The impact of visual deprivation on spatial coding: Developmental trends and new evaluative and training procedures
Several evidences indicate that visual experience during development is fundamental to acquire long-term spatial capabilities. Specifically, it has been hypothesized that vision is crucial to acquire the ability to code space according to allocentric frames of reference, namely based on external landmarks compared to our own body. For instance, the first attempts of sighted children to code space by relying on allocentric landmarks have been reported at 8.5 months of age, with constant improvements throughout primary school years.