Princeton's WordNet(0.00 / 0 votes)Rate this definition: 1  shimmer, play(verb) a weak and tremulous light. 2  shimmer(verb) shine with a weak or fitful light. 3  shimmer(verb) give off a shimmering reflection, as of silk.
CONE CELLS are the second type of light sensitive cells in the retina of the eye. The human retina contains 6-7 million cones; they function best in bright light and are essential for acute vision (receiving a sharp accurate image).
o Rods: Sensitive to light and can only see black and white o Cones: Sensitive to color and are responsible for color vision What is accommodation o The lens in the eye changes thickness based on how close or far something is away Definition of sensation and perception o Sensation: When the sense organs are activated (noticing the stimuli) o Perception: Interprets the sensation and turns it into something meaningful for the body Chapter 4 The different stages: e.g., REM, Stage 1-4 etc ...