Direct visual feedback
Direct Visual Feedback is a method of training used in both practical and rehabilitative settings where the attention of the trainee is tied to an external visual cue in reference to the particular movement, motor function or exercise that is being performed by the trainee. The principle to Bio-Feedback is very similar to DVF. Bio-Feedback, which is a process that enables an individual to learn how to change physiological activity for the purposes of improving health and performance by receiving rapid feedback from precise instruments which are measuring physiological activity such as brainwaves, heart function, breathing, muscle activity, and skin temperature.