-
In general, when something is encountered, people immediately pass the information onCerebral cortexand produce a certain feeling corresponding to it.
For example, when people see the sea, they will transmit this information to the visual area, and after identifying the overall image (color, shape, size, etc.) in the area combined with it, they will pass this information to the lateral lobe of the memory entrance, and search for the name of this information, such as searching for "sea". <
At this time, this information will also be passed to theLimbic system, and the cerebral cortex also helps to inhibit the activity of the limbic system, preventing confusion and error in sensation.
For those with "synesthesia", the limbic system is less active, with a mix of senses in this area. So, when a piece of information is entered, they can easily produce several different feelings at the same time.
We often use the phrase "you can't see your fingers" to describe places that are so dark that they don't see light. Often, in extremely dark environments, people can only rely on touching their surroundings or using flashlights to discern directions. But some people have an unusual visual experience - in the black rumbling environment, although they can't see the person in front of them, they can see their hands shaking in front of their eyes.
To do this, the researchers designed a series of experiments. They placed 129 volunteers in complete darkness and asked them to describe their visual feelings. In the first few experiments, volunteers were required to wear a 100% blackout blindfold and then wave their palms in front of their eyes.
As a result, a small number of them said they could see the amplitude of their palms. Then, the researchers waved their palms in front of each of the volunteers, and at this point, everyone said they couldn't see anything.
It seems that the problem is not in the superior vision that can "penetrate" the night. <>
Researchers speculate that this vision is an "illusion".Perhaps it has something to do with the brain – because of the connectivity between different brain regions, the researchers believe that this small group of volunteers who can "see" their palms swinging in the dark may have different connections between brain regions than most people.
-
I don't think it's possible that the eyes are the first thing people see, so there is no such thing.
-
People can only rely on touching their surroundings or using flashlights to discern directions.
-
Impossible, these are all rumors, no one can see these strange things.
-
, and the cerebral cortex also helps to inhibit the activity of the limbic system, preventing confusion and error in sensation.
-
I don't think so, the human brain can't see, which sounds strange.
-
No, the glasses are the first visual organ, everything passes through the glasses and then the brain reacts.
-
What the eye sees is what the brain sees, and the brain processes everything.
-
The reason why the eye can see things is because the brain processes it.
-
In fact, what our eyes see is what our brain sees, so there is no such thing.
-
I think it's possible, but it's all happening.
-
Probably not, the eyes feel it directly, and then transmit it to the inside of the brain.
-
We don't know about this, because there are still a lot of things in the world that we don't know.
-
Because the eyeball is a foreign body to the brain.
Once the brain discovers the presence of the eyeball, it will carry out a kind of self-protection, which will also cause damage to our eyeball, and even lead to blindness.
When the eyeball is damaged, the lens protein in it will also rupture, and the body's immune system will detect it as an antigen, and the body will produce antibodies accordingly. These antibodies are used to attack the eyeball because they will detect the presence of another healthy eyeball and will directly attack the other healthy eye until the eyeball is dissolved.
We can see the skeleton from the skeleton in the human skeleton only to see the hole left by the eyeball, but not the eyeball, which means that the eyeball is separated from the brain.
Eyes in the Immune Blind Zone:
The eye is an immune dead end, mainly because the cornea does not have any blood vessels, and the human eye has an independent immune system, which is usually distinguished from the body's immune system.
The eye is a very important tissue of the human body, usually the eye immune cells belong to the body, not to the eye, if it is a simple corneal lesion, in general, there is no need to worry about it, through the positive **, you can achieve a better ** effect.
When there are abnormal symptoms on the eyes, there is pain in the eyes, you should go to a regular hospital for a detailed examination as soon as possible, usually in order to understand the cause of eye pain in time, and carry out ** according to the cause in time, in order to promote the recovery of the eyes as soon as possible. <>
-
Because the eye has its own system in order to avoid the invasion of viruses, it has its own immune system. Here's why:
1. The eye is also one of our organs, and it does not share a free system with the human body, because under normal circumstances, our body's immune system.
When an alien invader is eliminated, various conditions such as inflammation and increased body temperature usually occur.
