Bacteria Hunt: A multimodal, multiparadigm BCI game

Brain-Computer Interfaces (BCIs) allow users to control applications by brain activity. Among their possible applications for non-disabled people, games are promising candidates. BCIs can enrich game play by the mental and affective state information they contain. During the eNTERFACE’09 workshop we developed the Bacteria Hunt game which can be played by keyboard and BCI, using SSVEP and relative alpha power. We conducted experiments in order to investigate what difference positive vs. negative neurofeedback would have on subjects’ relaxation states and how well the different BCI paradigms can be used together. We observed no significant difference in mean alpha band power, thus relaxation, and in user experience between the games applying positive and negative feedback. We also found that alpha power before SSVEP stimulation was significantly higher than alpha power during SSVEP stimulation indicating that there is some interference between the two BCI paradigms

Issues and techniques for collaborative music making on multi-touch surfaces

A range of systems exist for collaborative music making on multi-touch surfaces. Some of them have been highly successful, but currently there is no systematic way of designing them, to maximise collaboration for a particular user group. We are particularly interested in systems that will engage novices and experts. We designed a simple application in an initial attempt to clearly analyse some of the issues. Our application allows groups of users to express themselves in collaborative music making using pre-composed materials. User studies were video recorded and analysed using two techniques derived from Grounded Theory and Content Analysis. A questionnaire was also conducted and evaluated. Findings suggest that the application affords engaging interaction. Enhancements for collaborative music making on multi-touch surfaces are discussed. Finally, future work on the prototype is proposed to maximise engagement

Social Networking Sites: Social Support, Motivation, and Influences on Chinese international students\u27 intercultural communication competence

The purposes of this study were 1) to examine the status quo and differences in intercultural communication competence and social networking sites use motivation between Chinese international students and U.S. students, 2) to explore the relationship between social networking sites use motivation and intercultural communication, 3) to understand the factors comprising intercultural communication competence, and 4) to develop a model to predict intercultural communication competence. Quantitative survey research was conducted to address these research objectives. The survey research showed that compared with U.S. students, Chinese international students differ in social networking sites use time, frequency, and certain patterns. Also, Chinese international students showed an overall low score in certain factors of intercultural communication competence. The study showed no statistically significant differencs between groups in total time spent on SNS and in intercultural communication competence; however, using SNS with certain motivations was correlated to changes in intercultural communication competence

READING BUILDS EMPATHY: PILOTING A LITERACY TOOL TO MEASURE READING\u27S IMPACT ON KIDS\u27 EMPATHY DEVELOPMENT

Culturally Relevant Pedagogical (CRP; Ladson-Billings, 1995) and textual strategic approaches to reading development are gaining acceptance and broader usage among students of all ages and walks of life. With this shift, quantitative measures of efficacy can confirm, bolster, and source new policies and strategies for implementation in new and existing learning frontiers that engage at-home reading and family literacy practices. To this end, the Reading Builds Empathy literacy study seeks to develop and pilot a new instrument to be used in future intervention studies. Focusing on the active ingredient of culturally relevant pedagogy, empathy, and its three dimensions (affective, cognitive, and ethnocultural empathy) this instrument adapts proven methods for assessing early readers aged 6-8 on affective learning measures, namely Marinak’s (2015) Me and My Reading Profile, to construct a new tool to help reading researchers, educators, and families better measure and understand the power of early readers’ engagement with picture books. Outcomes from this study offered suggestions for future interventions to advance the use of picture books, development and use of empathy in a CRP context, for students’ reading and writing development, academic success, and lifelong learning

Mapping FoodHCI Futures

Recognizing the significant potential impact that HCI has on food practices and experiences, researchers and practitioners are undertaking a growing number of explorations of novel computing technology and food combinations. These explorations have so far primarily emphasized technology-driven systems and taken a human-centric perspective. We propose a Special Interest Group (SIG) in "foodHCI futures"that creates a space for researchers to discuss the boundaries of food incorporating HCI, and with the simultaneous aims of reconciling food with technology and extending our visions for human-food interactions towards anthropocentrism. Specifically, the SIG will be a beginning of developing a structured conceptual map of the possibilities for future technology interventions in food systems. In developing this map, we hope to encourage democratized debate, provoke new and divergent thoughts on the opportunities for foodHCI, and ultimately gain unique insights that contribute to preferable food futures

