Big ring coil,150 mm
This coil is optimal for quickly stimulating the motor cortex without much effort, as it affects a larger area that is much less focal than for typical figure-of-eight coils. It is mainly used for stimulating the motor cortex, and generating motor evoked potentials (MEP). The windings have a diameter of 150mm.
![Big ring coil,150 mm](/media/cache/bd/1b/bd1b9f5660777bbd0f38aac8ec831ed5.jpg)