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Tash Diaz edited section_Review_of_Related_Literature__.tex
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EMG has been applied to a variety of fields. The most notable applications are in medicine. EMG has been used to rehabilitate stroke victims \cite{Viriyasaksathian_2011}, provide computer access for people who are unable to use a mouse, trackpad, touchpad, or keyboard \cite{Craig_Chin}, and control prosthetic hands more dexterously \cite{Al_Timemy_2013}. Another field is in Game Development. This will be further explained in the next section.
\subsection{Related Studies on
EMG muscle based gestures in Computer Science games}
In the game industry, EMG technology has been widely used to replace physical components, such as the traditional joysticks and keyboards with something virtual. In a study conducted by Wheeler and Jorgensen \cite{Wheeler_2003}, it has been understood that there are two forms of most used gesture-recognition systems for receiving inputs. First is through image processing with an external camera as the source of input. Second is through muscle sensors such as the wearable dry-electrode sleeve device they have developed to sense EMG signal as computer inputs. These EMG electrodes work by detecting skin currents with a very low-impendence connection with the skin. It receives the currents that travel in the muscle fiber from the innervation point to the end of the muscle. This device was tested using a virtual number pad and in their case, the participant had to be extra careful and precise with each movement because of the sensitivity and difficulty of distinguishing the keys that were hit.