The research community on the study and design of systems for personal informatics has
grown over the past decade. To take stock of what the topics the field has studied and …

As data-driven health technologies such as mobile health apps, wearable devices, and
smart medical devices advance and become more pervasive, the datafication of personal …

With the rapidly evolving permeation of digital technologies into everyday human life, we are
witnessing an era of personal data digitalization. Personal data digitalization refers to the …

Skin conductance is an interesting measure of arousal level, largely unfamiliar to most end-
users. We designed a mobile application mirroring end-users' skin conductance in evocative …

Personal informatics (PI) systems are designed for diverse users in the real world. Even
when these systems are usable, people encounter barriers while engaging with them in …

While the use of wearable commercial fitness trackers or mobile phone technologies to learn
about an individual's sleep quality grows more and more popular, some sleep experts worry …

Behavior change and improving health literacy based on normative ideals of motherhood is
a dominant paradigm to address maternal health challenges. However, these ideals often …

Physical contact is critical for children's physical and emotional growth and well-being.
Previous studies of physical contact are limited to relatively short periods of direct …

Featured Application A system to detect pain in infants using facial expressions has been
developed. Our system can be easily adapted to a mobile app or a wearable device. The …

This essay develops the concept of “quantified play” to describe and analyze the recent
practice of self-tracking in the play of videogames. I argue that statistical, self-tracking utilities …