The brain resolves the conflict between information overload from a huge number of receptors and the need for resolution of spatial detail by having a higher density of receptors in regions of the body where high resolution of detail is behaviorally important and using progressively lower numbers of receptors in surrounding regions. Spatial resolution for vision and touch parallels the density of receptors in the retina and skin. Spatial resolution on the fingertips approaches that of the image inD.Receptor density and tactile sensitivity on the palm is similar to the resolution inC.Resolution of spatial detail on the forearm approaches that in imageB, while on the trunk it is similar to that in imageA.(Photographs courtesy of Daniel Gardner.)