SENSORY SYSTEMS

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Write a 2-3 page, APA-format paper that examines the visual pathway from the external stimulus to the visual cortex, theories on color vision and visual perceptions, and the importance of pain perception and receptors.
Answer the following questions:
Trace the visual pathway from the image entering the eye all the way to the visual cortex. Include the key functions of the major pathways in the visual cortex.
Compare and contrast the different theories of color vision and how the theories explain our perceptions. Include what roles the rods and cones play in these. How would our perception of the world change if we had only one cone? Two cones? Four cones?
Why is it important that we are able to perceive pain? Are there specific pain receptors in the nervous system or could pain be a result of the overstimulation of other somatosensory pathways? Explain.