32 results about "Olfactory stimulation" patented technology

The invention discloses a system and method for performing cranial nerve stimulation based on olfaction, hearing and synchronous magnetomotive stimulation, and the system comprises a magnetic therapy bearing main body which is a magnetic therapy helmet, serves as a basic bearing structure of the system, and is used for installing all functional assemblies, providing magnetic therapy physical auxiliary stimulation, and achieving the cooperation of magnetic therapy and multi-mode stimulation; the olfactory stimulation subsystem is used for providing olfactory stimulation with precise regulation and control; the auditory stimulation subsystem is used for providing personalized audio stimulation; the magnetomotive stimulation subsystem is used for providing magnetomotive stimulation; the nerve stimulation cooperation subsystem is used for planning multi-mode stimulation as a whole and achieving regulation and control. Through the synergistic effect of olfactory stimulation, auditory stimulation and magnetomotive stimulation, three major neural pathways of olfactory, auditory and somatosensory can be activated at the same time, multi-dimensional nerve resonance is formed, the brain wave synchronization degree is remarkably improved, and the adjuvant therapy effect on Alzheimer's disease, cognitive impairment and other diseases is superior to that of single-mode stimulation.

The invention relates to the technical field of pet foods, in particular to a pet food for improving the palatability of the pet food and a preparation method of the pet food. The invention provides a pet food, which comprises the following raw materials: enzymolysis yolk liquid, enzymolysis yolk powder and goat milk powder, and the raw materials are applied to the pet food, so that feeding stimulation, taste increase and palatability increase can be formed when pets (such as pet dogs) eat the pet food, and further, strong olfactory stimulation is matched with the taste to increase feeding; stable food calling is guaranteed; and the palatability is improved.

The invention discloses a wearable digital olfaction experience device, system and method. The core purpose of the wearable digital olfaction experience device, system and method is to determine that olfaction is a brand-new and high-fidelity digital information medium. The device is positioned as a purely "olfactory display" that includes a nose wearing structure, an olfactory stimulus generating unit, a wireless communication module, and a processing circuit. The core of the olfactory stimulus control device is that the processing circuit adopts pure open-loop control logic and is configured to receive timestamps and parameters defined in an external digital control instruction sequence and drive the olfactory stimulus generation unit to perform high-fidelity micro-dose release strictly according to the timestamps and parameters. An accurate and synchronous olfactory dimension is provided for immersive experience such as VR / AR, a brand-new and private information expression mode is opened up, and a complete technical link from content creation to sharing is constructed around the device.

This invention discloses an olfactory electrostimulation model for automatically generating current stimulation signals for an artificial nose, relating to the technical field of olfactory stimulation signal generation using biomimetic neural networks. The implementation steps include: First, constructing a biomimetic neural network framework. Based on the neuronal anatomical structure of the olfactory epithelium and olfactory bulb system, extracting the main neuron types, and organizing them according to their connection methods in biological systems; Second, using the Hindmarsh-Rose neuron model to model various neurons in the constructed network and simulate their dynamic firing behavior; Subsequently, setting the connection weights between neurons and the interlayer transmission current to realize the computational model of the entire biomimetic neural network; Finally, in the odor encoding and stimulation signal generation stage, the odor detection curve of the electronic nose is used as an external stimulus input to the biomimetic neural network. The network calculates and generates a series of peak signals, which are output as current stimulation signals to the olfactory bulb for stimulation, thereby realizing the olfactory induction function of the artificial nose.

The system according to this embodiment aims to reproduce the sense of smell in a digital space and improve the user experience. [Solution] The system according to the embodiment comprises a generation unit, a supply unit, and a collection unit. The generation unit generates olfactory sensations. The supply unit provides the olfactory sensations generated by the generation unit to the user. The collection unit collects the user's response to the olfactory sensations provided by the supply unit.

