Which area is brighter?
A
B
Both are the same
It depends on the order of seeing
This is the well known checker shadow illusion, first published in 1995 by Edward H. Adelson, Professor of Vision Science at MIT. The area A appears darker because of its light surrounding. At the same time, area B, surrounded with dark areas, appear lighter.
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Answers by country
A
B
Both are the same
It depends on the order of seeing
answers
Singapore
31
the United States
844
Australia
91
Poland
20662
the United Kingdom
270
Canada
65
the Netherlands
28
Belarus
56
Greece
30
Switzerland
46
Germany
465
Austria
91
Republic of Ireland
30
Russia
310
the Philippines
49
India
380
Ukraine
279
Czech Republic
23
Kazakhstan
42
the United Arab Emirates
27