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
842
Australia
90
Poland
20646
Canada
65
the Netherlands
28
the United Kingdom
269
Greece
30
Belarus
55
Switzerland
46
Germany
465
Austria
90
Republic of Ireland
30
Russia
309
the Philippines
49
India
379
Ukraine
279
Czech Republic
23
Kazakhstan
41
the United Arab Emirates
27