Imagine you are filming the world with a professional camera. When you rapidly move the camera one direction to another, it makes a blurry movement that will make audience feel dizzy.
Well if I told you that, our eyes are too making this sudden leaps 2 to 4 times in a second while we are awake, moreover achieve to do each one in a really short timespan like 30-50 milliseconds, even continue to this sudden leaps while we are in our deepest sleep phase called REM?
With its scientifically called name "saccad" is a term that acquires its origin from the old French word "saquer" (suddenly pulling), is the definition of that sudden moves that our eyes perform daily and it happens approximately 150.000 times just even in the times that we are awake. However we never realize this sudden jolts or blurs; because the main job is done at our brains editing table that cleans out the shaky frames: Saccadic masking.
This editing table term is not only a simile but a process that is neurophysiological and happens in our visual cortex which can be measured. In the really short time period of our eyes quick movement, our brain actively represses visual system's magnocellular pathway which is sensitive to sudden movements; that's how it functions like an editor and temporarily cuts out the neuro canals that transmit the blurrines of the movement to the center. Furthermore, experiments with the eye muscle paralysis patients (ophthalmology) are great proofs that this progress is independent from retina and a central mechanism. Even though patients are not be able to move their eyes physically one millimeter, it has been observed that their brains represses the visual perception at the moment of the "saccad" that is targeted by the brain. This clinical vedrict proved us that saccadic masking is a proactive neurological mechanism that our central nervous system produces from scratch.
Well, since our brain cuts out these blurry frames right away,then why don't we experience life through disconnected scenes or sudden blurry moments? The answer is hidden behind the brains impeccable skill of connecting called trans-saccadic integration. In this integration progress V3A and V6 like regions in our visual cortex step in and update our spatial location by dynamical re-mapping. That's how uninterrupted continuity is provided but not a bare optical illusion.
As a result we are not living in a bare reality but instead we are living a flawless reality fiction that our central nervous system meticulously process and builds through coming up motor sensory guesses every milliseconds. And even new while your eyes Running through this Lines the blurry Spaces are being deleted and the Editor of your Brain offers you an uninterrupted, smooth meaning.
References
Binda, P., & Morrone, M. C. (2018). Vision during saccadic eye movements. Annual review of vision science, 4(1), 193-213.
De Pisapia, Nicola, et al. "Backward Masking and Unmasking across Saccadic Eye Movements." Current Biology, vol. 20, no. 7, Apr. 2010, pp. 613–617.
Well if I told you that, our eyes are too making this sudden leaps 2 to 4 times in a second while we are awake, moreover achieve to do each one in a really short timespan like 30-50 milliseconds, even continue to this sudden leaps while we are in our deepest sleep phase called REM?
With its scientifically called name "saccad" is a term that acquires its origin from the old French word "saquer" (suddenly pulling), is the definition of that sudden moves that our eyes perform daily and it happens approximately 150.000 times just even in the times that we are awake. However we never realize this sudden jolts or blurs; because the main job is done at our brains editing table that cleans out the shaky frames: Saccadic masking.
This editing table term is not only a simile but a process that is neurophysiological and happens in our visual cortex which can be measured. In the really short time period of our eyes quick movement, our brain actively represses visual system's magnocellular pathway which is sensitive to sudden movements; that's how it functions like an editor and temporarily cuts out the neuro canals that transmit the blurrines of the movement to the center. Furthermore, experiments with the eye muscle paralysis patients (ophthalmology) are great proofs that this progress is independent from retina and a central mechanism. Even though patients are not be able to move their eyes physically one millimeter, it has been observed that their brains represses the visual perception at the moment of the "saccad" that is targeted by the brain. This clinical vedrict proved us that saccadic masking is a proactive neurological mechanism that our central nervous system produces from scratch.
Well, since our brain cuts out these blurry frames right away,then why don't we experience life through disconnected scenes or sudden blurry moments? The answer is hidden behind the brains impeccable skill of connecting called trans-saccadic integration. In this integration progress V3A and V6 like regions in our visual cortex step in and update our spatial location by dynamical re-mapping. That's how uninterrupted continuity is provided but not a bare optical illusion.
As a result we are not living in a bare reality but instead we are living a flawless reality fiction that our central nervous system meticulously process and builds through coming up motor sensory guesses every milliseconds. And even new while your eyes Running through this Lines the blurry Spaces are being deleted and the Editor of your Brain offers you an uninterrupted, smooth meaning.
References
Binda, P., & Morrone, M. C. (2018). Vision during saccadic eye movements. Annual review of vision science, 4(1), 193-213.
De Pisapia, Nicola, et al. "Backward Masking and Unmasking across Saccadic Eye Movements." Current Biology, vol. 20, no. 7, Apr. 2010, pp. 613–617.