Method and system for treating neural disorders

A method for treating Parkinson's disease, comprising:

• implanting a stimulation lead to a cortex of a patient with Parkinson's disease,
• wherein the stimulation lead comprises an electrode having a plurality of stimulation sites arranged in an array along a length of the stimulation lead, and the stimulation lead is positioned in direct contact with a plurality of specific layers of the cortex through the plurality of stimulation sites,
• wherein each of the plurality of stimulation sites is configured to deliver a stimulation to one of the specific layers of the cortex or a sublayer of one of the specific layers of the cortex in direct contact therewith, and
• selectively delivering the stimulation to at least one of the specific layers of the cortex or the sublayer of one of the specific layers of the cortex of the patient with Parkinson's disease to suppress a pathological signature relating to Parkinson's disease, wherein the plurality of stimulation sites comprises a first stimulation site and a second stimulation site, and a parameter of a first stimulation delivered by the first stimulation site is different from a parameter of a second stimulation delivered by the second stimulation site,
• wherein the specific layers of the cortex comprises molecular layer, external granular layer, external pyramidal layer, internal granular layer, internal pyramidal layer, and polymorphic layer.