An example system including a processor and a memory. The memory resource may store machine-readable instructions to cause the processor to assign a subject state indicator to a pixel to depict a subject in a video frame of a video signal, wherein the subject state indicator is based on a psychophysiological state of the subject to be depicted by the pixel, embed the subject state indicator for the pixel in the video signal, and broadcast the video signal with the embedded subject state indicator for the pixel to a display device.