42 results about "Open field" patented technology

The invention discloses a microwave irradiation device suitable for an open field. The device comprises a microwave radiation driving module, an open field platform, a light emitting diode array and amicrowave radiation receiving module, the microwave radiation receiving module is worn on the neck of a target animal, the light emitting diode array is located above the open field platform, the microwave radiation driving module is connected with the light emitting diode array, a driving current can be generated to drive the light emitting diode array to generate visible light, and after the microwave radiation receiving module receives visible light irradiation, a radiation microwave signal component in a visible light spectrum is demodulated and amplified to irradiate the target animal. According to the device, the real-time effect of observation during stimulation is achieved.

The invention discloses an open domain question answering method based on hypothetical semi-supervised learning, including: (1) using information retrieval technology to extract articles related to the question from a corpus; (2) assuming that a given question answering training set comes with The article is the only positive label, and all articles extracted from the corpus are negative labels; (3) Construct a deep learning model, learn the characteristics of positive labels by training an article scorer, and train a reader to select the correct answer from the article ;(4) Perform correlation ranking of articles, send the first n articles with high correlation into the scorer for scoring and re-label according to the scores; (5) Repeat steps 3 and 4 until the model converges; (6) Model training After that, the open domain question answering application is performed. The invention can greatly improve the quality of article extraction and the accuracy of answers in the existing open domain question answering system without relying on additional manual annotation and external knowledge.

The present invention provides a behavior detection device for overall perception, comprising: an open field, which is a box structure with an open top, and the open field is surrounded by a bottom plate and a plurality of side plates connected end to end; a display screen, It is arranged on the top of the open field, the display surface of the display screen faces the bottom plate surface of the open field, and a dynamic approaching image is displayed on the display screen, and the dynamic approaching image includes an image maintaining topological properties and transforming topological properties at least one of the images; the shielding part is arranged on the bottom plate surface of the open field, and the shielding part is provided with a shielding space; the camera part is arranged on the open field for real-time monitoring of the open field Dynamic. The behavior detection device is a subconscious visual stimulus detection device, which can be used to test the influence of subconscious topology perception on animal behavior, and can reflect the correlation between animal behavior and overall attribute perception to a certain extent. The invention also provides a method for testing animal cognitive behavior.

The invention provides an open field test case facilitating repeated tests. The open field test case comprises a case body device and a rotary supporting device. The case body device comprises a case body frame and baffles, sealing plates are fixedly installed on the left face and the right face, opposite to each other, of the case body frame respectively, and the baffles are hinged to three optional faces in the upper face, the lower face, the front face and the rear face of the case body frame respectively. The sealing plates are provided with rotary protrusions which are rotationally installed on the rotary supporting device. The side faces, in the thickness direction, of the baffles are provided with protrusions, and the frame is provided with clamping grooves matched with the protrusions. The open field test case is simple in structure; besides, the open field test case can be used in repeated tests, shortening unnecessary time spent on tests.

The invention discloses a method for analyzing the movement behavior of mice in an open field experiment based on key point detection, comprising: (a) collecting experimental videos and determining the experimental area; (b) a mouse key point detection model based on a convolutional neural network, Detect the nose tip, left ear, right ear and tail root of the mouse in the video image, and return the coordinates of the key points; (c) calculate the movement distance of the key points between adjacent frames, and filter out the abnormal key points with the distance threshold; (d) check the key points The coordinates are cleaned, and the Kalman filter is used to predict the trajectory to eliminate the influence of measurement errors; (e) determine the movement parameters in the mouse open field experiment from the calculated key point coordinates, and generate relevant graphical reports. The method for analyzing the movement behavior of mice in open-field experiments based on key point detection in the present invention has strong robustness, and has strong anti-interference ability against changes in the environment and light, and greatly simplifies the process of analyzing behavioral indicators. Behavioral analysis means are convenient, comprehensive and precise.