A smell simulation system includes an olfactory stimulation system comprising an olfactory stimulation delivery device containing an olfactory stimulator. The olfactory stimulation delivery device is adapted to position the olfactory stimulator on or in proximity to the user so that the olfactory stimulator can provide an electrical stimulus to the user that generates an olfactory effect. A connection system is adapted to connect the olfactory stimulation system to a virtual environment, wherein the olfactory stimulation system provides an olfactory stimulation to the user in response to an interaction with the virtual environment.

The invention relates to the technical field of virtual reality, in particular to a multi-mode environmental animal test system and an olfactory stimulation component thereof, the olfactory stimulation component comprises a first gas channel, the first gas channel comprises an input section, a middle section and an output section which are connected in sequence; the first multi-way valve is arranged between the outlet of the input section and the inlet of the middle section; the second multi-way valve is arranged between the outlet of the middle section and the inlet of the output section; wherein the middle section comprises an air branch pipe and at least one sniffing branch pipe which are arranged in parallel, an inlet of the air branch pipe and an inlet of each sniffing branch pipe are connected to the first multi-way valve, and an outlet of the air branch pipe and an outlet of each sniffing branch pipe are connected to the second multi-way valve; the air branch pipe passes through the first mineral oil storage bottle, and each sniffing branch pipe passes through the sniffing bottle.

The invention provides a sniffing device mounted on a dental diagnosis and treatment chair and a use method, the sniffing device comprises a dental chair, a tool shelf, a spittoon and a mouth lamp, the dental chair is mounted on the ground, a side box for mounting parts is arranged on one side of the dental chair, the tool shelf and the mouth lamp are movably connected to the side box, the spittoon is rotatably connected to the side box, a gas supply mechanism is embedded in the bottom of the side box, and the gas supply mechanism is connected to the bottom of the side box. The air supply mechanism is communicated with a nose mask covering the nose, and the essential oil bottle is connected to the air supply mechanism. According to the sniffing device mounted on the dental diagnosis and treatment chair and the use method, the air supply mechanism is embedded into the bottom of the side box and is directly communicated with the nasal mask, so that an essential oil conveying path is short and closed, airflow interference in a consulting room is avoided, and continuous nasal cavity sniffing stimulation is realized; a motor-piston driven quantitative conveying mode is adopted, so that the flow of the essential oil is stable, and concentration fluctuation is avoided; an elastic movable ring and a screw-thread insert self-locking structure of the clamping mechanism are compatible with essential oil bottles of different specifications, rapid clamping is achieved, and the replacement efficiency is improved.

The invention discloses an emotion recognition, consciousness evaluation and auxiliary rehabilitation method and device based on closed-loop olfactory stimulation, and a medium, and relates to the technical field of neural function diagnosis and artificial intelligence, and the method comprises the steps: obtaining a first face image sequence of a patient under odor stimulation; inputting the first facial image into a facial action unit intensity estimation model, and obtaining a plurality of facial action unit recognition results output by the model online; determining the facial expression change intensity of the patient based on the recognition results of the plurality of facial action units; and under the condition that the facial expression change is lower than a preset threshold value, adjusting the concentration and the type of the odor stimulation in real time based on a preset concentration gradient, and re-collecting the image for evaluation. Through multiple expression intensity results, the consciousness level of the patient is determined, the olfactory consciousness brain network remaining condition is judged, a rehabilitation training scheme is formulated, and longitudinal tracking is implemented. The emotion and consciousness level of the patient can be accurately evaluated in real time, and the method is applied to olfactory stimulation assisted rehabilitation.

