5 results about "Frontal lobe" patented technology

The application provides a Chinese spoken language intention recognition brain-computer interface system based on a sound-meaning integration double model, belongs to the technical field of biomedical engineering, and relates to language brain-computer interface technology. Taking sound-meaning integration as the core, the stereotactic intracranial electroencephalogram (sEEG) technology is adopted to collect neural signals of the brain articulatory motor coding area and the semantic concept organization coding area. The system comprises a voice initiation decoder, a speech decoder, a semantic decoder and a Chinese word speech-semantic fusion synthesizer, the target decoder is constructed by extracting high gamma band features of key brain areas of the frontal lobe (left inferior frontal gyrus, premotor cortex, etc.), the temporal lobe (anterior temporal lobe, dorsolateral temporal lobe, etc.). At the same time, a visual and auditory induction training paradigm is matched, three tasks of listening to sound to group words, looking at words to group words and word association are set, and the subjects are supported to generate words independently. The system effectively solves the homonym and near homonym word ambiguity problem in Chinese spoken language recognition, and provides a precise interactive tool for ALS and other speech disorder patients.

A device for relieving dementia symptoms is disclosed. The device for relieving dementia symptoms includes a light stimulation part disposed at a location within a preset radius from an eyeball and frontal lobe of a patient and configured to relieve dementia symptoms of the patient by radiating light having a preset wavelength band to an optic nerve and frontal lobe of the patient, and a central processing unit configured to control an operation of the light stimulation part.

The application provides a tannic acid astringency perception evaluation method based on an EEG technology, and belongs to the technical field of cross of sensory evaluation and neural engineering. The method acquires the EEG signals of subjects under the stimulation of tannic acid with different concentrations through a standardized EEG data acquisition scheme, analyzes the power spectral density (PSD) of the delta band (1-4 Hz), time-frequency analysis and the neural activation characteristics of the frontal lobe region after pretreatment, and realizes the objective evaluation of the astringency intensity of tannic acid. The application solves the problems of large subjective error and non-uniform standard in the traditional tannic acid astringency evaluation, utilizes the high time resolution advantage of the EEG technology, clearly defines the positive correlation between the PSD value of the delta band and the concentration of tannic acid and the role of the frontal lobe as the core perception brain region, and provides an objective and accurate new method for the tannic acid quality evaluation in the food field.

This invention discloses a real-time cognitive load assessment system based on multimodal psychophysiological signals, relating to the field of cognitive load assessment technology. The system includes: an EEG signal acquisition module for acquiring bilateral EEG signals of the subject within a continuous sliding time window, wherein the bilateral EEG signals include at least a first EEG signal from a first brain region and a second EEG signal from a second brain region; a feature extraction module for analyzing a situational feature sequence characterizing bilateral brain activity based on the first and second EEG signals; and a system that constructs situational and synergistic features of bilateral brain activity. The situational features quantify the growth relationship between the left and right hemispheres in the allocation of cognitive resources by analyzing the fluctuation of the ratio of instantaneous power in the bilateral frontal lobes within a specific frequency band. The synergistic features avoid the problem of incomplete representation of the load state by single-dimensional features by analyzing the synchronization degree of instantaneous phase in the bilateral frontal lobes within a specific frequency band.

The present invention relates to the field of transcranial magnetic stimulation (TMS) technology and, more particularly, to a multi-axis TMS positioning apparatus that supports more accurate and consistent positioning of a TMS coil and a positioning system including same. The multi-axis TMS positioning apparatus of the present invention comprises: a band unit formed to fit closely along the head circumference of a wearer; a main frame connected to the band unit in the vertical direction and extending in a curved form from the occipital side of the wearer to the vicinity of the frontal lobe; and a connection unit with one side connected to the main frame and movable in the longitudinal direction of the main frame and the other side configured to allow an applicator including a magnetic generating coil to be coupled thereto.