How many dots at the intersections are black?

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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
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Very interesting!
reach: rather globalillusionsoptical illusionstechnology

Answers by country

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answers
flagSwitzerland
0%
5%
0%
94%
19
flagAustria
4%
4%
0%
91%
24
flagAustralia
2%
0%
8%
88%
68
flagFrance
0%
6%
0%
86%
15
flagPoland
1%
3%
7%
85%
17955
flagGermany
3%
3%
5%
84%
151
flagCanada
1%
3%
5%
84%
57
flagGreece
0%
0%
8%
84%
25
flagBelarus
3%
10%
0%
80%
30
flagSingapore
0%
0%
15%
80%
26
flagthe United States
2%
5%
9%
78%
768
flagthe United Kingdom
1%
2%
11%
77%
212
flagUkraine
2%
3%
11%
76%
185
flagRussia
2%
7%
12%
73%
107
flagKazakhstan
0%
0%
13%
72%
22
flagIndia
5%
7%
12%
67%
260
flagthe Netherlands
5%
5%
16%
66%
18
flagMalaysia
0%
16%
11%
66%
18
flagthe Philippines
3%
3%
3%
65%
32
flagArmenia
0%
21%
7%
64%
14