EVEN-VE: Eyes Visibility Based Egocentric Navigation for Virtual Environments

Navigation is one of the 3D interactions often needed to interact with a synthetic world. The latest advancements in image processing have made possible gesture based interaction with a virtual world. However, the speed with which a 3D virtual world responds to a user’s gesture is far greater than posing of the gesture itself. To incorporate faster and natural postures in the realm of Virtual Environment (VE), this paper presents a novel eyes-based interaction technique for navigation and panning. Dynamic wavering and positioning of eyes are deemed as interaction instructions by the system. The opening of eyes preceded by closing for a distinct time-threshold, activates forward or backward navigation. Supporting 2-Degree of Freedom head’s gestures (Rolling and Pitching) panning is performed over the xy-plane. The proposed technique was implemented in a case-study project; EWI (Eyes Wavering based Interaction). With EWI, real time detection and tracking of eyes are performed by the libraries of OpenCV at the backend. To interactively follow trajectory of both the eyes, dynamic mapping is performed in OpenGL. The technique was evaluated in two separate sessions by a total of 28 users to assess accuracy, speed and suitability of the system in Virtual Reality (VR). Using an ordinary camera, an average accuracy of 91% was achieved. However, assessment made by using a high quality camera testified that accuracy of the system could be raised to a higher level besides increase in navigation speed. Results of the unbiased statistical evaluations suggest/demonstrate applicability of the system in the emerging domains of virtual and augmented realities

Virtually tasty: An investigation of the effect of ambient lightning and 3D-shaped taste stimuli on taste perception in virtual reality

Taste perception is influenced by sensory information not only about the food itself but also about the external environment where the food is tasted. Prior studies have shown that both visual attributes of the environment (e.g., light colour, location) and the shape associated to food (e.g., plates, cutlery) can influence people's taste perception and expectations. However, previous studies are typically based on non-edible shapes usually shown as 2D images or presented as 3D tangible objects aimed to be perceived by subjects' hand. Therefore, the effect of mouthfeel of differently shaped foods on taste perception remains unclear. Capitalising on the advantages of virtual reality (VR) to manipulate multisensory features, we explore the effects of coloured (red, blue, neutral) virtual environments on the taste (sweet, neutral) perception of differently shaped taste samples (rounded/spiky shapes according to the Kiki-Bouba paradigm). Overall, our results showed increased ratings of sweetness when participants tasted Bouba-shaped samples (rounded) relative to Kiki-shaped samples (spiky) suggesting that tactile attributes perceived inside the mouth can influence sweetness perception. Furthermore, we concluded that lighting colour in a virtual setting might dampen experiences of sweetness. However, this effect may only be present when there is a cross-modal correspondence with taste. Based on our findings, we conclude by describing considerations for designing eating experiences in VR

Dynamic Procedural Music Generation from NPC Attributes

Procedural content generation for video games (PCGG) has seen a steep increase in the past decade, aiming to foster emergent gameplay as well as to address the challenge of producing large amounts of engaging content quickly. Most work in PCGG has been focused on generating art and assets such as levels, textures, and models, or on narrative design to generate storylines and progression paths. Given the difficulty of generating harmonically pleasing and interesting music, procedural music generation for games (PMGG) has not seen as much attention during this time. Music in video games is essential for establishing developers\u27 intended mood and environment. Given the deficit of PMGG content, this paper aims to address the demand for high-quality PMGG. This paper describes the system developed to solve this problem, which generates thematic music for non-player characters (NPCs) based on developer-defined attributes in real time and responds to the dynamic relationship between the player and target NPC. The system was evaluated by means of user study: participants confront four NPC bosses each with their own uniquely generated dynamic track based on their varying attributes in relation to the player\u27s. The survey gathered information on the perceived quality, dynamism, and helpfulness to gameplay of the generated music. Results showed that the generated music was generally pleasing and harmonious, and that while players could not detect the details of how, they were able to detect a general relationship between themselves and the NPCs as reflected by the music