Changes in fMRI and Neurocognitive Function in Women With Pre-eclampsia

Inclusion Criteria:Severe Pre-Eclampsia defined by * Symptoms of central nervous system dysfunction (New onset cerebral or visual disturbance, such as: Photopsia, scotomata, cortical blindness, retinal vasospasm) * Severe headache (ie, incapacitating, "the worst headache I've ever had") or headache that persists and progresses despite analgesic therapy * Altered mental status * Hepatic abnormality (Severe persistent right upper quadrant or epigastric pain unresponsive to medication and not accounted for by an alternative diagnosis or serum transaminase concentration ≥ twice normal, or both) * Severe blood pressure elevation (Systolic blood pressure ≥160 mmHg or diastolic blood pressure ≥110 mmHg on two occasions at least four hours apart while the patient is on bedrest (unless the patient is on antihypertensive therapy)) * Thrombocytopenia (\<100,000 platelets/microL) * Renal abnormality (Progressive renal insufficiency (serum creatinine \>1.1 mg/dL or doubling of serum creatinine concentration in the absence of other renal disease)) * Pulmonary edema 15 English-speaking pregnant controls with uncomplicated pregnancy matched by age and gestational age will be enrolled from the antenatal clinic or the labor ward. Exclusion Criteria: * History of symptomatic cerebrovascular disease with substantial residual deficit * History of alcoholism * History of psychiatric illness * History of claustrophobia * Renal failure (creatinine \> 2.0 mg/dl) * Patients with less than a 7th grade education or unable to read and thus unable complete the neuropsychological testing * Patients with bodily implants unsafe for MRI use