The invention discloses Lactobacillus brevis capable of relieving anxiety and improving sleep and its application, belonging to the technical field of microbes. Lactobacillus brevis GDMCC No.60605 of the present invention has excellent ability to simulate gastrointestinal tract survival, cell adhesion and GABA production. In the open field test, it can significantly increase the frequency of mice entering the central area, and prolong the time of mice in the central area of ​​the open field without affecting the total movement distance of mice; in the elevated plus maze test, it can significantly increase the number of mice entering the open arm. times; it can prolong the sleep time induced by pentobarbital sodium and shorten the sleep latency induced by barbital sodium; it can regulate the intestinal flora and significantly increase the relative abundance of Allobaculum in the intestinal tract of mice. The Lactobacillus brevis GDMCC No. 60605 is used to prepare pharmaceutical compositions and fermented foods for relieving anxiety and improving sleep, and has very broad application prospects.

The invention provides a method for evaluating the influence of musical stimulation on weaned piglets, belonging to the field of animal husbandry. The purpose of the present invention is to judge the influence of music on the emotional response of weaned piglets. The invention provides a method for evaluating the influence of musical stimulation on weaned piglets. First, the weaned piglets are treated. One group plays classical music Mozart K.448, and the loudness is positioned at 60-70dB. The noise loudness was 80‑85dB. One group did not perform musical intervention on the piglets, and the sound loudness range was 20‑40dB. The weaned piglets were subjected to an open field test for 5 minutes, followed by a novelty test for 5 minutes, and finally the behavior of all weaned piglets was counted. To explore whether classical music can improve the positive emotions of piglets, and whether environmental background noise has a negative impact on piglets, to provide a theoretical basis for the application of music in production practice to improve animal welfare and health.

The present application is applicable to the technical field of data processing, and in particular relates to an open field experiment data analysis method, system and terminal equipment. The open field experiment data analysis method comprises: obtaining an experiment video containing a target open field, and extracting each video frame corresponding to the experiment video; converting each video frame into a corresponding binary image, and extracting each video frame corresponding to the experiment video; Intercept the area image corresponding to the target open field in the binary image; obtain the first coordinates corresponding to the pixels of the experimental animals in each of the area images, and determine each of the pixels according to the first coordinates corresponding to the pixels. The second coordinates corresponding to the center of mass of the experimental animal in the area image; establish a coordinate system according to the contour boundary of the target open field in the area image, and set the coordinate system in the coordinate system according to the second coordinates corresponding to each of the center of mass The movement track of the experimental animal is drawn to reduce the time cost in the data analysis of the open field experiment and improve the analysis efficiency and accuracy of the data analysis of the open field experiment.

The invention discloses a modeling method for mice suffering from depression and liver depression fire syndrome diseases, and relates to the field of animal model construction methods, the modeling method comprises the following steps: performing continuous sleep deprivation stimulation on healthy mice for 2-30 days, and simultaneously performing light irradiation daily stimulation and next-day grain stimulation every day, the obtained model mouse has symptomatic manifestation of depression, and meanwhile, the characteristic that the model has the syndrome of liver depression transforming into fire is judged through a traditional Chinese medicine syndrome diagnosis method. The depression mouse model established by the invention not only has clinical liver depression transforming into fire and depression states in general signs, but also can be used for treating depression through weight, total distance of open field activities, time, times and average speed of entering the center of the open field, times and time of entering an open arm in an elevated cross labyrinth, water intake and forced swimming immobile time. The model accords with the characteristics of liver depression transforming into fire in traditional Chinese medicine, and can be used for further research on pathogenesis and treatment of the syndrome of liver depression transforming into fire of depression.

The invention relates to a traditional Chinese medicine composition capable of treating depression and a preparation method thereof. The effective components of the medicine are composed of Chinese jujube, Atractylodes macrocephala, dodder, rehmannia glutinosa, tangerine peel and honeysuckle, and the weight ratio of each traditional Chinese medicine is 5-10 in sequence. :5~15:3~5:10~15:5~10:5~15. The traditional Chinese medicine composition can be used for treating depression. The experimental results show that jujube, Atractylodes macrocephala, dodder, rehmannia glutinosa, tangerine peel and honeysuckle are compounded in a certain proportion, which can increase the number of parallel moving grids and upright times of depressed mice in the open field test; increase the number of depression mice. Hedonic behavior index and body weight have good antidepressant effect, significant effect and few side effects; and the raw materials are easy to obtain, and can be made into tablets, capsules and pills by conventional methods, and the preparation method is simple, safe, effective and economical .