Methods and apparatus for inducing neurogenesis within a human. The invention utilizes an implantable signal generator to deliver high frequency stimulation to deep brain tissue elements. The implanted device delivers treatment therapy to the brain to thereby induce neurogenesis by the human. A sensor may be used to detect various symptoms of nervous system discovery. A microprocessor algorithm may then analyze the output from the sensor to regulate the stimulation and/or drug therapy delivered to the brain.