This invention discloses an early Parkinson's disease screening method based on olfactory evoked EEG signals. It constructs a dual-channel, cross-dimensional feature fusion framework through multimodal basic feature extraction, cross-channel feature association modeling, and adaptive feature space expansion. Before inputting features into the classification model, the feature vectors are standardized and normalized to eliminate the influence of differences in dimensions and numerical ranges among different features. Finally, an attention weight mechanism is introduced, and the processed feature vectors are input into a pre-trained classification model to output the classification result of early Parkinson's disease risk. This invention also discloses an early Parkinson's disease screening system based on olfactory evoked EEG signals. Through olfactory stimulation paradigms, low-guided cross-dimensional feature fusion dimensionality enhancement, and standardized data processing, this invention constructs a sensitive, objective, and efficient early Parkinson's disease screening model, effectively solving the problems of diagnostic lag, strong subjectivity, and single feature in existing technologies.

The invention relates to a method for identifying an emotion or a group of emotions felt by a subject after olfactory stimulation, from saliva samples of said subject implementing salivary biomarkers signature. In a second aspect, the invention also relates to a method for evaluating the capacity of an olfactory stimulus to provoke in a subject a desired emotion or group of emotions. The invention finally relates to the use of kit in the context of the present invention.

The present application relates to the field of biological research and application, and particularly relates to an olfactory stimulation system. The present application provides an olfactory stimulation system, comprising: a gas odor generating unit and an electronic control unit, the electronic control unit is connected to the gas odor generating unit, the gas odor generating unit is used for generating odor gas for olfactory test; wherein the gas odor generating unit comprises: an air providing part used for providing required preparation gas; an odor generating part comprising a plurality of channels, the odor generating part is used for generating special odor and mixing with the required preparation gas to obtain the odor gas; and an output terminal part used for conveying and adjusting the odor gas. The present application adopts a multi-channel design, can simultaneously convey different odors, and utilizes software synchronous correction and accurate control, has accurate time control, concentration control and continuous stability control.

This invention provides a wearable olfactory stimulation modulation device and method, belonging to the field of wearable intelligent modulation technology. The method includes preprocessing the original signal, removing interference artifacts and environmental noise, extracting effective EEG features, and using a lightweight depression recognition model for inference and calculation to determine the severity of the user's current depressive disorder. Based on the severity of depression, an adaptive adjustment algorithm generates olfactory stimulation control commands, specifying parameters such as odor type and delivery intensity. This invention, employing the aforementioned wearable olfactory stimulation modulation device and method, solves the limitations of existing clinical modulation methods for depressive disorders and the drawbacks of existing olfactory modulation-related devices.

A system and method modify the neural pathways that determine how chemical vapors are perceived and interpreted by the brain. The perception of chemical stimuli is altered by modulating the activity in one or two primary chemosensory pathways: the olfactory and trigeminal systems. By adjusting the relative activity in these pathways, abnormal and unpleasant smell sensations are treated. The system can be used to treat certain parosmias (abnormal smell sensations) and other types of dysosmias by adjusting the ratio of neural activity in the olfactory and trigeminal pathways. For example, patients with impaired olfactory function (decreased olfactory input) often report that "everything smells bad or foul." By adjusting the relative activity in the trigeminal (unpleasant) vs olfactory (pleasant) pathways the unpleasant or foul odor sensation can be treated (e.g., by blocking signals from the trigeminal system or enhancing olfactory stimulation).

The utility model provides an olfactory stimulation device, which belongs to the technical field of medical detection and comprises a gas chamber, a gas supply unit, a smell liquid supply unit and a gas chamber, the atomized smell gas generation unit is arranged in the gas chamber and used for carrying out ultrasonic atomization on the smell liquid in the gas chamber so as to generate atomized smell gas; the input end of the odor gas output unit is connected to the output end of the gas chamber, and the output end of the odor gas output unit is connected to the tested end; and the electronic control unit is electrically connected with the carrier gas supply unit, the atomized odorous gas generation unit and the odorous gas output unit respectively. The device has the beneficial effects that continuous, stable and consistent transmission of odor concentration and flow can be realized by adopting an ultrasonic atomization mode; in addition, due to the fact that the odorous liquid in the air chamber is atomized, the situation that the concentration is affected due to volatilization of the solution in the odorous liquid supply unit is avoided.

