We blink our eyes without thinking about it but spend a remarkable fraction of our awake time while blinking. Most adults do it about 14 to 17 times per minute; that adds up to 840 to 1,020 blinks every hour, and if you sleep for eight hours every night, you probably blink about 13,440 to 16,320 times a day while you’re awake.
They analyzed the various frequencies in visual stimuli to study how blinking affects what the eyes see compared to when the eyelids are closed.
How sensitive are people in perceiving different types of stimuli?
They found that when people blink, they become better at noticing big, gradually changing patterns – blinking supplies information to the brain about the overall big picture of a visual scene.
We show that human observers benefit from these transients and that this perceptual enhancement occurs independently from motor signals associated with blinks.