My interests lie in the intersection of ubiquitous computing and embodied cognition. The primary goal of my research is to understand the human experience of interacting with computational systems, particularly the ways that computation mediates human cognition and action. Computation is sometimes experienced as invisible as the motors in a car, but it often is experienced as a more visibly present social actor that requires direct attention. These shifts have serious implications for the human experience of technologies both in-the-moment and reflectively.
![Current projects
.:Embodied Mediation:.
Throwing Voices
Exploring how interpersonal interactions are influenced by mediating audio technologies
Studying influences of in-the-moment vs. reflective engagement in mediated interactions
Supported by the European Union Project 506909 on Computers in the Human Interaction Loop (CHIL)
Advised by Professor Clifford Nass, Stanford Communication
Ubicomp History
Tracing the social, cultural, and philosophical roots of ubiquitous computing as technological action frame
Conducting interviews and making heavy use of Mark Weiser’s & Rich Gold’s archival library materials
Advised by Professor Fred Turner, Stanford Communication
Invisible Tools
Exploratory investigation of how tools becomes invisible in use
Conducting interviews to identify important ways that tools become invisible in use
.:Agentic Objects:.
Human-Robot Interaction
Studying human issues of attachment to robots and effects of robot body and voice locations on perceived control
Designing and running experiments in human-robot interaction to systematically investigate these issues w/ Victoria Groom
Designing and running surveys of public attitudes towards appropriate & acceptable robot occupations w/ Wendy Ju
Advised by Professor Clifford Nass, Stanford Communication
Gesturing Doors
Studying the ways that doors communicate when they gesture, using only 2 degrees of freedom in motion
Designing and running experiments understanding experiences of gesturing doors
Collaborating with Wendy Ju, Stanford Center for Design Research
Virtual Voices
Making sense of how people engage in joint activities with virtual agents (linguistic pragmatics)
Collecting virtual voices from our everyday experiences to generate a framework for reflecting upon them
Advised by Professor Herbert Clark, Stanford Psychology
.:Cognitive Science:.
Sensemaking in Intelligence
Using cognitive task analysis to understand information foraging & sensemaking in intelligence analysis
Working as a research assistant at Palo Alto Research Center (PARC)’s User Interface Research (UIR) Lab
Advised by Stu Card, Senior Research Fellow, PARC UIR
Publications
16. Takayama, L. & Nass, C. (in press). Assessing the Effectiveness of Interactive Media in Improving Drowsy Driver Safety. Human Factors, 50(5).
15. Ju, W., & Takayama, L. (in press). Approachability: How people interpret automatic door movement as gesture. Proceedings of Design and Emotion, Hong Kong, China.
14. Takayama, L. Ju, W., & Nass, C. (2008). Beyond Dirty, Dangerous, and Dull: What everyday people think robots should do. Proceedings of the Human-Robot Interaction Conference: HRI 2008, Amsterdam, The Netherlands, 25-32. [PDF]
13. Takayama, L., & Nass, C. (2008). Driver safety and information from afar: An experimental driving simulator study of wireless vs. in-car information services. International Journal of Human-Computer Studies, 66(3), 173-184. [PDF]
12. Danninger, M., Takayama, L., Wang, Q., Schultz, C., Beringer, J., James, F., Hofmann, P., Nass, C. (in press). Can you talk or only Touch-Talk? A VoIP-based phone feature for quick, quiet, and private communication. Proceedings of the International Conference on Multimodal Interfaces: ICMI 2007, Nagoya, Japan, 154-161. [PDF]
11. Takayama, L., & Kandogan, E. (2006). Trust as an underlying factor of system administrator interface choice. Extended Abstracts of Human Factors in Computing Systems: CHI 2006, Quebec, Canada, 1391-1396. [PDF]
