Location: It is parallel to and 1.5cm behind the motor area.
Function:
Upper one-fifth: to treat pain, numbness and abnormal sensation of the contralateral side in the back and leg, occipital headache, pain of the neck and nape, and tinnitus.
Middle two-fifths: to treat pain, numbness and abnormal sensation of the contralateral arm.
Lower two-fifths: to treat numbness and pain of the contralateral side in the head and face.
Comments: