Perception of Stimuli

Close your left eye and stare at the +. Move your head closer to the screen and keep staring at the +, but pay attention to the dot. What happens? Explain why.

Explain it yourself first, then check at Serendip’s great website.

You need to know the structure of the eye to succeed! This eye structure tutorial from Sumanas might help.

The solution and loads more perception demonstrations can be found at Serendip’s playground.

Your biggest challenge is this one: “Explain the processing on visual stimuli, including edge enhancement and contra-lateral processing“.

So here are our class notes:

There are many more resources on the main page for this topic:

E2 Perception of Stimuli (including some cool links to illusions)

Here is Pawan Sinha talking about how the brain learns to see, and how we can help the children who are born blind in India. Find out more about Sinha’s work and Project Prakash at his university website (MIT).

About Stephen

International Educator: China via Japan, Indonesia & the UK. Director of Innovation in Learning & Teaching. Science educator. Twitterist (@sjtylr), dad and bloggerer. MA International Education & current EdD student. Experienced Director of Learning & MYP Coordinator. Interested in curriculum, pedagogy, purposeful EdTech and global competence. Find out more: Science site:

Posted on February 4, 2011, in Uncategorized and tagged , , , . Bookmark the permalink. Leave a comment.

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