How many dots at the intersections are black?

10%
25%
50%
None
In this scintillating grid illusion, dark dots seem to appear and disappear randomly. Various theories have been proposed to explain it. It may be caused by the mechanism of lateral inhibition (the capacity of an excited neuron to reduce the activity of its neighbors).
Steve Lamberty
0
Correct this question
7
Very interesting!
reach: rather globalillusionsoptical illusionstechnology

Answers by country

10%
25%
50%
None
answers
flagthe United Arab Emirates
0%
0%
9%
90%
11
flagAustralia
1%
0%
9%
88%
51
flagAustria
5%
5%
0%
88%
18
flagPoland
1%
3%
7%
86%
16991
flagGermany
4%
1%
7%
85%
98
flagCanada
1%
3%
3%
84%
53
flagBelarus
0%
11%
0%
83%
18
flagPakistan
0%
8%
8%
83%
12
flagIndonesia
0%
0%
9%
81%
11
flagNorway
0%
0%
20%
80%
10
flagthe United States
1%
5%
9%
78%
712
flagthe United Kingdom
1%
2%
12%
77%
174
flagKazakhstan
0%
0%
7%
76%
13
flagRussia
4%
6%
11%
75%
72
flagGreece
0%
0%
12%
75%
16
flagUkraine
2%
3%
13%
74%
118
flagIndia
4%
7%
13%
67%
228
flagthe Philippines
0%
3%
3%
66%
30
flagMalaysia
0%
17%
11%
64%
17
flagthe Netherlands
10%
10%
20%
60%
10