Psych M.D.-Rods


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Term: Rods
Definition (Myers):retinal receptors that detect black, white, and grey; necessary for peripheral and twilight vision, when cones don't respond 1
Definition (alternative):
A type of specialized light-sensitive cell (photoreceptor) in the retina of the eye that provides side vision and the ability to see objects in dim light (night vision). 2
Contextual explanation: The rods are located in the retina's outer layer of cells. It works together with cones, which is the basis of how we see color. The rods allow us to see black and white, and all the other correlated shades. Thus, this is how we see during the night.
Related terms and concepts:
Related photos/videos:
Psych M.D.-Rods picture3
4
Related websites:
Sources:
  1. Myers, D.G. (2004). Psychology. Holland, Michigan: Worth Publishers.
  2. (1999). MedicineNet. Retrieved September 9, 2009, Web site: http://www.medterms.com/script/main/art.asp?articlekey=10548
  3. (2007). What is scotopic enhanced lighting?. Retrieved September 9, 2009, from Green Electrical Supply Web site: (1999). MedicineNet. Retrieved September 9, 2009, Web site: http://www.medterms.com/script/main/art.asp?articlekey=10548
  4. (2008, Nov. 24). Youtube. Retrieved September 9, 2009, from Retina's Rods And Cones Team Up For Better Night Sight Web site: http://www.youtube.com/watch?v=eWmc5pei7ow



Edited by: Lydia
Date of last edit: 9/10/09



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