A self-verification type child attention monitoring method of the present application constructs a rich plot database according to the plot needs of children and the public needs, then calculates the child attention value according to the interaction data of the child in the interactive plot, and then can combine the difficulty value and the attention threshold to calculate the attention evaluation value, and the attention evaluation value is used as the main basis for evaluating the child attention, and in the evaluation process, the self-verification mechanism is introduced, the next interactive plot with different difficulty values is dynamically selected according to the size of the attention evaluation value of the first interactive plot, and the positive and negative correlation between the change of the attention evaluation value and the change of the difficulty value of the two interactive plots is calculated, different measures are taken based on the positive and negative correlation, if it is positive correlation, a new interactive plot containing olfactory stimulation can be introduced again, and the positive and negative correlation is evaluated again for self-verification, to ensure the reliability and accuracy of the attention monitoring result.

The invention discloses an olfactory stimulation and physiological sensory perception linkage system, and the system comprises an olfactory stimulation device which is used for providing a bromine agent for a subject, precisely controlling the concentration of an olfactory agent, the starting time of olfactory agent stimulation and the ending time of olfactory agent stimulation, and transmitting the information of the bromine agent, the starting time of olfactory agent stimulation and the ending time of olfactory agent stimulation to a data processing device; the multi-modal physiological signal acquisition module device is used for acquiring a multi-dimensional physiological data signal of a subject in real time and transmitting the multi-dimensional physiological data signal to the data processing device; the data processing device is used for recording the multi-dimensional physiological data of the subject and marking the brominating agent information and the starting time and the ending time of olfactory agent stimulation on the time dimension of the multi-dimensional physiological data. The olfactory stimulation and physiological sensory perception linkage system is a novel olfactory stimulation system which has the advantages of precise time control, airflow stability, multi-mode physiological detection and the like.

A method for characterizing an olfactory stimulation, including visual stimulation steps each associated with a theme and first steps of recording physiological variables carried out continuously during a first visual stimulation step, so as to obtain first physiological recordings, each first physiological recording being associated with the theme associated with the first visual stimulation step, a second olfactory stimulation step, a second step of recording values of physiological variables carried out continuously during and after the second olfactory stimulation step to obtain a second physiological recording, a step of comparing the first physiological recordings with the second physiological recording to isolate a first physiological recording close to the second physiological recording, and a step of determining a theme associated with the first physiological recording which is isolated during the comparing step.

The invention belongs to the technical field of olfactory diagnosis devices, and particularly relates to an olfactory function evaluation device and method based on multi-modal physiological signal fusion, and the evaluation device comprises an olfactory stimulation module, a multi-modal physiological signal acquisition module, a synchronous control module and a data processing and analysis module; according to the olfactory function evaluation system, comprehensive evaluation of the olfactory function is achieved by synchronously collecting multi-mode physiological signals such as respiration, heart rate variability, myoelectricity, facial expression and eyeball movement and combining olfactory stimulation. According to the method, the limitation of single-mode evaluation is overcome, the accuracy and objectivity of olfactory function evaluation are improved, and the method has important clinical application value.

The invention discloses a driving fatigue relieving method based on olfactory stimulation and a related device, and the method comprises the steps: collecting an electroencephalogram signal of a driver, and carrying out the filtering processing of the collected electroencephalogram signal; quantizing the driving fatigue degree of the driver according to the filtered electroencephalogram signal; according to the driving fatigue degree of the driver, olfactory stimulation gas is adopted to perform olfactory stimulation on the driver, and the driving fatigue of the driver is relieved. The fatigue state can be intervened in time, the mental state of the driver is effectively improved, and the real-time performance of driving fatigue relieving is improved. Meanwhile, continuous driving tasks of the driver are not affected, active safety of the vehicle is guaranteed, and potential safety hazards caused by fatigue driving are reduced.

The application discloses an olfactory training system for activating a motor-olfactory-hippocampal neural network and application, the system comprises a plurality of different odor sources, the odor source is used for alternating olfactory stimulation to stroke patients, so as to improve the cognitive function and / or olfactory function of the patient. The application firstly discloses that the function connection of the motor-olfactory-cognitive brain area is disordered after stroke, the function of the VIP neuron of the motor cortex (MO) around the infarction is inhibited; the VIP neuron of the MO region dominates the GABA neuron of the dorsal peripeduncular area (DP) through an inhibitory pathway, activating the pathway can remove the inhibition of the glutamatergic pyramidal neuron of the DP, enhance the excitatory input to the hippocampal CA3 region, and restore the olfaction and spatial memory. The application proves that the structured olfactory training can activate the loop, and significantly improve the cognitive function of the stroke patient. The application provides a simple and non-invasive stroke rehabilitation strategy.

The invention discloses a postoperative delirium intervention system and method in combination with a VR technology and total sensory cognitive stimulation, and relates to the technical field of intelligent medical treatment, the system comprises: a data acquisition module for acquiring multi-modal data of a user and generating a first instruction in real time; the man-machine interaction module is used for generating a corresponding full sensory stimulation scheme based on the first instruction, and the full sensory stimulation scheme comprises visual stimulation, auditory stimulation, tactile stimulation, olfactory stimulation and perceptual stimulation; generating a second instruction based on the total sensory stimulation scheme; and the cognitive stimulation module is used for receiving the second instruction, implementing visual stimulation and auditory stimulation by utilizing VR glasses and earphones, implementing tactile stimulation by utilizing a wearable tactile patch component, implementing olfactory stimulation by utilizing a smell generator, implementing perceptual stimulation by utilizing an infrared lamp and an ear vagus nerve stimulation sensing ear clip, and performing postoperative delirium intervention on the user. According to the invention, sensory stimulation is added on the basis of the prior art, feedback is realized by using the implemented sensory stimulation, and a better intervention effect is achieved.

The invention discloses a gastrointestinal stimulation system and method based on olfactory, tactile and magnetic current stimulation, the system comprises a multi-mode stimulation system, the multi-mode stimulation system specifically comprises an olfactory stimulation module, a warm touch stimulation module and a magnetic current stimulation module, the multi-mode stimulation subsystem can output a stimulation signal with adjustable and controllable parameters, and the stimulation signal is used for outputting a stimulation signal with adjustable and controllable parameters. The control signal coordination system acts on the enteric nervous system and the peripheral gastrointestinal system of a subject, and the olfactory stimulation module, the warm touch stimulation module and the magnetic current stimulation module receive instructions of the control signal coordination system and respectively generate gas pulses to the subject, generate slow wave signals or warm thorns to be applied to the subject and generate a controlled magnetic field to act on the subject. Probiotics are activated through magnetic current, pathogenic bacteria are inhibited, intestinal nerve regulation and control are enhanced through smell and touch, the problem that gastrointestinal motility is difficult to synchronize through single stimulation is solved, an exclusive treatment scheme is generated by configuring a file manager, stimulation parameters are dynamically adjusted, physiological differences of different subjects can be adapted, and treatment limitation is avoided.

The application discloses an active respiratory synchronization guiding method based on an olfactory stimulator, which is applied to an olfactory stimulation system, wherein the olfactory stimulation system comprises a respiratory frequency sensor, an olfactory stimulator and a respiratory guiding audio-visual device, the respiratory frequency sensor, respiratory guiding software and a device are simultaneously used to realize the method, and bus communication is used between the devices; aiming at the difference of respiratory frequencies of different testers, a respiratory frequency detection sensor is used, the tester's respiratory frequency is collected before the test, and a guiding frequency is set according to the respiratory frequency; an active respiratory guiding mode is used, through the coordination between the devices, each stimulation can be realized in the time period when the tester inhales under the guidance of the respiratory guiding interface; a special respiratory guiding audio-visual device is designed to realize the communication function with other devices and the guiding interface function; the visual guiding interface can be designed into a breathing guiding picture and an added concentration video to guide the breathing and improve the concentration.

