In daily life，Sometimes we have this experience: when some body parts are touched by others, it will cause itching and laughter，And this feeling will be cut a lot when you touch it。This phenomenon is called sensory attenification，It is a adaptation mechanism formed by humans in the process of long -term biological evolution。A sense of attenuation is also considered an important principle in consciousness，Used to potentially adjust various important functions。For example，Feeling attenuation can be used as an intermediary to distinguish the perception stimulus caused by self and external factors，To maximize the damage to the individual from external stimulation。But among some mental disorders (especially patients with schizophrenia)，Due to the lack of sensation attenuation，Individual tendency to think of the behavior that it is issued by others is initiated by others，instead of the correct self -belong to the corresponding behavior，This leads to the emergence of mental symptoms。

　　Bet365 app download Feeling attenuation refers to compared with the sensory results induced by external stimuli，Self-Genelant Action results produced weak nerve reactions，The intensity experience with weakness at the subjective level of the subjective perception。1971，Lawrence Weiskrantz and others research found out，When the main test or the subject is applied to the soles of the soles of the soles of the same strength in the experiment,，There are differences in the degree of itching experienced by the subject。Specifically，Compared with the tactile stimulus applied to the external (that is, the main test)，The degree of itching is lower when the subject applies to the stimulus，Perform sensitivity is worse。other，When I was tested by myself, the hand of the main test was applied to the bottom of the feet.，The itchy experience of the experience is as strong as when the main test is independently applied，But I didn’t feel flat as I do when I was applied。Researchers think，The reason why this phenomenon occurs，It may be because of the existence of the sensation effect。

Feeling attenuation includes attenuation at the perception level perception strength，also includes weakening of the nervous cortex reaction。A degree of attenuation，The subjective perception of the result result of the sensory results caused by the autonomous movement and the feeling of external stimulus results，Quantitative measurement。When a certain action is sent by yourself，Due to the existence of a copy in the nervous system，Individuals can predict the sensory results of its actions。It is this predictive effect that causes the individual's perception strength to be reduced，A sensation attenuation appears。This explains why it feels itching and laughing when others touch some of our body parts，And this feeling will weaken a lot when you touch it。

Force-Matching Task is a classic experimental paradigm that studies the attenuation in the touch channel，The experimental instrument is a force to cause a driver。The force containment is composed of a leverage connected to a torque motor，Torque motor is controlled by computer，The sensor at the end of the leveraged end is used to measure the force that applies the finger of the subject。Experimental requires that the subject to match the first force of the first force on the left -hand finger of the subject。Under the condition of finger (active)，Test the left index finger of the subject to force the force directly to the leverage，Press the right index finger; under the slider (passive) conditions，Test the linear potential of the torque motor to indirectly Bet365 app download applies the finger to the right -hand finger。As a result, I found，The subject of the subject will apply greater force to the right index finger under active conditions。Comparison of comparison，When the individual will indirectly match the linear potential meter，The perception intensity experienced by the subject is accurate。

Later，Some researchers have also found sensation attenuation in the auditory channel，The experimental paradigm is the sensation attenuation of the audit action-effect.。Experimental requirements are more loud and loud。Standard sound is triggered by the subject's active button or presented by the computer，Comparison sound is generated by a computer。Under operating conditions，A standard sound will appear after the active button of the subject，Comparison sounds appear after the random time interval (800-1200ms)。Under observation conditions，Standard sound generates from a computer。The results show，Test that the sound of passive (computer) is more loud than the sound triggered by the active buttons。In other words，Under operating conditions，A sense of attenuation in the test。

　Senior brain scientific research.Patrick Haggard and Ben Whitford believe，Auxiliary Sports Area (SMA) is the main brain structure of the sports system，There is no existence of the auxiliary sports area，Feeling attenuation will not happen。Itzhak Fried and others, and Hargard and others used meridian magnetic stimulation，Destroy the brain activity of the subject of the auxiliary sports area before the movement starts to experiment。Results indicate，Whether the stimulus is caused by self -generation or external objects，Single-Pulse TMS of the Auxiliary Sports Area all destroyed the sensation attenuation。

