Abstract: Embodiments are directed to a human-machine interface including one or more sensors configured to detect myoelectrical signals of a user and an electronic device configured to provide a set of training data based on the myoelectric signals as input to a classifier. The electronic device can receive one or more sets of feature data each associated with movement classification from the classification model and display a user interface including a multi-dimensional plot comprising at least two dimensions that are each based on a component dimension determined by the classifier and used to determine the first and second sets of the feature data. The plot can include visual elements corresponding to the sets of feature data. The user device can receive a second set of detected myoelectric signals and display a graphical icon on the multi-dimensional plot indicating a current feature based on the second set of myoelectric signals.

Abstract: An apparatus is provided for conducting electrical signals at the skin of a user. In a given embodiment, the apparatus includes a fabric layer, an electrically insulating coating, and an electrical contact element. The fabric layer has an interior surface and an exterior surface. The coating has an exterior surface overlying the interior surface of the fabric layer, and has an interior surface exposed for contact with the skin of the user. The contact element includes a body of polymeric material with an electrically conductive additive dispersed in the polymeric material. The body of polymeric material reaches through the fabric layer and the coating, has an interior electrical contact surface exposed at the interior surface of the coating, and further has an exterior electrical contact surface exposed at the exterior surface of the fabric layer.