2. The eyes are often fragile and unbearable. Like the brain, it is packed with neurons in its internal structure.
3. So if they are inflamed or local temperature.
soaring, which is bound to lose internal organization. It does not regenerate and heal like nails and wounds, and once damaged, it will affect vision.
Therefore, this kind of protection is not suitable for the protection of the eyes and forests, and they choose the Duwen portal.
Trivia about the brain:
The brain is a dynamic organ, and it is largely shaped by experience. In other words, the structure of the brain can be reorganized by continuous learning and accumulation of experience.
Although it is said that the bigger the head, the smarter it is, but Einstein's head was actually very small.
Stop shouting, the head is the fattest organ in your body, and it is 60% fat.
With a little time, the human brain can produce 25 watts of electricity, enough to light a light bulb.
Scientists estimate that the human brain in the 21st century can retain about 1,000,000,000,000,000,000 pieces of data in a lifetime. <>
-
Structure of the human eye: The eye is a complex organ made up of many tiny parts, each of which is essential for normal vision. Clear vision depends on the coordination of all parts of the eye.
A person can see a specific object such as a tree by reflecting the tree into the human eye through light, from the cornea into the eye, which is a thin film on the surface of the eyeball. However, light passes through the iris (the pigmented membrane in front of the eyes), and in the middle is the pupil. The iris controls the amount of light entering by constricting the pupil.
The lens projects light onto the retina. The cornea performs maximum refraction, while the lens suspension is delicately focused. Healthy eyes that automatically adjust to the distance of the object and can be clear**.
When the object is near, the ciliary muscle of the eye contracts and the lens convexity increases. When looking at distant objects, the ciliary muscles relax and the lens convexity decreases. Behind the lens and in front of the retina is the vitreous, which contains a clear, gelatinous substance called vitreous fluid.
Light enters the retina through the vitreous. The retina covers two-thirds of the eye and controls the width of vision. When vision is clear, light energy is focused directly on the retina.
If light rays are focused in front of or behind the retina, vision will be blurred. The retina is made up of millions of cells that specialize in receiving light, called retinal rod cones, which turn light into electrical signals that are transmitted to the brain through the optic nerve. The retinal rod cone has the function of observing and recognizing various colors in the dark.
The macula, located in the middle of the retina, is the part with the most cones. The small concave in the middle of the macula is where the pyramid is most concentrated. The macula is responsible for central vision, recognizing colors and details of objects.
The periretina is dominated by rods, which can recognize motion and objects on both sides in the dark**. The optic nerve is located behind the retina and is responsible for transmitting signals from light-receiving cells to the brain. Each eye transmits a slightly different image signal.
The image is inverted. When it reaches the brain, the image is corrected to form an image. The complex process of analyzing the data transmitted by the optic nerve is called the visual process.
-
Just because something is different with the human eye doesn't mean it doesn't exist. As the saying goes, "hearing is false, seeing is believing", so many people must believe that what they see with their eyes must be true, but more and more science shows that what they see must exist, but what they can't see does not mean that they don't exist.
1. Molecules and atoms.
Two centuries ago, due to the underdevelopment of science and technology, chemistry was still in its infancy, so many sciences believed that water was made up of water molecules, and there was no smaller unit than the molecule. It wasn't until the invention of the super microscope that people gradually realized that there was something smaller than a molecule, that is, atoms. Atoms make up molecules, molecules make up substances, and the substances we macro to the top are just molecules combined, and we can only see molecules with the help of a microscope, and atoms can only be seen with the help of a more professional microscope.
So, just because the human eye can't see molecules and atoms really doesn't mean they don't exist, they do.
2. Ultraviolet rays and infrared.
We have all learned physics in junior high school, and the human eye can only see a specific wavelength of light, that is, the colors of red, orange, yellow, green, blue, and violet. But at the limit of these lights, there are two types of light, one is ultraviolet and the other is infrared. We can't see this light with our human eyes, but both kinds of light exist.
People can use ultraviolet rays to kill bacteria, for example, when we bask in the sun, we use the sun's ability to emit ultraviolet rays to kill human bacteria, and we can use infrared to determine the structure of substances, for example, mass spectrometers use this property.
