Chapter 397: A Cat Test
Ye Zhou raised his head and saw a small sign on the wall of this operating room--or the laboratory, and the sign was written in Chinese:
Sky Eye.
With his eyes closer, Ye Zhou found that in front of him was an extremely complicated and somewhat funny operating table.
It is said to be complicated because in addition to the operating table, shadowless lights and other vital sign monitoring instruments in the scene, there are many other monitoring units next to this operating table, and the screens of these monitoring units are full of symbols and data that Ye Zhou could not understand at all.
It is funny because it is not a person lying on the operating table, but an obese cat who is obviously knocked down by anesthetics and is grinning and sticking out his tongue.
If Ye Zhou didn't know that this simulation was related to the AES system, he would probably think that this was the scene of a high-end cat sterilization surgery.
"Is the optic nerve signal sensor connected?"
The middle-aged doctor's question next to him pulled Ye Zhou back from his thoughts. He looked around in confusion and was about to answer, but another young doctor in front of him who seemed to be specializing in operating the monitoring system said:
"The connection is ready, everything is ready and it's time to start."
"Okay, then prepare to start waking up. Ye Zhou, wake up the cat."
"Ah? How do I wake up?"
"........whatever you do, just let it open its eyes anyway."
Hearing this, Ye Zhou stretched out his hand helplessly and tentatively stroked the cat's belly on the operating table, but the other party did not respond to it, and even twitched comfortably for a few times.
After hesitating for a moment, Ye Zhou increased the force on his hand and pinched one of the cat's front paws on the operating table. After a while, the cat finally opened his eyes slowly.
Perhaps the anesthesia effect had not passed yet, and the cat looked around, but his whole body was still weak. The middle-aged doctor next to him saw this scene and quickly spoke:
"Okay, just wake up. Ye Zhou, take the picture album next to him."
Ye Zhou turned his head and saw that there were indeed a bunch of picture albums on the table next to the operating table, and the picture albums were filled with various figures, dot matrixes, and a small number of objects that existed in reality.
As the memory flow continued to flow in, Ye Zhou finally understood the so-called operation, or the purpose of the experiment, and the role he played in this experiment.
This is the legendary cat brain visual nerves are experiments. In the 1960s, this experiment led by the Ugly Kingdom revealed several major problems in the biological vision system and won two Nobel Prizes for these discoveries.
In this experiment, the researchers found that visual cells in the visual cortex were divided into three categories, responsible for simple, complex and super-complex visual signal processing, and began to realize that human visual processing started with simple large cells.
In other words, what humans learn first is to identify the edges and corners of things, and then they begin to learn a series of deep content such as color, light and darkness, background distinction, etc.
This theory laid the foundation for later machine vision research. It can even be said that the most critical step for humans to achieve "artificial vision" is to take from here.
Now, the role Ye Zhou plays is the assistant of this experiment.
Looking at the serious expression of the middle-aged doctor, Ye Zhou quickly got up and surrounded the cat's head with a fence dedicated to blocking his sight. Then, he raised the picture album in his hand to the cat's head, and another young doctor immediately began to record the active signals of nerves in various positions of the cat's brain.
"Well... OK, this picture is OK, next one."
"The reaction is not strong, what is this picture?"
Ye Zhou picked up the album and took a look, and replied:
"Abstract-art gouache paintings are a lot of messy colors."
The young doctor glanced at him strangely and said:
"This is 'Color 002'. Can you look at the number on the back before describing it?"
Ye Zhou smiled embarrassedly and followed his instructions and continued to change the album in his hand.
"This is a good response, what is this?"
“It’s line 004.”
"Okay, line 004, record it first, wait and repeat the test several times. Next picture-----test the light and dark."
Ye Zhou selected content that meets the requirements from the album in his hand. After holding it to the cat's head, the young doctor frowned slightly and replied:
"It's a little stronger than the color, but the intensity is limited, far less than the lines. Go back to the lines, start from simple to complex, test one by one."
"clear."
Ye Zhou replied simply and neatly that as the experiment continued, his movements became more and more skillful, and he even began to have time to observe the changes in various curves and data on the display screen with young doctors.
Just as the result of memory flowing into him, in this experiment, the cat's visual feedback strictly follows the order of intensity from lines, to light and dark, and then to color. For feedback from topics in a more complex context, a gradient of different sensory cells and nerves produces feedback delays from different sensory cells and nerves.
"After visual triggering 80ms, the visual signal will be reflected in the multivariate response mode of the scalp. After 300ms, the perception of the visual object begins to deviate from the feedforward visual object information and rely on external background scenes."
"From the time matrix, we set up visual information decoding monitoring at the time interval point of visual triggering to 600ms. The results show that the perceptual accuracy reaches a peak in about 200 milliseconds."
"This is basically the same as the results we predicted in the early stage and can support the conclusion."
After the young doctor finished speaking, the middle-aged doctor beside Ye Zhou nodded and replied:
"Then continue to test a few more times. If the change is within the error range, start to output the conclusion."
The young doctor nodded and began to continue to focus on studying the results on the screen, but Ye Zhou suddenly felt a little confused.
The conclusion of this conclusion seems to be a bit too simple.
Although it can be explained that they had conducted a lot of tests before this experiment, he always felt that if only these two conclusions were drawn under such a complex and precise experiment, it seemed that it was not the limit of this experiment.
He looked at the historical data displayed on the screen seriously. Although he was not clear about the underlying principles, if he wanted to analyze differences and rules, he was definitely better than anyone present with the talent of "decision maker".
He tried to continue changing the picture album in his hand, and the monitoring values on the screen continued to change. After several repeated cycles, Ye Zhou suddenly discovered a pattern.
Every time the screen is switched, the perceived signal of the visual nerve will be beaten similar to a "double-click".
The more complex the picture is, the more obvious the signal beats.
This is not a phenomenon that can be explained by the "three-layer visual cell" theory, because in every neural region, such beatings are synchronized.
Ye Zhou didn't know the principle, so he directly told his discovery. After hearing his analysis, the two doctors looked at the screen carefully and finally nodded.
"Yes... Ye Zhou is right. We have always regarded this kind of beating as a routine disturbance before, but now it seems that such beating should have some cause."
"The beating is too regular... Can you say that every nerve cell has two sets of sensing units?"
"Continue to test and use complex pictures to test!"
Hearing the doctor's words, Ye Zhou quickly picked up the picture album in his hand. The experiment that had already reached the end began again. This time, what they were about to face was a brand new phenomenon.
"It can be confirmed that the signal beating in the same area should come from the same nerve cell."
"Then our early theory may need to be further improved, not only cell stratification, but also the stratification of individual nerve cells."
"I think it's very likely that super-complex perception is not done by cell clusters, but by a single cell."
"Is it possible that each cell will be divided into two parts? Some are responsible for feeling, some are responsible for integration? There is still a need to continue testing..."
Listening to his words, Ye Zhou was about to answer, but the picture in front of him gradually darkened.
This stage of simulation ends again.
Chapter completed!