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5.1.5: Outside Resources

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    224764

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    Video: Acquired knowledge and its impact on our three-dimensional interpretation of the world - 3D Street Art

    Video: Acquired knowledge and its impact on our three-dimensional interpretation of the world - Anamorphic Illusions

    Video: Acquired knowledge and its impact on our three-dimensional interpretation of the world - Optical Illusion

    Web: Amazing library with visual phenomena and optical illusions, explained
    http://michaelbach.de/ot/index.html
    Web: Anatomy of the eye
    https://www.aao.org/eye-health/anatomy/parts-of-eye
    Web: Demonstration of contrast gain adaptation
    https://michaelbach.de/ot/lum-contrastAdapt/
    Web: Demonstration of illusory contours and lateral inhibition. Mach bands
    http://michaelbach.de/ot/lum-MachBands/index.html
    Web: Demonstration of illusory contrast and lateral inhibition. The Hermann grid
    http://michaelbach.de/ot/lum_herGrid/
    Web: Further information regarding what and where/how pathways
    http://www.scholarpedia.org/article/What_and_where_pathways

    Discussion Questions

    1. When running in the dark, it is recommended that you never look straight at the ground. Why? What would be a better strategy to avoid obstacles?
    2. The majority of ganglion cells in the eye specialize in detecting drops in the amount of light coming from a given location. That is, they increase their firing rate when they detect less light coming from a specific location. Why might the absence of light be more important than the presence of light? Why would it be evolutionarily advantageous to code this type of information?
    3. There is a hole in each one of your eyeballs called the optic disk. This is where veins enter the eyeball and where neurons (the axons of the ganglion cells) exit the eyeball. Why do you not see two holes in the world all the time? Close one eye now. Why do you not see a hole in the world now? To “experience” a blind spot, follow the instructions in this website: http://michaelbach.de/ot/cog_blindSpot/index.html
    4. Imagine you were given the task of testing the color-perception abilities of a newly discovered species of monkeys in the South Pacific. How would you go about it?
    5. An important aspect of emotions is that we sense them in ourselves much in the same way as we sense other perceptions like vision. Can you think of an example where the concept of contrast gain can be used to understand people’s responses to emotional events?

    Vision by Simona Buetti and Alejandro Lleras is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Permissions beyond the scope of this license may be available in our Licensing Agreement.

    This page titled 5.1.5: Outside Resources was last modified on Wed, 12 Feb 2025 02:28:53 GMT and is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by Michael Miguel.