This lecture mostly elaborates on the perceptual principles laid out in the book, particularly top-down and bottom-up processing and streaming.

What do you think is shown in these pictures? You're using bottom-up processing to decode them. If you can't tell, go to the Canvas page for a hint. Then, you'll be using top-down processing.

https://www.moillusions.com/wp-content/uploads/photos1.blogger.com/blogger/5639/2020/400/dalmation.gif

https://i.pinimg.com/originals/fa/a4/82/faa4826de4dcdff35452e562a55fa3ea.gif

https://pbs.twimg.com/media/Bm5bnf4CcAAOYjX.jpg

The McGurk Effect: https://www.youtube.com/watch?v=PWGeUztTkRA

Bernstein's Worker: https://upload.wikimedia.org/wikipedia/commons/thumb/3/30/Cyclogram_Gastev_TSIT.jpg/330px-Cyclogram_Gastev_TSIT.jpg