Because postural responses to sensory manipulation
might be influenced by knowledge about the room motion
which might change
central settings .
1991), the characteristics of the visual manipulation, such
as the degree of predictability of this manipulation, are
critical because periodic or repetitive patterns of manipulation
can be easily detected by the central nervous system
(Musolino et al. 2006). For instance, it is considered
appropriate to provide the postural control system with a
less predictable stimulus (non-periodic), which increases
task demand, requiring more refined sensory reweighting
that is more related to real conditions where unexpected
environmental changes are unpredictable.