Chapter 3 ANALYSIS PSYCH.docx - Chapter 3 Chapter Analysis 1 Describe the sequence of events through which visual information is processed Begin by

Chapter 3 ANALYSIS PSYCH.docx - Chapter 3 Chapter Analysis...

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Chapter 3- Chapter Analysis 1. Describe the sequence of events through which visual information is processed. Begin by discussing how light is converted into neural energy. Then describe the pathway from the eye to the primary visual cortex. Finally, describe the processing that occurs outside of the primary visual cortex. There are two kinds of cells on the outermost layer of the retina which are involved in photo signal transduction called rods and cones. They have a similar basic structure. There is an axon closest to the visual field which is responsible for secreting the neurotransmitter glutamate to the bipolar cells that are behind these cells. The axon is away from the cell body and there is a section full of mitochondria. The major function of this area is to provide energy to the Sodium- Potassium pump. Closest to the brain is that area that receives light. Outer segments contain modified cilia that have opsin molecules which absorb photons. Opsin contains retinal and are together called as rhodopsin in rods and photopsins in cones. Light enters through the cornea then goes to the cones and rods, the thalamus, the lens, the bipolar cells, and the ganglion cells.
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