5 results about "Cerebral function" patented technology

A method and apparatus for processing MRI data on changes in local brain function and blood perfusion, the method comprising: (1) collecting T1-weighted imaging, T2-weighted imaging, diffusion-weighted imaging, high-resolution T1-weighted imaging, resting-state fMRI, and 3D-pCASL sequence imaging for each subject on an MRI scanner; (2) processing the resting-state fMRI to obtain the following indicators: local consistency ReHo, low-frequency amplitude ALFF, and low-frequency amplitude fraction fALFF; (3) processing the 3D-pCASL sequence imaging to obtain perfusion indicators in each brain region, including mean cerebral blood flow mCBF, arterial transit time ATT, and arterial cerebral blood volume aCBV; (4) performing statistical analysis between patients and healthy controls on the data obtained in steps (2) and (3), and using correlation analysis to determine the correlation between statistically significant indicators and scale scores.

The application provides an intelligent glasses, which can improve the portability and comfort of the electroencephalogram acquisition device, and realize comprehensive evaluation of the brain function state of the user. The intelligent glasses comprise a glasses frame, a plurality of electroencephalogram acquisition electrodes, a sensory stimulation component and a processor. The glasses frame comprises a glasses frame and a glasses leg. The glasses leg comprises a main body part and a hanging ear part. The main body part is connected with the glasses frame. The hanging ear part is located on the side of the main body part away from the glasses frame and is connected with the main body part. The plurality of electroencephalogram acquisition electrodes, the sensory stimulation component and the processor are arranged on the glasses frame. The plurality of electroencephalogram acquisition electrodes are arranged at intervals and are used for acquiring the electroencephalogram signals of the user. At least one electroencephalogram acquisition electrode is arranged on the hanging ear part. The processor is electrically connected with the plurality of electroencephalogram acquisition electrodes and the sensory stimulation component. The processor is used for controlling the sensory stimulation component to send a sensory stimulation signal according to the electroencephalogram signals acquired by the plurality of electroencephalogram acquisition electrodes. The sensory stimulation signal is used for stimulating the user to change the brain function state of the user.

This invention provides a brain oxygen signal processing method and device based on endogenous low-frequency oscillations, belonging to the field of computer-aided design technology. The method includes: S1, preprocessing and concentration conversion of the original light intensity signal, performing sliding windowing and low-frequency sub-band analysis on the hemoglobin concentration change signal to obtain the low-frequency sub-band signal; S2, extracting the instantaneous phase information and amplitude envelope information of the low-frequency sub-band signal, and determining the amplitude-phase coordination quantity and amplitude envelope coordination quantity; S3, using consistency gating parameters for joint constraints, constructing a low-frequency coupling structure matrix, and generating low-frequency coupling feature parameters; S4, performing quantitative mapping, hierarchical characterization, and confidence output of brain functional states to achieve quantitative characterization of the brain oxygen signal characteristics of the current analysis window. This invention models the coordinated change characteristics of multi-channel brain oxygen signal data in the low-frequency range, determines the coordination and stability of the spatial distribution of brain oxygen signals, and realizes the output of brain oxygen signal feature labels.