considered what experiences may be designed around ingestible sensors. We believe such sensors may create novel bodily experiences for players when it comes to digital games. To explore the potential of ingestible sensors for game designers, we designed a two-player game – the “Guts Game” – where the players play against each other by completing a variety of tasks. Each task requires the players to change their own body temperature measured by an ingestible sensor. Through a study of the Guts Game (N=14) that interviewed players about their experience, we derived four design themes: 1) Bodily Awareness, 2) Human-Computer Integration, 3) Agency, and 4) Uncomfortableness. We used the four themes to articulate a set of design strategies that designers can consider when aiming to develop engaging ingestible games.

Arm-A-Dine: Towards Understanding the Design of Playful Embodied Eating Experiences | CHI PLAY 2018

There is an increasing trend in HCI on studying human-food interaction, however, we find that most work so far seems to focus on what happens to the food before and during eating, i.e. the preparation and consumption stage. In contrast, there is a limited understanding and exploration around using interactive technology to support the embodied plate-to-mouth movement of food during consumption, which we aim to explore through a playful design in a social eating context. We present Arm-A-Dine, an augmented social eating system that uses wearable robotic arms attached to diners’ bodies for eating and feeding food. Extending the work to a social setting, Arm-A-Dine is networked so that a person’s third arm is controlled by the affective responses of his/her dining partner. From the study of Arm-A-Dine with 12 players, we articulate three design themes: Reduce bodily control during eating; Encourage savouring by drawing attention to sensory aspects during eating; and Encourage crossmodal sharing during eating to assist game designers and food practitioners in creating playful social eating experiences. We hope that our work inspires further explorations around food and play that consider all eating stages, ultimately contributing to our understanding of playful human-food interaction.

Experiencing the Body as Play (Best Paper - Top 1%) | CHI 2018

Games research in HCI is continually interested in the human body. However, recent work suggests that the field has only begun to understand how to design bodily games. We propose that the games research field is advancing from playing with digital content using a keyboard, to using bodies to play with digital content, towards a future where we experience our bodies as digital play. To guide designers interested in supporting players to experience their bodies as play, we present two phenomenological perspectives on the human body (Körper and Leib) and articulate a suite of design tactics using our own and other people’s work. We hope with this paper, we are able to help designers embrace the point that we both “have” a body and “are” a body, thereby aiding the facilitation of the many benefits of engaging the human body through games and play, and ultimately contributing to a more humanized technological future.

Life Tree: Understanding the Design of Breathing Exercise Games | CHI PLAY 2017

Regular breathing exercises can be a beneficial part of leading a healthy life. Digital games may have the potential to help people practice breathing exercises in an engaging way, however designing breathing exercise games is not well understood. To contribute to such an understanding, we created Life Tree as the culmination of three prototypal breathing games. Life Tree is a virtual reality (VR) game in which a player controls the growth of a tree by practising pursed-lip breathing. We selected VR head-mounted display technology because it allows players to focus and limit external distractions, which is beneficial for breathing exercises. 32 participants played Life Tree and analysis of the collected data identified four key themes: 1) Designing Breathing Feedback; 2) Increasing Self-Awareness of Breathing and Body; 3) Facilitating Focused Immersion; and, 4) Engagement with Breathing Hardware. We used these themes to articulate a set of breathing exercise game design strategies that future game designers may consider to develop engaging breathing exercise games.

BreathSenses: Classification of Digital Breathing Games | CHI 2016 Workshop

In recent years attention has increased around digital breathing games via new technology that allows interaction between breathing and video games. While some breathing games use breath as a fun form of interaction, other games use breath to improve mental health aspects a player in order to reduce stress and anxiety. So far, little research has been devoted towards understanding the design of breathing games. To develop an understanding towards the design of breathing games, we begin by proposing a taxonomy depending on the factors of game genre, game design analysis based on the human body senses involved, breathing technique used, aim of the breathing technique, technology used to experience the game world and technology used to measure breathing. To demonstrate the strength of our taxonomy, we analyze example games and discuss how the novel taxonomy could help game designers to create breathing games.

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