The dynamics of speckles in the image plane of a monolayer of cells cultivated on a glass substrate has been recorded. Cell cultures HEL-3, L-41, and Vero were selected as the objects of research. The digital value of the radiation intensity I in one pixel and the parameter η characterizing the change in the intensity distribution on an 10×10 pixel area was recorded for 24 hours. The multiple determinacy coefficient of three cell cultures, which was obtained from the time dependences of η, was equal to 0.94.