The legend of the twenty-fifth frame dates back to 1957. It was then that James Vykeri announced that he had tested in a certain provincial cinema a new method of hidden advertising that affects the subconscious. After a year, numerous checks revealed that there was neither the miracle method nor the test in the cinema that Vykeri spoke of. A year later, the discoverer himself disappeared, taking with him a large amount of money allocated for the application of his method, and in 1962, appearing again, admitted that he had invented the "25th frame effect" from start to finish. However, the legend turned out to be tenacious and still flourishes.
Instructions
Step 1
Film frames for us merge into continuous movement due to the speed of reaction of the retina: at the moment when the next image appears on the screen, we still see the previous one, and they are superimposed for us on top of each other. But because of the same phenomenon, the "inserted" frame will be clearly visible - you will see it superimposed on the next one or two frames. Therefore, if in the cinema you catch that strange pictures or inscriptions flash over the image, know that they are trying to use the mysterious "25 frame" against you.
Step 2
Despite the slow response of the retina, the human eye is incredibly sensitive - it is able to pick up even individual photons (light quanta). Therefore, the insert image can be seen even if the frame rate is much higher than twenty-four or twenty-five per second.
Step 3
The refresh rate of a typical computer or television screen is between 50 and 100 hertz, which means that the scan beam (or the signal that creates a dot on an LCD) travels through all the pixels on the screen and returns to its original point 75-100 times per second. It would seem that at this speed it costs nothing to insert any number of hidden frames into a movie or transmission.
However, here the role of the retina is played by the matrix of the screen itself. Its pixels continue to glow for some time after the beam or signal has left them. Therefore, any "hidden image" on the screen will be noticeable quite clearly.
Step 4
But even if for some reason you missed the twenty-fifth frame without realizing it, there is still nothing to be afraid of. It will not affect your behavior any more than any other frame of the movie you watched.
The main idea of the twenty-fifth frame method is Wykeri's words that the subliminal message (too short to be comprehended) will bypass conscious perception and go straight into the subconscious. In reality, as biologists and psychologists have long known, any information from the outside first undergoes subconscious processing, and only then what has passed through these filters is transmitted to consciousness. There is no point in making the hidden message so short.
Step 5
Thus, the twenty-fifth frame from the point of view of the subconscious is the same picture as all the others. It has no hidden magical power, and its use is very easy to spot and recognize.
