The retina is often referred to as an "outpost of the brain" -- after all, important steps in visual signal processing do not take place in the cerebrum, but in the nerve cells in the eye.
The retina is often referred to as an "outpost of the brain"—after all, important steps in visual signal processing do not take place in the cerebrum, but in the nerve cells in the eye.
The body contains various types of nerve cells, including graded neurons that encode information through continuous changes in membrane potential, allowing subtle and precise signal processing.