3. Magnetic field. The compass we use, the carrier pigeon's natural ability to distinguish directions, and so on, all of these properties work using the Earth's magnetic field. We invented the compass a long time ago and it was possible to prove that a magnetic field exists. But we can't see it with the human eye.
-
Not really. The human eye sees things mainly because of the reflection and refraction of light, and there will be some things that cannot be seen. Just like bacteria can't be seen with the human eye, it doesn't mean they don't exist.
-
No, because the objects that the human eye can see are limited, and there are many microorganisms in life, and the human eye cannot see them, and they need a microscope to see them.
-
What can be seen with the naked eye can only be seen by the human eye, and those microorganisms and bacteria cannot be seen by the human eye, but they exist.
-
Dreams have nothing to do with good luck or misfortune.
Many people have such troubles: after falling asleep, they often have nightmares and even wake up. Due to poor sleep, the next day I felt dizzy, which affected my work and study. Some also worry that nightmares will bring bad luck to them, causing psychological fear and uneasiness.
In fact, dreaming is a normal psychological phenomenon produced by people during sleep. Under normal circumstances, the nerve cells in the brain are in a state of inhibition during sleep, and this inhibition process is sometimes relatively complete, sometimes not complete. If it is not completely suppressed, there are still a few areas of the cerebral cortex where nerve cells are excited, and people will have dreams.
Because the activity of a small number of cells loses the control and regulation of the entire cerebral cortex during the wakefulness state, certain fragments of memory become active unfettered, and may manifest a variety of strange dreams that are different from normal mental activity. At this time, if the nerve cells involved in language and movement are also excited, not only dreams will occur, but they will also talk or sleepwalk.
So what can be done to reduce nightmares?
Pay attention to the body posture of sleep. Generally, it is better to sleep on the right side. When sleeping on your back, keep your hands and feet naturally vertical, and don't put your pillow too high. Correct the bad habit of sleeping on your stomach.
-
The eye, also known as the eye, eye, and move, is the organ that most animals receive light and form images in the brain. For humans, it is the organ of vision, one of the most important sensory organs. The eye is a very delicate organ that can change its specific form in different environments, allowing humans to obtain correct information in complex environments.
The simplest eye structures can detect the light and dark of the surrounding environment, and the more complex eye structures can provide vision (compound eyes are often found in arthropods, such as insects, and often have many simple small ocular formations that produce an image).
In many vertebrates and some mollusks, the eye imprints light by projecting light onto the light-sensitive retina, where light is received and converted into signals that are transmitted to the brain through the optic nerve. Usually the eye is spherical, filled with a clear, gel-like substance, with a lens for focusing, and usually an iris that controls how much light enters the eye.
The dog's eyes are white, probably in two cases.
1. Dogs suffering from keratitis - the initial appearance of corneal opacity, the reason is because of mechanical damage (abrasions, hits, bruises, etc.) or near the eye to prevent the lesion directly implicated in the eye infection, and some infectious diseases and parasites (ocular conjunctival nematode disease) caused by such diseases. >>>More
No. Although cats are nocturnal animals, they still have keen eyesight. During the day, cats cannot see clearly within 20 centimeters, and cannot see warm colors, and the saturation (color vividness) of things they see is relatively low, but in addition, cats have almost the same eyesight during the day as ordinary people. >>>More
It may be night blindness, lack of vitamin A. Vitamin A is a component of photoreceptors in visual cells, and when vitamin A is deficient, sensitivity to low light is reduced, dark adaptation disorder occurs, and night blindness occurs in severe cases. >>>More
Wait, a breath of fresh air.
Piggyback on my heavy thoughts. >>>More
Appreciation and analysis should be written from the aspects of theme ideas, artistic characteristics, etc., and the thinking and emotional activities in appreciation generally start from the specific feelings of the artistic image, and realize the cognitive leap from the perceptual stage to the rational stage, which is not only restricted by the image and content of the work, but also supplements and enriches the image according to one's own thoughts and feelings, life experience, artistic views and artistic interests. >>>More