Sciatica is pain, tingling, or numbness produced by an irritation of the nerve roots that lead to the sciatic nerve.The sciatic nerve is formed by the nerve roots coming out of the spinal cord into the lower back. It goes down through the buttock, then its branches extend down the back of the leg to the ankle and foot.ciatica is pain, tingling, or numbness produced by an irritation of the nerve roots that lead to the sciatic nerve.
prefrontal lobotomy - surgical interruption of nerve tracts to and from the frontal lobe of the brain; often results in marked cognitive and personality changes. frontal lobotomy, leucotomy, leukotomy, lobotomy, prefrontal leucotomy, prefrontal leukotomy.
Rating Newest Oldest. Best Answer: Lobotomy is a surgical procedure that was used highly in 1940s and 1950s for almost every neurological disorder. In this operation, the connection between the prefrontal cortex and regions responsible for motivation and emotion is cut (procedure known as prefrontal leucotomy).ating Newest Oldest. Best Answer: Lobotomy is a surgical procedure that was used highly in 1940s and 1950s for almost every neurological disorder. In this operation, the connection between the prefrontal cortex and regions responsible for motivation and emotion is cut (procedure known as prefrontal leucotomy).