Recovery from optic neuritis is associated with a change in the distribution of cerebral response to visual stimulation: a functional magnetic resonance imaging study. Werring DJ, bullmore ET, toosy AT, miller DH, barker GJ, MacManus DG, brammer MJ, giampietro VP, brusa A, brex PA, moseley IF, plant GT, McDonald WI, thompson AJ. * J neurol neurosurg psychiatry 2000;68:441-449