Number of co-authors:18
Number of publications with 3 favourite co-authors:Privender Saini:3Georgio Mosis:1Sandra Vosbergen:1
Joyca Lacroix's 3 most productive colleagues in number of publications:Panos Markopoulos:80H. Jaap Van Den He..:19Li Li:11
Design can be art. Design can be aesthetics. Design is so simple, that's why it is so complicated.
-- Paul Rand, 1997
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Publications by Joyca Lacroix (bibliography)
Vosbergen, Sandra, Colkesen, Ersen B., Lacroix, Joyca, Mosis, Georgio, Stappers, Pieter Jan, Kraaijenhagen, Roderik A. and Peek, Niels (2010): Assessment of user needs for self-management services in coronary heart disease: a designerly approach. In: Proceedings of the 2010 Annual European Conference on Cognitive Ergonomics 2010. pp. 343-344.
Motivation -- Coronary heart disease (CHD) is a chronic condition with a high prevalence in Western countries. Unless properly managed it leads to life-threatening events, increasing disabilities, and death. Due to the essential role of lifestyle in the development of CHD, patients are in a large part able to self-manage their disease. Internet-based self-management tools and services hold the promise to support patients and their caregivers in this task. Research approach -- This study aims to identify the needs and preferences of CHD patients in daily self-management challenges. An exploratory qualitative research method, originating from the field of product design, will be used to explore self-management needs of CHD patients. As a preparation to this study a literature study, four interviews and a pilot study were executed. Findings/Design -- Based on the literature study and the interviews, two different research tools were designed. These tools were tested in a pilot study. From August to October inclusive the research tools will be adjusted and the study will be executed, resulting in a description of health related self-management needs for patients with CHD. Take away message -- New opportunities for prevention of disease and health self-management arise through internet-based applications. Qualitative research methods involving patients, originating from the field of product design can contribute to the optimal development of such applications.
© All rights reserved Vosbergen et al. and/or their publisher
Fialho, Andre T. S., Heuvel, Herjan van den, Shahab, Qonita, Liu, Qing, Li, Li, Saini, Privender, Lacroix, Joyca and Markopoulos, Panos (2009): ActiveShare: sharing challenges to increase physical activities. In: Proceedings of ACM CHI 2009 Conference on Human Factors in Computing Systems 2009. pp. 4159-4164.
This paper discusses the use of social goal setting as a strategy to achieve persuasion through technology. This approach was applied in the design of ActiveShare a system developed to motivate people with sedentary lifestyles to increase their physical activity. In this system, users obtain and share their goals through challenges, which are posted on a social networking website. The paper describes the iterative design process followed, including concept tests, a focus group, and a field test with a fully functional prototype. Preliminary results are promising, although we found no significant increase on physical activity during the one week test. Suggested improvements to the design and plans for a follow up study are outlined.
© All rights reserved Fialho et al. and/or ACM Press
Lacroix, Joyca, Saini, Privender and Goris, Annelies (2009): Understanding user cognitions to guide the tailoring of persuasive technology-based physical activity interventions. In: Proceedings of the 2009 International Conference on Persuasive Technology 2009. p. 9.
The growing number of people with an inactive lifestyle emphasizes the need for highly persuasive physical activity interventions. Modern technological developments bring great promise for the realization of such large-scale persuasive behavior change interventions because they allow for user tailored interaction. For the effective tailoring of technology-based interventions, a profound understanding of the main variables underlying physical activity behavior is required. In this paper, we focus on three cognitive variables that have shown to be crucial for the adoption and maintenance of health behaviors: behavioral regulation, types of motives, and self-efficacy. In particular, we explore the relationship of these cognitive variables with actual levels of daily-life physical activity. Our study differs from related studies in two important ways. First, we consider the entire range of physical activities performed throughout the day while many studies focused on sports and or dedicated exercise. Second, we employ a wearable device for the objective measurement of daily physical activity levels rather than rely on self-report measures. Our results show that active individuals feel higher levels of self-determined behavioral regulation, experience stronger motives to be active (in particular for health and well-being related motives), and have higher levels of self-efficacy for daily-life physical activity than inactive individuals. We argue that tailored technology-based activity interventions should accommodate these cognitive variables and for inactive individuals, aim to gradually induce and internalize the cognitions already experienced by active individuals.
© All rights reserved Lacroix et al. and/or ACM Press
Lacroix, Joyca, Saini, Privender and Holmes, Roger (2008): The relationship between goal difficulty and performance in the context of a physical activity intervention program. In: Hofte, G. Henri ter, Mulder, Ingrid and Ruyter, Boris E. R. de (eds.) Proceedings of the 10th Conference on Human-Computer Interaction with Mobile Devices and Services - Mobile HCI 2008 September 2-5, 2008, Amsterdam, the Netherlands. pp. 415-418.
Lacroix, Joyca, Murre, Jaap M. J., Postma, Eric O. and Herik, H. Jaap Van Den (2006): Modeling Recognition Memory Using the Similarity Structure of Natural Input. In Cognitive Science, 30 (1) pp. 121-145.
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