Colour Blindness and Navigating the Web

(Seeing Colors, pp. 281-288)

Take this colour blindness test. 
For those of you who aren't color blind, these color wheels simulate common forms of color blindness. 
Many Web pages aren't comprehensible for color blind people; they have colored texts that merges with the background to look blank; they have icons that color blind people can't appreciate.  Develop a Christmas Web page that color blind people can appreciate and enjoy.  You might want to use   as a "model." 

Feature-Integration and Children's Reading Development

(Integrating Sensory Information into Coherent Patterns, pp. 298-303)

Complete this module on Treisman's feature-integration theory. (it's also on your CD; clicking this link will open a new window)
Sarah's five-year-old son, Sean, has troubles distinguishing his letters in Kindergarten. He often writes the letter, b, as d and the letter, d, as p. Sometimes he mistakes I for T. He makes the same mistakes in his early reading, reading the word, bed, as dead and so on. Use Treisman's feature-integration theory to explain to Sarah how Sean might be confusing his letters. Based on the theory, what advice would you give her to help Sean in his reading and spelling?
 

Some other interesting sites you may want to check out... 

Color! 
This massive site describes the importance of colour to our perceptions of the world. 

Cow's Eye Dissection from the Exploratorium!
The way they teach this process, you could actually dissect alongside the web-tutorial. As we don't actually have any eyeballs handy, just look at the pictures.

Seeing What you Don't See
Check out your blind spot with this activity at Seredip, a great set of brain-based demonstrations developed at Bryn Mawr College.

Sensation(al) Site
This site answers many interesting sensation questions like "how do we perceive colour?" and has lots of good graphics.

Magic Eye Stereograms 
Miss the Magic Eye in the Saturday Journal comics?  Here they are on your own computer - as well as tips for viewing stereograms. These are wicked when you're tired.

Illusions and explanations
The Exploratorium in San Francisco (worth a visit!) has a great on-line exhibit of illusions and other phenomena. 

The Joy of...Visual Perception
This is a great online textbook of vision. Good text and good demonstrations.

Gray Web site 
Pull down to Chapter 8 to review concepts for this topic. 

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