10. Nass, C., Takayama, L., & Brave, S. (2006). Social consistency: From technical homogeneity to human epitome. In Zhang, P. & Galletta, D. (Eds.), Human-computer Interaction in Management Information Systems: Foundations. Armonk, NY: M. E. Sharpe, 373-391. [PDF]
9. Klemmer, S. R., Hartmann, B., & Takayama, L. (2006). How bodies matter: Five themes for interaction design. Proceedings of Designing Interactive Systems: DIS 2006, Pittsburgh, PA, USA, 140-148. [PDF]
8. Danninger, M., Kluge, T., Robles, E., Takayama, L., & Wang, Q. (2006). The Connector service: Predicting availability in mobile contexts. Proceedings of the Joint Workshop on Multimodal Interaction and Related Machine Learning Algorithms: MLMI 2006, Washington DC, USA, 129-141. [PDF]
7. Nass, C., Jonsson, I., Harris, H., Reaves, B., Endo, J., Brave, S., & Takayama, L. (2005). Improving automotive safety by pairing driver emotion and car voice emotion. Extended Abstracts of Human Factors in Computing Systems: CHI 2005, Portland, OR, USA, 1973-1976. [PDF]
6. Jonsson, I., Nass, C., Harris, H., & Takayama, L. (2005). Matching in-car voice with driver state: Impact on attitude and driving performance. Proceedings of the International Driving-Symposium on Human Factors in Driver Assessment, Training and Vehicle Design, Rockport, ME, USA, 173-180. [PDF]
5. Barrett, R., Kandogan, E., Maglio, P. P., Haber, E., Takayama, L. A., & Prabaker, M. (2004). Field studies of computer system administrators: Analysis of system management tools and practices. Proceedings of Computer Supported Collaborative Work: CSCW 2004, Chicago, IL, USA, 388-395. [PDF]
4. Jiang, X., Hong, J., Takayama, L., & Landay, J. (2004). Ubiquitous computing for firefighters: Field studies and prototypes of large displays for incident command. Proceedings of Human Factors in Computing Systems: CHI 2004, Vienna, Austria, 679-686. [PDF]
3. Jiang, X., Chen, N. Y., Hong, J. I., Wang, K., Takayama, L., & Landay, J. (2004). Siren: Context-aware computing for firefighting. Proceedings of Pervasive 2004, Vienna, Austria, 87-105. [PDF]
2. Takayama, L., Leung, L., Jiang, X., & Hong, J. I. (2003). You're getting warmer! How proximity information affects search behavior in physical spaces. Extended Abstracts of Human Factors in Computing Systems: CHI 2003, Minneapolis, MN, USA, 1028-1029. [PDF]
1. Walker, M., Takayama, L., & Landay, J. A. (2002). Low- or high-fidelity, paper or computer? Choosing attributes when testing web prototypes. Proceedings of the Human Factors and Ergonomics Society: HFES 2002, Baltimore, MD, USA, 661-665. [PDF]
Workshop papers
Ames, M., Go, J., Takayama, L., Raffle, H., Spasojevik, M., & Ballagas, T. (in press). Exploring family communication and technology use with an eye to design. CSCW 2009 family communication workshop.
Takayama, L. & Card, S. K. (2008). Tracing the microstructure of sensemaking. CHI 2008 sensemaking workshop.
Takayama, L. (2008). Human embodiment matters in human-robot interaction. HRI 2008 pioneers workshop.
Manuscripts in preparation
Takayama, L. & Nass, C. (in progress). Throwing voices: How separating voices from bodies in face-to-face interaction affects perceptions and decision-making behavior
Takayama, L. (in progress). A social and philosophical history of ubiquitous computing
Past research
Mobile computing and directed audio research as part of the Computers in the Human Interaction Loop (CHIL) project supported by the European Union
 
Field and survey studies of system administrator work practices, internship at IBM Research, Almaden
 
Proximity-based search for fire fighters, Intel Undergraduate Research Competition
 
Ubicomp field studies and prototyping for firefighters, GUIR, UC Berkeley Computer Science
 
Evaluation of low-fidelity prototypes in web design, GUIR, UC Berkeley Computer Science
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