Zheng Ren and Su Yun change clothes in the dressing room. Zheng Ren is always silent.

"What do you think?" Su Yun asked.

"The children's illness."

"Are you ashamed?" Su Yun asked contemptuously, "just a few years after graduation, when the children call, is that what you can call?"

"When I was hospitalized for a year, I felt a lot older." Zheng Rendao.

"It's only a few months, not even half a year." Su Yun corrected the language defects in Zheng Ren's words.

"Come on, you said there was no problem, but you were disgusted and vomiting. Have you seen similar cases?" Zheng Ren asked.

"I've seen it alone, and you've seen it too. Isn't it hysteria?" Su Yun obviously wants a lot.

When chatting with Zheng Ren, you can say anything. If he said this in front of others, even if it was Zhou Litao... Even director Pan, he wouldn't say it.

Hysteria, also known as separation and conversion disorder.

It is a mental disorder caused by mental factors, such as life events, inner conflict, suggestion or self suggestion, acting on vulnerable individuals.

The main manifestations of hysteria are separation symptoms and conversion symptoms. The symptoms are functional, so psychotherapy plays an important role.

In the emergency department, we often encounter hysterical patients, such as the girl who imagined that she was pregnant in Haicheng.

But two or three people attack at the same time, not to mention hundreds of students of imperial Medical University attack at the same time.

Su Yun finished, took out a cigarette and threw it to Zheng Ren.

"Don't think about it, just walk and see." Su yundao.

But Zheng Ren didn't pick up the cigarette he threw. It fell on him, fell to the ground and rolled aside.

"What do you think? Why are you always distracted?" Su Yun frowned.

"Hysteria? Mass hysteria, have you studied it?" Zheng Ren suddenly asked.

"..." Su Yun was stunned and then shook his head.

"Don't move, I'll think about it." Zheng Ren entered the state of searching for cases again. The whole person looked like a stone carving.

"Sand sculpture." Su Yun despised, "don't think about it. Group hysteria. Do you think it's a ghost pressing the bed? Or a collective one?"

"That's not the case." According to historical records, a dance plague broke out in Strasbourg of the Holy Roman Empire in the summer of 1518. Do you have any impression

"A woman suddenly danced in the street. After four days in a row, 34 people participated in the dance, and the streets began to be crowded. Within a month, more than 400 people in the whole city were swinging happily and were blocked." Su Yun frowned. "Is that what you're talking about?"

"Yes." Zheng Ren bent down, looked for it, picked up the smoke that fell on the ground, and seemed to have an idea in his heart.

"I think there is something wrong with the historical data. This sensationalism was probably compiled by the bards at that time." Su Yun dismisses, "like nuns learning cat barking, these things are the same."

In medieval records, a more frightening scene is the collective learning of cat barking by Paris nuns.

All this began with a "meow" from one of the nuns. Subsequently, the nuns around them also learned cat barking with her as if they had been infected.

Nuns' cat calls are regular. All nuns meow for hours at the same time every day.

According to analysis, mass hysteria often occurs in schools, factories, monasteries, military barracks and other places with strict discipline and high environmental pressure.

Zheng Ren knew that Su Yun was talking about it, and he also thought of it. Facing Su Yun's disdain, Zheng Ren smiled, "Forrest Gump, have you seen it?"

"Sure, it's a perfect film. It's a pity to meet the true story of Forrest Gump." Su Yun said, and the topic turned to another unknown direction.

"Forrest Gump's long-distance running, Louis Michael Figueroa, who crossed the United States three times, is one of its prototypes. Well, let's not talk about this. Many people run with Forrest Gump. Don't you think it's strange?" Zheng Ren asked.

"Boss, it's literary and artistic."

"No, I don't think so." Zheng Ren said firmly: "sometimes, strong psychological hints and images of some factors will produce a strange result."

"For example?"

"You're right. The medieval case is more entertaining. Let's say a case in recent decades." Zheng Rendao: "have you seen the fairy treasure dream?"

"Your words have exposed your age." Su Yun said contemptuously.

"I haven't seen it either." Zheng Ren lit a cigarette and took a puff. The smoke was straight without a radian.

"Boss, do you think it's a waste to use the subtle control of turbulence in smoking?" Su Yun asked.

"When you think about a problem, doing it subconsciously is like an operation. The cook is good enough this time." Zheng Ren smiled.

"Let's get down to business. What's the matter with fairy treasure dream?" Su Yun asked.

"At 18:30 on December 16, 1997, Japanese audiences were watching the popular animated fairy baokemeng episode 38 - Computer warrior 3D dragon." Zheng Rendao.

Su Yun is serious this time.

1997, that's not far.

And there was time. The details were days or even minutes.

But why don't you remember it?

"However, at about 18:50, a large number of bright and flashing special effects appeared. Then children began to have symptoms, from shortness of breath, nausea to spasm, hallucinations, etc."

"Within half an hour, more than 600 teenagers were sent to the hospital for treatment, including 208 in coma and 3 in severe coma, most of them primary and secondary school students."

"At that time, these children were diagnosed with" photosensitive epilepsy ", which was caused by the light and shadow effect in the animation." Zheng Ren spoke slowly and seemed to be thinking while talking.

Su Yun immediately caught the loophole in Zheng Ren's words and interrupted him, "wait a minute! There are several problems with what you said."

"I know. Listen to me first. This diagnosis is not very convincing." Zheng Ren laughed. "The incidence rate of photosensitive epilepsy is around 0.02%. The incidence of hundreds of people with epilepsy is smaller than that of meteors."

"Secondly, similar flashing images have been common in animation in the past 20 years. This is an animation technique called Paka Paka. In short, it is to make different colors of light appear alternately and repeatedly to create the tension of the plot."

"Is that what you want to say?" Zheng Ren asked.

Su Yun nodded. Although he didn't care about Zheng Ren's statement, he thought this gossip was too interesting.

He just said what he wanted to do with the goods. Did he think it all out?

It's impossible. It's definitely not some damn group hysteria.