transmit the sensory impulse to the appropriate part of the brain or spinal cord for interpretation and processing; also known as association neurons.
depth. 1  the distance from the top downward, from the surface inward, or from front to back. 2  perspective, as in a painting. 3  the quality or condition of being deep; deepness; specif., 4  intensity, as of colors, silence, or emotion.
Perception of Depth by Michael Kalloniatis and Charles Luu. Stereopsis refers to our ability to appreciate depth, that is the ability to distinguish the relative distance of objects with an apparent physical displacement between the objects. It is possible to appreciate the relative location of objects using one eye (monocular cues).