Seeing Straight and Responding Quickly: Peripheral vs. Central Vision
Grade Level: Middle School ;Type: Life science
- Discover how quickly our fingers respond to what our eyes see
- Learn the anatomical and physiological differences between central and peripheral visual systems
- Learn about the functions of the photopic vs. scotopic systems
- What are that reaction times are faster when subjects are looking directly at the stimulus with their photopic system than when they are looking indirectly at the stimulus with their scotopic systems?
- What are the advantages of the scotopic system?
- What, besides speed of reaction, are some of the advantages of the photopic system?
How quickly do our fingers respond to what our eyes see? Before launching this experiment, you should try to learn about the anatomy and physiology of the central (photopic) and peripheral (scotopic) visual systems. You will test the subjects’ visual reaction times using each of these systems.
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