Â­TheÂ­ three most basic units in electricity are voltage (V), current (I, uppercase i) and resistance (r). Voltage is measured in volts, current is measured in amps and resistance is measured in ohms. A neat analogy to help understand these terms is a system of plumbing pipes. The voltage is equivalent to the water pressure, the current is equivalent to the flow rate, and the resistance is like the pipe size. How Power Grids Works.
Biofeedback is a method that uses the mind to control a body function that the body normally regulates automatically, such as skin temperature, muscle tension, heart rate, or blood pressure. When you are first learning biofeedback, you will have sensors attached to your body and to a monitoring device.
With proper training, biofeedback can be used by professionals in many fields. Biofeedback is NOT used as a treatment alone, nor can it be used alone to make a diagnosis. Rather it is an adjunctive tool to be combined with other standard interventions carried out by knowledgeable clinicians, educators, or coaches.