Retinal summation
Okay kiddo, let's talk about retinal summation which is a fancy term for how our eyes see things.
When light enters our eyes, it hits special cells in our retina called rods and cones. These cells turn the light into electrical signals that travel to our brain, which then interprets what we see.
Now, when there is a lot of light coming into our eyes, our rods and cones get very excited and send lots of electrical signals to our brain. This is called high retinal summation because many cells are activated at once.
On the other hand, when there is only a little bit of light coming into our eyes, our rods and cones don't get as excited and don't send as many signals to our brain. This is called low retinal summation because fewer cells are activated.
The amount of retinal summation can affect how we perceive things. For example, when we're in a bright room, we can see things very clearly because our rods and cones are all sending lots of signals to our brain. But when we're in a dark room, things are harder to see because there isn't as much light and our rods and cones don't send as many signals to our brain.
So, retinal summation is just a way to describe how our eyes and brain work together to help us see the world around us. Pretty cool, huh?
When light enters our eyes, it hits special cells in our retina called rods and cones. These cells turn the light into electrical signals that travel to our brain, which then interprets what we see.
Now, when there is a lot of light coming into our eyes, our rods and cones get very excited and send lots of electrical signals to our brain. This is called high retinal summation because many cells are activated at once.
On the other hand, when there is only a little bit of light coming into our eyes, our rods and cones don't get as excited and don't send as many signals to our brain. This is called low retinal summation because fewer cells are activated.
The amount of retinal summation can affect how we perceive things. For example, when we're in a bright room, we can see things very clearly because our rods and cones are all sending lots of signals to our brain. But when we're in a dark room, things are harder to see because there isn't as much light and our rods and cones don't send as many signals to our brain.
So, retinal summation is just a way to describe how our eyes and brain work together to help us see the world around us. Pretty cool, huh?