Abstract
Commodity electromyography (EMG) armbands are inexpensive tools and provide a platform for new human-computer interfaces. EMG devices measure electrical activity which is associated with muscle movement. These digitally encoded signals present a novel channel in human computer interaction whereby a user's muscle movements govern inputs. However, issues related to transparency, confusion, as well as increased task load can arise if the encoded muscle movements do not translate directly to the computer task. This work explores the use of 3 degree of freedom (DOF) kinesthetic haptic sensory feedback to augment an sEMG controlled interaction in a gaming environment. In this game, haptic feedback or visual feedback modes are presented to users. To validate and evaluate the efficacy of the addition of haptic feedback in using the novel EMG user interface, extensive user studies were conducted. This work has implications with regard to performance during use and learning of a novel computer interface. Results are promising and shed insight into future uses of commodity EMG devices.
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