Dallenbach image is actually a photo of a cow. Now that you have seen the cow, you will never be able to watch this image without seeing a cow anymore.
Can you remember the sequence of 9 random given playing cards?
The next experiment is a very simple memory card game. Click on the deck of cards on the left to show the next card. Try to remember the sequence. There is no time limit but you can not go backward. After the ninth card, click on the next link to show up the nine cards in order. Then try to set them back in the right sequence. Once a card is dropped on a slot, you will not be able to move it again. Try as many time as you like by hitting the F5 key on Windows or fn+F5 on Mac OS to update the page. Results are sent to a database. Your score will be shown at the bottom.
Thank you for your participation
What do you see?
As an introduction to cognitive psychology, this image is a perfect example of the influence of top-down processing. In other words: what we know has a huge effect on what we perceive. [D.Groome 2006, p37, image Dallenbach 1951]
Answer is in next post.
Are you keen to burn some calories using your neurons on very cognitive way? Jump on the first experiment straight away.