Emotions in context: examining pervasive affective sensing systems, applications, and analyses

Pervasive sensing has opened up new opportunities for measuring our feelings and understanding our behavior by monitoring our affective states while mobile. This review paper surveys pervasive affect sensing by examining and considering three major elements of affective pervasive systems, namely; “sensing”, “analysis”, and “application”. Sensing investigates the different sensing modalities that are used in existing real-time affective applications, Analysis explores different approaches to emotion recognition and visualization based on different types of collected data, and Application investigates different leading areas of affective applications. For each of the three aspects, the paper includes an extensive survey of the literature and finally outlines some of challenges and future research opportunities of affective sensing in the context of pervasive computing

Applying the Retrospective Think-Aloud Protocol in Usability testing with Children: Seeing Through Children's Eyes

This paper describes a study of usability testing with children in which stimulated retrospective probing was examined to determine its efficacy and usefulness. Ten children were involved in the evaluation of two different web sites. The session involved tracking their eyes as they conducted four tasks, two navigational and two informational tasks. Accuracy and efficiency and eye movement metrics were collected, and child participants rated their subjective satisfaction with the sites. Retrospective probing was conducted to elicit verbalizations of problems that children experienced in their use of these sites. The retrospective think-aloud (RTA) protocol was used along with eye gaze replay in post-session interviews. Findings show that the stimulated RTA protocol with eyetracking is effective in eliciting explanatory information about what children attend to in usability evaluations and how they process information, and how children arrived at a target element or solution. Implications for usability practitioners are discussed