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.
depth perception. the ability to judge depth or the relative distance of objects in space and to orient one's position in relation to them. Binocular vision is essential to this ability. Also called stereopsis. depth perÂ·cepÂ·tion.