Neural codes with overlapping receptive fields are less likely to be corrupted by noise than codes in which each neuron codes for only one value.⇒
Multisensory input can provide redundant information on the same thing.
Redundancy reduces uncertainty and increases reliability.⇒
The redundancy provided my multisensory input can facilitate or even enable learning.⇒
Some sensory-motor maps are complex: they are not a simple spatiotopic mapping, but comprise internally spatiotopic `neighborhoods' which, on a much greater scale are organized spatiotopically, but across which the same point in space may be represented redundantly.⇒
The complex structure of sensory-motor maps may be due to a mapping from a high-dimensional manifold into a two-dimensional space. This kind of map would also occur in Ring's motmaps.⇒
Redundancy reduction, predictive coding, efficient coding, sparse coding, and energy minimization are related hypotheses with similar predictions. All these theories are reasonably successful in explaining biological phenomena.⇒