The present invention provides a method for evaluating the olfactory system based on imagination and perception, comprising: adjusting the dominant eye based on overlapping objects A and B so that the user has a similar probability of seeing each object with one eye; transmitting the odor corresponding to object A or object B to the user's nasal cavity (olfactory perception stage) or guiding the user to imagine the corresponding object by displaying a prompt word corresponding to object A or object B on the screen (olfactory imagination stage); after a preset time, cutting off the olfactory stimulus or instructing the user to stop olfactory imagination, and presenting a pattern of objects A and B overlapping to obtain the object currently seen by the user; repeating the triggering a preset number of times to obtain multiple experimental results; and statistically analyzing the obtained multiple experimental results to obtain the priming effect size using binocular rivalry to evaluate the current user's olfactory system. The present invention is mainly based on olfactory imagination and olfactory perception functions, and analyzes two main olfactory function tests.

According to one embodiment, an information processing device includes a first acquisition unit that acquires information that indicates the line of sight of a user, a second acquisition unit that acquires video information for an area of movement for the line of sight of the user, and a control unit that, when information that is to attract the attention of the user is included in the acquired video information but the line of sight indicated by the information acquired by the first acquisition unit is not directed at the information that is to attract the attention of the user, controls the operation of a presentation device that can present olfactory stimulation to the user such that olfactory stimulation is presented to the user from the presentation device.

The application discloses a kind of emotion recognition, consciousness evaluation and auxiliary rehabilitation method, equipment and medium based on closed loop olfactory stimulation, it is related to neural function diagnosis and artificial intelligence technical field, comprising: obtaining the first facial image sequence of patient under the stimulation of smell;First facial image is input into facial action unit intensity estimation model, and the multiple facial action unit recognition results of model output are obtained online;Determine the facial expression change intensity of patient based on multiple facial action unit recognition results;In the case where facial expression change is lower than preset threshold, the concentration and type of smell stimulation are adjusted in real time based on preset concentration gradient, and image is recollected for evaluation.Through multiple expression intensity results, determine the level of consciousness of patient, judge the residual situation of olfactory consciousness brain network, formulate rehabilitation training scheme and implement longitudinal tracking.The application can evaluate the emotion and consciousness level of patient in real time, accurately, and be applied to olfactory stimulation assisted rehabilitation.

The invention relates to an olfactory fingerprint construction and olfactory function evaluation method and device based on a brain-computer interface. The method comprises the following steps: constructing an olfactory stimulation molecule library according to individualized information of a testee; recording background information of the olfactory stimulation source; collecting brain physiological activity signals of the testee through the brain-computer interface cap; performing time-frequency domain analysis on the brain physiological activity signal of the testee, and constructing an olfactory physiological fingerprint according to a micro-state sequence, phase-amplitude coupling strength and high-frequency oscillation power distribution related to olfactory information coding; inputting the olfactory physiological fingerprints into the domain adaptation olfactory function evaluation model, and predicting the current olfactory sensitivity, resolution ability, memory extraction ability and emotional response intensity of the testee. The reaction of the brain to olfactory stimulation is obtained through the brain-computer interface, neural activity modes of an individual under different olfactory stimuli are reflected, and olfactory sensitivity, resolution ability, memory extraction ability and emotional response intensity are evaluated more accurately.

A device or system is provided that provides olfactory stimuli, and includes a piezoelectric vibration device that is used to produce scents corresponding to actions performed in a VR or AR environment, or other application. In some implementations, a user interacts with one or more game elements within a game program being executed by a game engine, and responsive to the interaction, the game engine may communicate a series of commands that cause a piezoelectric device of the device to generate scents to be experienced by the user.