Watch this video (http://openstaxcollege.org/l/occipital) to learn more about a transverse section throughthe brain that depicts the visual pathway from the eye tothe occipital cortex. The first half of the pathway is theprojection from the RGCs through the optic nerve to thelateral geniculate nucleus in the thalamus on either side.This first fiber in the pathway synapses on a thalamic cellthat then projects to the visual cortex in the occipital lobewhere “seeing,” or visual perception, takes place. This video gives an abbreviated overview of the visual systemby concentrating on the pathway from the eyes to theoccipital lobe. The video makes the statement (at 0:45) that“specialized cells in the retina called ganglion cells convertthe light rays into electrical signals.” What aspect of retinalprocessing is simplified by that statement? Explain youranswer.
Watch this video (http://openstaxcollege.org/l/
occipital) to learn more about a transverse section through
the brain that depicts the visual pathway from the eye to
the occipital cortex. The first half of the pathway is the
projection from the RGCs through the optic nerve to the
lateral geniculate nucleus in the thalamus on either side.
This first fiber in the pathway synapses on a thalamic cell
that then projects to the visual cortex in the occipital lobe
where “seeing,” or visual perception, takes place. This video gives an abbreviated overview of the visual system
by concentrating on the pathway from the eyes to the
occipital lobe. The video makes the statement (at 0:45) that
“specialized cells in the retina called ganglion cells convert
the light rays into electrical signals.” What aspect of retinal
processing is simplified by that statement? Explain your
answer.
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