In this paper we present a wearable device for control of home automation systems via hand gestures. This solution has many advantages over traditional home automation interfaces in that it can be used by those with loss of vision, motor skills, and mobility. By combining other sources of context with the pendant we can reduce the number and complexity of gestures while maintaining functionality. As users input gestures, the system can also analyze their movements for pathological tremors. This information can then be used for medical diagnosis, therapy, and emergency services.Currently, the Gesture Pendant can recognize control gestures with an accuracy of 95% and userdefined gestures with an accuracy of 97% It can detect tremors above 2HZ within ¦.1 Hz.

Our observations of players older than 65 suggested that they weighed costs and benefits when deciding whether or not to play video games. Current games can be higher in cost for seniors because of the perceptual and cognitive changes that tend to occur with age. When seniors choose to invest effort in overcoming those costs, it is often because they perceive a high benefit. Creating successful games for seniors will likely require designers to increase the perceived benefits of games, such as engagement, even more than lowering costs such as frustration, time, and money.

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Walter Benjamin is best known for his essay ‘The Work of Art in the Age of Mechanical Reproduction’, (Benjamin, 1968b) in which he argues that film and other mechanical technologies are destroying the aura that had belonged to traditional art. In this article we apply Benjamin’s concept of aura to new (digital) media, and in particular to ‘mixed reality’, a group of technologies that blend computer-generated visual, aural, and textual information into the user’s physical environment. We argue that mixed reality increases the options for designer-artists and apparently allows the invocation of aura in new ways. Our culture’s pursuit of auratic experience remains problematic in mixed reality as it was for Benjamin in the case of film. New media maintain aura in a permanent state of oscillation or crisis, and this crisis is a key to understanding new media.

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