The Eye (part 1) illusions anatomy brain function

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Presentation transcript:

The Eye (part 1) illusions anatomy brain function

In this illustration, the stairs should turn upside down during a steady gaze. The wall with the floating glass sphere will shift from the foreground to the background (or vice-versa)

Stare at the picture (on the left) for about 45 seconds Stare at the picture (on the left) for about 45 seconds. Then, stare at the white section of this image (the right section). You should see the Queen again. Keep your concentration, and for those 45 seconds, don't take your eyes off the picture.

Do you think that these lines are parallel. They are Do you think that these lines are parallel? They are! But it doesn't look like it does it? We suppose that's what makes it an illusion!!!

Illusion handouts Ghostly black patches appear at the white intersections. The illusion was noted by Hermann (1870) while reading a book on sound by Tyndall (1869).

Interested in More? Check out Heinemann Hotlinks http://www.pearsonhotlinks.co.uk/9781846904837.aspx

How can these optical illusions be explained using the anatomy of the eye?

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