Science and Technology Daily: Can depression be diagnosed by instruments?

        According to the statistics of the Beijing Psychological Crisis Research and Intervention Center, at least one depression patient died suicide every three minutes in China, and 11 people committed suicide. In sharp contrast, the low recognition rate of depression, non-psychiatric specialty The recognition rate of depression for people is only about 20%. Please pay attention – with the development of modern society, people’s life rhythm is getting faster and faster, competition is getting more and more fierce, pressure is getting bigger and bigger, and mental health problems are inevitable, and depression is one of them.
        According to the China Mental Health Association, there are more than 30 million cases of depression in China, but the rate of non-medical treatment was as high as 62.9% Depression can be said to be a familiar and unfamiliar term for modern urban people. Many people feel that they have a tendency to depression, but they do not know whether they have depression or not. The rate of illness recognition is low and the rate of visits is lower.
        Depression spread
        The clinical manifestations of depression are characterized by low mood, lack of interest, and pessimism. On the basis of this low mood, some loss of interest occurs, and some people may have slow thinking, memory loss, loss of appetite, etc. The patient may also have suicidal behavior.
        According to relevant surveys, the incidence of depression in China is about 3%-5%. However, the recognition rate of depression in hospitals above the city level is less than 20%, and there are very few patients who can really receive regular treatment.
        On the one hand, the public lacks knowledge about depression, is unclear about whether they are sick, and lacks the awareness of seeking medical advice. It only thinks that it is “not good mood”, “no big deal”, and the degree of discrimination on depression is low. Do not pay attention to depression. At the beginning of July this year, the World Psychiatric Association and Sohu.com jointly completed the “Do you know depression?” network survey report: 75.94% of people think that they can inhibit the occurrence and development of depression through self-regulation, without the need for professional doctors And the treatment of drugs. When choosing treatment for depression, 45.4% of netizens did not go to the hospital for treatment of depression, 36.81% chose to go to general hospitals, and only 17.79% chose specialist hospitals. This shows that the public lacks sufficient awareness and attention to depression. In fact, as a mental illness, depression has a very negative impact on patients. In the case of suicide in China, up to 70% of people are due to depression.
        On the other hand, the society lacks a correct understanding of depression, and people who have depressive symptoms are mistaken for emotions or “neuropathy”. They cannot give proper understanding and emotional support, and cause greater psychological stress on patients, so that the patient’s condition is further aggravated. In addition, only 2% of patients with depression have been treated. Social prejudice makes patients reluctant to go to the psychiatric department. A large number of patients are not treated promptly, their condition deteriorates, and even the serious consequences of suicide occur.
        Insufficient strength of traditional detection and prevention
        Different from many internal surgical diseases, the etiology and pathogenesis of depression are still unclear, and there are no obvious signs and abnormal laboratory indicators. Generally speaking, the results of biological, psychological and social factors interact.
        Because the cause of depression is not certain, there is no clinical or a series of tests or tests that can be diagnosed. Some scales of symptom evaluation can help doctors to quantify the severity of depressive symptoms, but because of Mainly relying on the patient’s own description, it is difficult to objectively grasp. There is no good clinical means in the prevention, treatment and feedback of mental illness.
        At present, judging whether a person is suffering from depression, usually using a combination of psychological scale and physiological imaging technology, there is a strong subjectivity: first, the tester has subjective judgment when filling in the scale; secondly for the amount There is doubt as to whether the table summarizes its symptoms completely and accurately; again, doctors judge through the scale and physiological imaging techniques that misjudgment is possible. As far as physiological imaging technology is concerned, it can judge the pathologically from depression, but its drawback is that it can not prevent depression, especially for the early stage of mental illness without obvious structural lesions, it can not be judged, and this is precisely The best time to treat.
        It is expected to accurately detect and prevent it
        We know that patients with heart disease can use the Dynamic ECG Recorder, a cassette recorder that is carried around. It can collect the 24-hour whole heartbeat waveform of the tested person, and it is more comprehensive and accurate for the detection and judgment of heart disease. So is there a device of the same type used to detect and prevent depression?
        At the Xiangshan Science Conference on the theme of “Psychological and Physiological Computing Frontier Scientific Issues and Key Technologies”, Bin Hu, Dean of the School of Information Science and Engineering at Lanzhou University, provided a new idea: Online psychiatric diagnosis and treatment based on universal biosensing technology.
        According to Bin Hu, the online diagnosis and treatment system for mental illness is a new technology that is developing in Europe and is booming. It collects the basic conditions of the body through sensors, such as ECG sensors, EEG sensors, motion sensors, etc., and transmits data to the computer in conjunction with psychological scales, speech analysis, sleep analysis, etc. The computer can analyze the data by itself and judge the subject. The mental health situation can also be transmitted to the hospital for diagnosis and treatment by doctors.
        “This is an application of psychophysiological calculations. It requires simultaneous measurement of the physiological and psychological state of the subject. The difficulty lies in accurately measuring the indicators and the relationship with mental illness, that is, how to abstract them into Computational modalities, fusion, and establishment of effective computable reasoning mechanisms are essential for effective analysis of psychological and cognitive phenomena,” Bin Hu said. “In order to use physiological data, measure or express emotional state more comprehensively and accurately, it is necessary to correlate, fuse and analyze various physiological data to improve the reliability and accuracy of mental state description.”
        In the system demonstration, the testee wears the sensor, and can measure various physiological indicators in real time. Combined with the psychological scale test, the computer uses its established model to analyze and process the huge data in a centralized manner, and can immediately feedback the test result. It is faster and more scientific.
        With depression risk prediction system comes, it is an online service system that assists doctors in predicting depression risk. Users can predict the risk of depression through psychological scales and EEG signals, and doctors can also view user information online and provide necessary information. Prevention advice. Hu Bin believes that prevention is more important in terms of detection and treatment. Before the symptoms of depression occur, it is possible to determine whether there is a risk of depression by monitoring the body signals, so as to achieve early detection and early treatment. In this regard, The system may have more application space.
        “For this diagnosis and treatment system, although we have already had initial research and development, it is still far from enough. We need more investment and support in the basic theoretical research and construction of the technology platform. I hope that through more rigorous research work, this diagnosis can be made. The system is applied to the clinic faster!” Hu Bin called.