Sensations are set by the encoding functions of sensory nerve endings, and by the integrating neural mechanics of the central nervous system. Afferent nerve fibers are not high-fidelity recorders, for they accentuate certain stimulus features, neglect others. The central neuron is a story-teller with regard to the nerve fibers, and it is never completely trustworthy, allowing distortions of quality and measure…. Sensation is an abstraction, not a replication, of the real world.

