"If it's a dark world, then it makes sense!"

With a melancholy look and some unwillingness, Zhou Yu said.

"When I was young, the world of darkness existed! If I have to investigate, I don't know when the dark world was formed, but this kind of organization is quite large, and the organization system is tight, around the tea party, with drugs, guns, and people as the focus to build a black trading network and interest chain, has been affecting the underground world for a long time. ”

"When I was not retired, I took over a lot of cases related to this organization, although those cases were cracked, but I know that the ones we caught are actually the outcasts of this organization, and we have not touched the core at all!"

"Really, you can only understand how terrifying this organization is when you collide head-on with this organization! However, now is not the time for them to continue to run rampant, as their wings continue to be cut off, the core tea party will be exposed to the world sooner or later, and the rotten and dark ending will be wiped out in the sun! ”

——This speech is very exciting, but the focus of the problem is not here, let's give the treatment plan of Little Blue Heart first!

"Well, far away, let's talk about this kid! Stinky boy, what are the most common hints to test you? ”

——Come on, Teacher Zhou Yu is so strict!

Feeling that the wind of words became too fast, Su Yile and Qin Xiang were stunned to look at the pair of masters and apprentices, to see what they could play!

Tangerine: "Well, the most common suggestion techniques include auditory suggestion, visual suggestion, olfactory suggestion, tactile suggestion, and sensory suggestion. ”

Zhou Lao: "Wrong, silly boy! From the perspective of behavioral psychology, sensory suggestion needs to consider people's thinking habits and behavioral characteristics, and also combine the surrounding environment on which the suggestion depends, so it cannot be regarded as the most ordinary suggestion technique! ”

Tachibana: "That's what you said before, teacher! ”

His expression was instantly embarrassed, and Zhou Lao, who glanced to the side, said, "Ahem, is there such a thing?" You're mistaken! ”

At this time, he suddenly became more serious, and Tangerine swore and said, "I'm not mistaken, that's what you told me in the first place, teacher!" ”

Looking at Zhou Yu's face that was almost black to the bottom of the pot, Su Yile and Qin Xiang were trying their best to hold back their expressions and not let themselves laugh, this was too funny for the master and apprentice!

couldn't hold it on his face, Zhou Yu hurriedly changed the question.

"Forget it, I'll test you again, what kind of way do you think it will be used on this child?"

After thinking about it, Tachibana replied: "I judge that it should be auditory cues, but I don't rule out the possibility of visual cues." ”

Zhou Lao: "Go on!" What are the possible sources of stimulus response for these two cues? ”

"The source of the stimulus response of auditory cues is generally special sounds, while visual cues are generally light or colors, but it is not excluded that some special objects become the source of stimulus responses. ”

Zhou Lao: "What about the characteristics of stimulus response?" ”

Tangerine: "Auditory cues, sensitive to sounds of a particular rhythm, visual cues, sensitive to special spectral arrangements, or sensitive to special color sequences, which are more stimulating." ”

smiled with satisfaction, except for the first question, which was very embarrassing, Tangerine's answers were all excellent, Zhou Lao: "Okay!" So, you come to me as an assistant, and I'll see what kind of hints this kid is suffering! ”

"Okay."

After the discussion, the two immediately began to prepare, Su Yile and Qin Xiang could only sit on the side and watch, the two of them were laymen, and they couldn't understand it, let alone help!

"I think the same as you, this child is most likely suffering from auditory cues, let's start with auditory cues!"

"Okay."

Let Xiao Lanxin lie in a machine that is infinitely close to the CT scan in the hospital, and Tangerine puts on a helmet to monitor the status of her brain waves.

Normally, a person's brain waves have four different bands.

α waves, the frequency is 8-12Hz, which is the frequency of brain waves when the person is in a relaxed state.

β waves, the frequency is 14-100HZ, which is the brain wave frequency of people in a waking state every day, which can also be subdivided into 12-16Hz, 16-32Hz (high wave), 33-35Hz (K composite wave), 35-150Hz (ultra-advanced β wave), which will not be repeated here.

Theta waves, with a frequency of 4-8Hz, are the frequency of brain waves in the early stages of sleep, during the transition stage from full wakefulness to deep sleep.

δ waves, with a frequency of 0.5-4Hz, are the frequency of brain waves when people are in a state of deep sleep, when people are almost completely unaware of the changes that occur in the outside world.

The frequency of the radio waves that react in Xiao Lanxin's brain is naturally locked between 0.5-4Hz, or even between 1-3Hz, and it is this state of brain waves that puts her in this state of not responding to external stimuli.

During the examination in the hospital, the doctor also found this almost strange phenomenon in Xiao Lanxin's body, and after countermeasures, they could only attribute this to severe self-psychological closure, and patients with severe self-psychological closure do show this state.

Moreover, for doctors who are not in the direction of psychological research, psychological suggestion is basically not included in the ranks of the objects of consideration, one is that they themselves do not understand, and the other is that how can the patient's family believe this kind of words!

"Okay, stinky boy, put headphones on her and watch the brainwave changes later."

"Okay."

After Tangerine put headphones on Xiao Lanxin, Zhou Lao began to stimulate her brain with frequency fluctuations from the auditory sense, to see if the sound frequency was the source of the stimulus response.

The frequency of the sound increased from 0.5 beats per second (0.5 Hz) to about 2,500 Hz, and the brain waves, which had been almost smooth for a long time, finally fluctuated.

Seeing this, Zhou Lao immediately turned off the audio device, and he saw the joy in Tangerine Tangerine's eyes.

They guessed correctly, the other party's hint method is auditory suggestion, and they very viciously use sounds with frequencies above 2500Hz to hint at Blue Heart.

The sound frequency that can be perceived by the human body is 20-20000Hz, higher than 20000Hz is called ultrasound, and lower than 20Hz is called infrasound.

In the range of 20-20000Hz, the sound of 2000-5000Hz is the most unbearable for people, including the well-known sound of knives scraping glass and fingernails scraping blackboards, which is unbearable because of the fact that this frequency of sound is harmful to people's hearing!

This is why after Lan Xin's brain waves changed, Zhou Lao did not continue the test in order to achieve more definite results, but directly turned off the sounding device.

In order to achieve the suggestion effect, it must be used for a long time, once the blue heart's hearing ability is destroyed, it is basically impossible to unravel the suggestion!

In that case, why don't the people of the organization destroy the victim's hearing ability by violent means, such as piercing the eardrum, after the suggestion is over, in order to prevent the suggestion from being dissolved?

The reason is very simple, people with a completely broken eardrum will not be completely deaf, or hear sounds in other ways, but the auditory damage caused by long-term high-frequency sounds will directly act on the auditory nerve in the brain, causing permanent deafness!

It is impossible to make the child permanently lose his hearing through simple violent means, and there is no point in implementing it.

Besides, the children who were sent in as test subjects would basically not survive, and it didn't matter if they could hear the sound, after all, everyone was dead!