The central nervous system is made up of the brain and spinal cord. The brain functions to receive nerve impulses from the spinal cord and cranial nerves. The spinal cord contains the nerves that carry messages between the brain and the body.
In some patients, lupus affects the brain or central nervous system. This can cause headaches, dizziness, depression, memory disturbances, vision problems, seizures, stroke, or changes in behavior.
Source: NIAMS.NIH.gov, MedlinePlus.gov