Are you talking about rods and cones?
Rods are more around the periphery of the retina, are more sensitive after dark adaptation (absolute limen) and see only variations of black and white. In contrast, cones can see color, have better visual acuity and are more in the center of the retina. In fact, the the fovea contains only cones.
In addition, I searched Google under the key words "human rods cones" to get these possible sources:
http://hyperphysics.phy-astr.gsu.edu/hbase/vision/rodcone.html
http://www.cis.rit.edu/people/faculty/montag/vandplite/pages/chap_9/ch9p1.html
http://www.innerbody.com/image/nerv07.html
http://faculty.washington.edu/chudler/retina.html
http://en.wikipedia.org/wiki/Eye
I hope this helps. Thanks for asking.
outline two types of neural network that you may find in the visual system and state the advantage of each?
thank you very much. im really stuck with this question.
3 answers
One might be tempted to bring up the debate as to whether or not psychology should even be included as one of the sciences.
knagcw nftwod gsmirnxbp ibndf xoycjmf pyaehsgr wizrgud