Neat classrooms and dormitories, a variety of slogans and billboards, grassy playgrounds, and bright red plastic runways - if there is no thick iron gate at the entrance, it is like an ordinary one. High school. However, at the entry registration office, the old couple of the reporter who met with a bit of sadness and could not find the interview room awoke the true identity of this place: Zhejiang Liangzhu forced isolation of drug addiction.
Last December, it became the first pilot site for a new type of detoxification method, VR (virtual reality) detoxification therapy. In January 2017, this VR detoxification system was passed in Hangzhou by experts from the Chinese Center for Disease Control and Prevention Center, Zhejiang University, Hangzhou Municipal Health and Family Planning Commission, and Anhui Medical University. Clinical trial data show that after more than 60 drug addicts treated for 15 times in 6 virtual reality systems, the ratio of drug cravings decreased by 75%.
Then, after experiencing VR detoxification treatment for drug addicts, after putting on VR glasses, what did you see, what you thought of, and how did you evaluate this system? With this question, the reporter went into a compulsory isolation detox camp. .
Zheng, a drug addict, mentioned that VR detoxification films are very realistic, especially with regard to details.
“The instant the straws were handed over, especially trueâ€
Passing through a green area decorated with a stone chess board, bypassing the playground and the plastic runway, the detox staff led the reporter to the front of the four teaching buildings that lined up to represent the four treatment stages of drug treatment. The staff member said with a slight pride that “our first 445 detoxification model in Zhejiang (the first four represents four stages of detoxification) is well-known throughout the country.â€
In front of one of the teaching buildings, the reporter saw four drug addicts who received VR detoxification therapy. They wear uniform blue costumes. All of them are males from the Hangzhou area of ​​Zhejiang Province. Their age varies from youth to middle age. The time for smoking methamphetamine is also different: there are first time detoxification centers and “four entrancesâ€. Repeated drug addicts.
When asked about the difference between viewing VR detoxification videos and traditional detoxification videos, four drug addicts said one after another that they were immersed in the scene and were “especially realâ€. They specifically mentioned that at the end of the first phase of the film, one close-up shot of a lens was emitting a straw with white smoke. At that moment, their drug addiction was immediately activated and they were desperate to join up. However, at this moment of “inspiringâ€, the film enters the second stage, vividly demonstrating all kinds of evil consequences brought about by drug use, especially health damage. In the presence of some special acting shots, the hearts of all participants were stunned.
The drug addict Zhengmou mentioned that the VR detoxification film was very real, especially in terms of detail. “It describes the yellowing and festering of the teeth of drug addicts. You look at what we have, which tooth is good. "He said that in the past, although it was also vaguely aware that drug use would bring about various negative health consequences, it has not been carefully studied. Through VR film "immersive" to restore, he really experienced "nausea" and fear.
Four drug addicts gave affirmation to the effect of this new type of therapy. "There are certainly certain results. In the future, you will really encounter scenes that may be revisited. You may think about what you see in the movie and hesitate. It's crucial to be hesitant." said Song, a drug addict.
VR detoxification film in the end put it?
In Hangzhou Saiwengsi Technology Co., Ltd., the reporter also experienced a VR detoxification film. Put on VR glasses and attach a data cable to the heart rate measurement device on the wrist. The VR detoxification system will assess the craving for drug addiction by measuring the heart rate variability of the viewer while playing the video, and use it to assess drug addiction. effect.
The film is divided into three phases. In the first stage, the film restored the real scene of drug abuse: there were drug addicts sitting around on the sofa, there were drug abusers lying on the bed, there were drug games while playing computer games, these were drug interviews after actual interviews. Staff, tailor-made scenes based on feedback.
According to He Dalun, director of technology and technology of Saiwonsi, people who do not use drugs will not feel special when they see these clips. Only drug addicts can realize the high degree of detail reduction. The color of the flames, the white smoke effect, the "professional" equipment, and the "professional" technique when using methamphetamine are key factors that make drug users excited. Drug addicts in VR films will make many unclear actions. Those who do not use drugs may feel confused, but they are restoring the true performance of many drug addicts.
