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 of field is a characteristic of a camera that can be used to enhance the image composition of the photo. Depth of field means the sharp area surrounding the point of focus. The magnitude of the sharp area is affected by several factors: distance between the camera and the subject, focal length and aperture.