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Damage to Occipital Lobe

JUST A REFRESHER:

Shaken Baby Syndrome

  • the occipital lobe is responsible for visuospatial perception, color recognition, and motion perception
  • an injury to a child's brain as a result of child abuse
  • the anatomy of infants puts them at particular risk for injury from this kind of action

(but we already knew this)

Genetics

Trauma

UV Damage

  • similar to "Shaken Baby Syndrome"
  • any kind of accident
  • swelling of occipital lobe
  • during childhood
  • over-exposure to UV rays causes degeneration of retina
  • leading cause of blindness in adults

How Heredity Works with Color Blindness

itty bitty

teeny tiny

kramer shan

  • Red/green color blindness is passed from mother to son on the 23rd chromosome

Dichromats: Different Kinds of Color Blind

Protanopia

Deuteranopia

  • subtype of "red-green color blindness"
  • difficulty distinguishing between red and blue & red and green
  • encoded in the X-chromosome (hereditary)
  • most common form of color blindness
  • sub type of "red-green color blindness"
  • red, green, gray, purple, blue-green also cannot be distinguished
  • incredibly dangerous for driving
  • hues are shades of colors
  • can't distinguish traffic lights or brake lights
  • risk of road accident is comparable to having a blood alcohol level of between 0.05% and 0.08%
  • some one with normal vision can see 7 hues
  • some one with deuteranopia can only see 2-3 hues

The Color Blind

Brain

Tritanopia

Color Blind Test

(HYPERLINK!!!!!!!!!!!!!)

http://www.colour-blindness.com/colour-blindness-tests/ishihara-colour-test-plates/

  • "blue-yellow color blindness"
  • confusion of blue with green and yellow with violet
  • 1/10,000 people are affected (at most) #rare
  • can be both inherited and developed over one's life time

"developed"

- aging

- hard hit to the head

What Causes Color Blindness?

  • Genetics (before birth)
  • Damage to the Occipital lobe (after birth)

Ali Kramer & Shannon Phillips

This is the occipital lobe!

Color Blind Simulation

WORKS CITED

  • Brain Dysfunction by Location. (n.d.). Retrieved November 20, 2014, from http://www.merckmanuals.com/home/brain_spinal_cord_and_nerve_disorders/brain_dysfunction/brain_dysfunction_by_location.html
  • Causes. (n.d.). Retrieved November 20, 2014, from http://www.colour-blindness.com/general/causes/
  • Deuteranopia – Red-Green Color Blindness | Colblindor. (n.d.). Retrieved November 20, 2014, from http://www.color-blindness.com/deuteranopia-red-green-color-blindness/
  • Hershberger, M. (2014, March 1). Abusive Head Trauma (Shaken Baby Syndrome). Retrieved November 20, 2014, from http://kidshealth.org/parent/medical/brain/shaken.html
  • Occipital Lobes. (n.d.). Retrieved November 20, 2014, from http://www.neuroskills.com/brain-injury/occipital-lobes.php
  • Protanopia – Red-Green Color Blindness | Colblindor. (n.d.). Retrieved November 20, 2014, from http://www.color-blindness.com/protanopia-red-green-color-blindness/
  • Tritanopia – Blue-Yellow Color Blindness | Colblindor. (n.d.). Retrieved November 20, 2014, from http://www.color-blindness.com/tritanopia-blue-yellow-color-blindness/
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