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A test was done on you to measure how well certain nerves are conducting information.

The testing often involves various metal plates being stuck onto the skin. Some of these plates can emit electricity. Other plates can measure changes in the electrical tension in the skin. The testing may also involve thin needles being inserted through the skin near certain nerves.

Nerves are a sort of wiring in the body. Nerves conduct information. The nerves use electrical impulses to do this. Nerves are important, for instance, in enabling you to sense contacts and temperatures, and to move your muscles.

When testing, nerves can be tested that are responsible for moving muscles. Nerves responsible for sensation can also be tested. To do this, electricity is used to stimulate a nerve in different places. The nerve passes this stimulus on as an electrical impulse. This causes certain muscles to twitch or the tension in a certain part of the skin to change. This is recorded as lines and waves. Measurements are then taken, such as how quickly and how well the nerve has conducted the information.

When certain conditions are present in the nerves, the lines and waves look different to usual.