Complex sentence: The human eye and its brain interface, the human visual system, can process 10 to 12 separate images per second, perceiving them individually, but the threshold of human visual temporal sensitivity perception varies depending on what is being measured.
Split into simpler sentences: The human eye and its brain interface, the human visual system, can process 10 to 12 separate images per second, perceiving them individually. The threshold of human visual perception varies depending on what is being measured.