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Use of technology often has unpleasant side effects, which may include strong, negative emotional states that arise during interaction with computers. Frustration, confusion, anger, anxiety and similar emotional states can affect not only the interaction itself, but also productivity, learning, social relationships, and overall well-being. This paper(More)
Prototypes of interactive computer systems have been built that can begin to detect and label aspects of human emotional expression, and that respond to users experiencing frustration and other negative emotions with emotionally supportive interactions, demonstrating components of human skills such as active listening, empathy, and sympathy. These working(More)
The design of software for learners must be guided by educational theory. We present a framework for learner-centered design (LCD) that is theoretically motivated by sociocultural and constructivist theories of learning. LCD guides the design of software in order to support the unique needs of learners: growth, diversity, and motivation. To address these(More)
Using social science methods to induce a state of frustration in users, we collected physiological , video and behavioral data, and developed a strategy for coupling these data with real-world events. The eeectiveness of the proposed strategy was tested in a study with thirty-six subjects , where the system was shown to reliably synchronize and gather data(More)
Transient images help to analyze light transport in scenes. Besides two spatial dimensions, they are resolved in time of flight. Cost-efficient approaches for their capture use amplitude modulated continuous wave lidar systems but typically take more than a minute of capture time. We propose new techniques for measurement and reconstruction of transient(More)
Use of technology often has unpleasant side effects, which may include strong, negative emotional states that arise during interaction with computers. Frustration, confusion, anger, anxiety and similar emotional states can affect not only the interaction itself, but also productivity, learning, social relationships, and overall well-being. This paper(More)
A human-computer interaction (HCI) agent was designed and built to support users in their ability to recover from negative emotional states, particularly frustration. The agent uses social-affective feedback strategies delivered to the user with text-only interaction. The agent's effectiveness was evaluated against two control conditions: (1) user's(More)
Our goal was to develop a computer system trained to sense a user's emotional state via the recognition of physiological signals. In the course of developing an exploratory pilot study toward this end, we encountered and addressed unique and context-dependent interface design and synchronization challenges. We used social science methods to induce a state(More)