The first phase of the drug addiction triggering phase ended with a close-up of the "slowly approaching straw" mentioned by the drug addict to the reporter. Afterwards, the film enters the second stage. VR films show the evil consequences of drug use and are clinically referred to as "disgust treatment." The goal is to enable drug addicts to sense drug-related things and achieve drug abstinence. After the “disgusting†stage of “disgusting treatmentâ€, VR detoxification films ended with a warm “return†stage.
The third stage draws on many common scenes in life: the bird's-eye scent on the West Lake, the children playing in the community gymnasium, and the elderly people watching on the side, the small alleys, the couple playing badminton, and even the street-side breakfast shop A pot of pan fry, home just made a table of food.
Meng Mou said that many testers were deeply impressed by the stimulation of "food." "They said that you are too bad, but also close-up the hot air that emerged after the lid."
To get rid of drug addiction, you must trigger drug addiction
"If it is an addiction, you take a cigarette and shake it in front of him. His cigarette addiction may have been guilty. But the ice is different. First of all, you can't really use ice to stimulate him. Then, the ice is visually salty." Almost," said Wang Yongguang. Unlike heroin, a drug that triggers physiological dependence, ice poisoning triggers psychological dependence. Since the drug addicts are not exposed to psychological stimuli and do not produce drug addiction in the compulsory segregation drug rehabilitation center, it is difficult to assess the effectiveness of drug addiction treatment.
Obtain an objectively quantified “drug thirst†indicator. By observing the change in “drug craving†before and after treatment, we can intuitively assess the therapeutic effect of VR detoxification therapy.
Another key factor is that the VR detoxification film is very "detailed" and strives to restore the temptation that drug addicts may encounter in real life. "It can be said that as long as drug addicts can resist the temptation to live with our VR movies, they can successfully resist the temptation to live in real life," Wang Yongguang said.
Another innovation of the VR detoxification film is the use of VR technology to assist the traditional "disgust treatment" to achieve a better detoxification effect, that is, to allow drug addicts to establish new conditioned reflexes between drugs and nasty negative scenes. However, this "Papluvian style" of "aversion treatment" has an unstable effect. "People and animals are not the same. People can think and have logic. He may not think that it is nasty drugs, but to show him The film people hate," Wang Yongguang said.
The VR anti-drug R&D team took note of a “post-extraction confrontational conditioning method†published by Israel’s research team last year in Nature’s Neuropsychopharmacology, which intervened in unstable memory during the time window of memory consolidation. To achieve the purpose of rewriting or clearing the original memory, and further supplemented by an aversion to treatment, replace the previous link with a new memory. In animal experiments on cocaine craving in rats, the results show that this intervention can successfully replace the old addiction behavior pattern and reduce the thirst for drugs.
"The best thing about people is memory, and the worst thing is memory," Wang Yongguang said. Memory is also the most important for detoxification. This "control method after the extraction of antagonistic conditions" essentially extracts the "beautiful" memory of drugs and immediately corrects them with bad shock memories. The VR anti-drug system awakens drug addiction through the first phase of the film, extracts the memory, and uses the second phase of “disgust treatment†to replace the memory. Finally, it uses the third phase of the intimate film to encourage drug addicts to get rid of drug addiction as soon as possible, return to their families and normal life.
In addition to the forced separation of drug addiction centers in Liangzhu, the VR anti-drug system will also be expanded this year at other detoxification centers in Zhejiang. Later, it will be promoted to the whole province of Zhejiang and will be implemented throughout the country. According to Chen Chen, CEO of Hangzhou Saysing Technology Co., Ltd., while the pilot sample volume continues to accumulate, based on the collected data, the VR detoxification system and its drug addictions will be continuously optimized to evaluate the core algorithm, and this will be regularly announced to the public. Detoxification project progress and results.
He Chen said that VR technology will also make more achievements in areas related to psychology and brain science. In addition to detoxification treatment, Hangzhou Saiwengsi Science and Technology Co., Ltd. has conducted a full range of research in autism, posttraumatic stress disorder (PTSD), stroke and other research directions.
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