... young and old adults. Aging affects the interaction of the soma-tosensory and visual systems on the ability of the CNS toresolve sensory conflicts and to maintain upright stanceequilibrium. Therefore, ... conflicts.Competing interests The author(s) declare that they have no competing inter-ests.Authors' contributionsNB has been involved in the conception and design, dataacquisition, analysis and interpretation, ... stability depends on the characteristics of the visual environment, and of the sup-port surface, including the size of the base of support, itsrigidity or compliance [12,13]. Within physiological...