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54 results about "Brain activation" patented technology

A fabric tactile sensation quantitative evaluation and recognition system based on a multi-mode brain-computer interface

PendingCN109767088AAchieve comfortEnables quantitative evaluation of tactile textures such as smoothnessInput/output for user-computer interactionCharacter and pattern recognitionHuman bodyBrain computer interfacing
The invention discloses a fabric tactile sensation quantitative evaluation and recognition system based on a multi-mode brain-computer interface, and relates to the technical field of fabric evaluation. The system comprises an electroencephalogram collecting cap, a near-infrared brain function imager, a sample table, a processing module and a display module. The invention discloses a fabric tactile sensation quantitative evaluation and recognition system based on the multi-mode brain-computer interface, by which the touch sensation texture electroencephalogram signals and the blood oxygen concentration when a human body touches the fabric can be acquired in real time; the processing module is used for analyzing and extracting characteristic parameters and obtaining the brain activation degree, the characteristic parameters and the brain activation degree are combined, the quantitative evaluation of touch sensation such as fabric comfort and smoothness is achieved, and the recognition of the fabric is completed by comparing and classifying the touch sensation with electroencephalogram characteristic parameters of different fabrics. The evaluation and recognition system can reflect the real tactile sensation reflection of the brain of the human body, objectively achieves the quantitative evaluation of the tactile sensation of the fabric by people, improves the accuracy and objectivity of evaluation, and reduces the number of processing channels.
Owner:CHINA UNIV OF MINING & TECH

Compound brain activation and comfort capsule and quality control method thereof

The invention relates to a traditional Chinese medicine preparation, in particular to a compound brain activation and comfort capsule and a quality control method thereof. The method comprises one of the following steps or some of the following steps: (1) ginseng authentication, (2) medlar authentication, (3) Salvia miltiorrhiza authentication, (4) total nitrogen content measurement, (5) amino nitrogen content measurement and (6) shizandra berry content measurement. In the Salvia miltiorrhiza authentication process, positions on a chromatogram of a tested sample, which correspond to the positions on a chromatogram of a contrast sample show spots with same colors; in the total nitrogen content measurement process, the nitrogen (N) content of each capsule is no less than 15 mg; in the amino nitrogen content measurement process, the amino nitrogen content of each capsule is no less than 1.0 mg; and in the shizandra berry content measurement process, the shizandra berry content counted as shizandra berry schizandrin (C24H32O7) of each capsule is not less than 30 microgrammes. The quality control method has more quality control items so as to better control the quality of the product and effectively supervise the production, is beneficial to the supervision of the quality of the product and ensure the stability of the quality of the product and the safety of patients taking medicine.
Owner:吉林省辉南长龙生化药业股份有限公司

Graph model-based brain function registration method

The invention discloses a brain function registration method based on a graph model, and the method comprises the following steps: mapping high-dimensional brain function image data to a two-dimensional time sequence matrix by taking a brain function activity signal of a subject in a specific cognitive function state as input and taking a brain graph model as a basis; constructing a graph convolutional neural network model to distinguish different cognitive function states, and utilizing a meta analysis method to generate a brain activation distribution prior graph to assist in predicting a brain function activation mode of each subject specificity; combining the two sides to map brain function image data of each subject to a shared representation space suitable for a large-scale group, and finally achieving the accurate brain function alignment between individuals. According to the method, the effect dose of statistical test on a group can be enhanced, the number of tested samples required in brain cognitive function research is reduced, the clinical research cost is saved, and meanwhile, the graph representation information generated in the shared representation space can also be used for accurately predicting the tested brain function state and behavioral indexes.
Owner:ZHEJIANG LAB

Methods and apparatus for electromagnetic source imaging using deep neural networks

Disclosed herein are methods and apparatus for the imaging of brain electrical activity from electromagnetic measurements, using deep learning neural networks where a simulation process is designed to model realistic brain activation and electromagnetic signals to train generalizable neural networks and a residual convolutional neural network and / or a recurrent neural network is trained using the simulated data, capable of estimating source distributions from electromagnetic measurements, and their temporal dynamics over time, for pathological signals in diseased brains, such as interictal activity and ictal signals, and physiological brain signals such as evoked brain responses and spontaneous brain activity.
Owner:CARNEGIE MELLON UNIV

Rehabilitation monitoring system and method based on near-infrared brain imaging

The invention discloses a rehabilitation monitoring system and method based on near-infrared brain imaging, and the system comprises a near-infrared brain imaging collection module which is used for collecting a brain blood oxygen signal, analyzing an activation region of the cerebral cortex of a trainee, and monitoring the motion characteristics of muscle groups in a motion region of the cerebral cortex; the near-infrared peripheral nerve monitoring module is used for distinguishing nerves of each link and monitoring the activity of peripheral nerves of the nerves of each link; the muscle activity detection module is used for judging the activity degree of the muscle according to the blood oxygen content of the muscle; and the data processing and analyzing module is used for summarizing and analyzing the data, identifying weak muscle groups of the spine and monitoring the motion state of core muscle groups in real time. The brain function imaging dynamic spectrum during movement is combined, cerebral cortex activity information characteristics corresponding to movement are refined, muscle group activity is accurately monitored and evaluated, a specific cerebral cortex area is monitored so as to evaluate the brain activation degree, the muscle activation degree, the muscle fatigue degree and the like, and real-time monitoring of rehabilitation training is achieved.
Owner:SHANGHAI TONGJI HOSPITAL

Rehabilitation training feedback method and system based on near-infrared brain imaging

PendingCN114869232AStrengthen targeted trainingReal-time monitoring of exercise postureDiagnostics using spectroscopySensorsFunctional imagingCerebral cortex
The invention discloses a rehabilitation training feedback method and system based on near-infrared brain imaging, and the method comprises the following steps: S1, obtaining a brain blood oxygen signal from a near-infrared spectrum image, analyzing an activation region of the cerebral cortex of a trainee, monitoring the brain region activation level and muscle activation degree in a motion state, and obtaining a brain blood oxygen signal; outputting near infrared data; s2, setting target training data, receiving near-infrared data output by the near-infrared brain imaging acquisition module, comparing the near-infrared data with the target training data, analyzing action differences of trainees, outputting comparison data, and judging whether the comparison data and the target training data are fitted or not; and S3, when the comparison data and the target training data are fitted, outputting a voice or vibration prompt. Therefore, according to the rehabilitation training monitoring feedback system based on the near-infrared brain function imaging system, the near-infrared brain function imaging system is used for evaluating the brain activation degree, the muscle activation degree and the muscle fatigue degree and conducting motion feedback and posture correction on the trainee, and the rehabilitation training monitoring feedback system can be used for assisting the trainee in completing rehabilitation training with high quality.
Owner:SHANGHAI TONGJI HOSPITAL
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