other，In order to study the hypothesis of the tactile tactile of the body and the cerebellum to regulate the self -generated bet365 best casino games tactile，Sarah-Jayne Blakemore and others use functional magnetic resonance imaging to check the neurological basis for tactile stimulation generated by themselves and external。As a result, I found，Feeling attenuation may be brought back to the cortex adjustment by somatosensory cortex and front buckle，The degree of activation of self -generating tactile stimulus in these areas is lower than the degree of activation of the same stimulation generated by external generation。When an individual experiences a tactile stimulus generated outside，Increases of activities brought back by the secondary somatosensory cortex and front buckle。Comparison of comparison，The cortex of the front cerebellum on the right is selectively activated by the self -lifting movement of tactile stimulation，other，The tactile stimulation generated by the external can also be active。This indicates，The cerebellum is distinguished between the action according to its specific sensory results。When the actual sensory feedback and prediction feedback of the action match，The activity of the cerebellum will be reduced。In other words，One of the functions of the cerebellum is to compare the stimulating expected response with the actual response。If these two reactions match，The cerebellum will start a mechanism to suppress the effect of stimuli，The final result is the weakening of the activity of the somatosensory cortex，Following it is attenuation of the results of self -generating movement。

Comparator Model (Comparator Model) or front -oriented model，is the earliest model used to explain sensation attenuation。The comparator model is used to simulate all aspects of the external world and the sports system，Cause and effect between capturing action and results，The results of the predicted action according to the motion command (Motor Command)。Specifically，The copy of the motion command can predict the feeling of the feeling Bet365 app download of the action behavior of the active action，Then compare this prediction with actual feedback from the action (Actual Sensory Feedback)。Because of the feeling of self -behavioral behavior, it can be correctly predicted on the basis of the movement command (that is, there is almost no difference or difference between prediction feedback and actual sensory feedback)，This accurate prediction can be used to weaken the strength of the sensory results of self -lifelong behavior，Causes sensory attenuation。On the contrary，The feeling of external generation is not related to any copy of the copy，Therefore, it is impossible to predict through the comparator model。

　　Application of sensation attenuation research.In clinical perspective，SUKHI Shergill and others，Self -monitoring of patients with schizophrenia may have dysfunction，The specific manifestation in the defect of sensory prediction，This defect can cause failure of the sensation mechanism of sensory attenuation。and Blackmore、Axel Lindner and others believe that，The defects of patients with schizophrenia in sensory predictions are the causes of psychiatric symptoms such as controlling delusions。other，Studies by Sergill and others also indicate，There is no obvious correlation between the degree of attenuation of the patient and the psychiatric drug (chloroplazine drug)，but individual stability、Features of similar traits。Based on this，We can infer，The failure of the feeling of attenuation mechanism may be used as a physiological representation of identifying schizophrenia disorders。

Future，We can use imaging technology to track the neural mechanism corresponding to predicting defects in clinical treatment，Research on the study of mental patients。At the same time，In the rehabilitation treatment of patients with schizophrenia，Except for the drug therapy and psychotherapy currently bet365 best casino games used，More external intervention in the auxiliary sports area and the cerebellum of patients。We can use acupuncture、Electric stimulation cerebellum and other intervention methods，Make the cerebellum of patients with schizophrenia accurately predicting action results，So the correct attribution of behavior，Make mental symptoms such as controlling delusion and hallucinations improve。

In terms of behavior training，Although it feels attenuation can help individuals highlight the remarkable event of the external world，Enhanced the ability of human detection of external environmental changes，But this ability is limited to the feeling of self -behavioral behavior。In future research，We can feedback through training prediction sensation，Make individuals accurately predict the sensory results caused by external stimuli in some specific situations，The result of the feeling of making self -lifelong behavior and external behavior has the same strength attenuation。Specifically，For specific behaviors，It can improve the accurate prediction rate of individuals through 4 weeks or longer work memory training。In the training of work memory，Individuals will retain the features of information during the repeated information search process，Then know through work memory、Acknowledge，Make this information recognition mode recorded in the mind of the individual。When an individual encounters similar stimuli，You can accurately predict the feeling of action.，This causes sensory attenuation。

other，The rapid development of the current artificial intelligence has profoundly changed the development model of human production lifestyle and society。Brain -like research as an important breakthrough of artificial intelligence from "weak" to "strong" development，It has become the cutting -edge position of scientific and technological development and industrial innovation。In the future, Bet365 lotto review brain -like intelligent robots must be autonomous based on the basis of basic brain cognitive functions，It may need to have a brain area corresponding to the sensory attenuation nerve mechanism，Timely attribution to action，Differential self -life stimulus and external stimulus，This may increase the degree of intelligence of the robot，Forms multi -modal perception and thought -like thinking。

　　(Author Unit: School of Psychology, Northwest Normal University)