220 results about "Visual Stimulations" patented technology

The invention discloses a cognitive disorder nostalgic audio-video intervention therapy method, which comprises the following steps of: building a scene containing nostalgic music art, classical movies and retro original sound, playing matched audio and visual materials to a patient, and guiding the patient to perform structured intervention activities such as puzzle, theme recall or emotion sharing. Therefore, memory is stimulated, cognition is exercised, and emotion expression is promoted; according to the invention, by integrating three layouts of audios of nostalgic music art, classical movies and retro original sounds with matched visual elements, a multi-scene nostalgic sensory environment is constructed, and auditory and visual channels of a patient can be synchronously stimulated; compared with single auditory or visual stimulation, the compound sensory stimulation can more effectively activate a plurality of brain areas related to memory and emotion in the brain, so that long-term memory of deep sleep is more intensively aroused, and the strength and awakening efficiency of reminiscence stimulation are greatly improved.

A vision test can be implemented in a virtual reality (VR) environment using a computer device that includes a head-mounted display (HMD). The computer device can obtain historical vision data of a patient user. Based on the historical vision data, the computer device determines an ordered sequence of vision tests including a first vision test for the patient user. The first vision test is followed by a set of one or more subsequent vision tests of the ordered sequence of vision tests. The computer device executes a user application configured to enable the ordered sequence of vision tests by rendering a user interface on the display. A first visual stimulus of the first vision test is displayed on the user interface. The computer device obtains a user response to the first visual stimulus, and dynamically adjusts one or more subsequent visual stimuli based on the user response.

The invention discloses a method and device for evaluating speech expression ability of neurological and mental diseases. According to the method, speech is induced through a visual stimulation material, speech data are collected, and after speech recognition, semantic calibration and text error correction, evaluation indexes are calculated from multiple dimensions of fluency, microcosmic linguistics and macroscopic linguistics in combination with a natural language processing technology, a large language model and a vector embedding technology, so that the evaluation accuracy is improved. And the result credibility is guaranteed through a robustness verification mechanism of iteration reflection of a double-big language model. According to the method, the problems of large subjective deviation, low efficiency and shallow analysis dimension of traditional evaluation are solved, and objective, accurate, efficient and comprehensive evaluation is realized.

Brain activity can be monitored to facilitate a vision test in a virtual reality (VR) environment using an electronic device that includes a head-mounted display (HMD) and a plurality of electrodes. The electronic device can execute a user application configured to enable a virtual vision test, and generates a VR user interface corresponding to a three-dimensional (3D) virtual environment. The electronic device renders, on the HMD, a user interface including a first visual stimulus corresponding to the virtual vision test. While displaying the visual stimulus, in real time, the electronic device collects a plurality of electrical signals by the plurality of electrodes that contact a head of a user, and determines information of at least one of a second visual stimulus following the first visual stimulus and a user response to the first visual stimulus based on the plurality of electrical signals.

A dichoptic visual stimulus is presented to a user's eyes by presenting a first visual stimulus to a first eye of the user, the first visual stimulus being presented with a first modulation, and presenting a second visual stimulus to a second eye of the user, the second visual stimulus being presented without the first modulation. The first visual stimulus and second visual stimulus are configured to cause the user to perceive the first visual stimulus and the second visual stimulus as a single visual element, and to perceive the visual element as being unmodulated by the first modulation. Neural signals are obtained from a neural signal capture device configured to detect neural activity of the user. In response to determining, based on the neural signals, that the first eye is focused on the first visual stimulus, a computing system executes a command associated with the dichoptic visual stimulus.

The invention belongs to the technical field of mouse neuroscience research, and relates to a multi-modal mouse virtual reality and nerve recording integrated system based on skull anchoring, which comprises a skull anchoring basic support, a binocular miniature VR display module, a multi-modal fixed expansion frame and a behavior and power supply platform. According to the invention, the skull screw is used as a unique space reference, accurate limiting of the head is realized through rapid butt joint of the MMA and the external fixing rod, and rapid plugging and coordinate multiplexing of equipment for two-photon imaging, optical genetic stimulation and the like are realized in combination with an M2 anchoring hole preset in the MMA; the total mass of the whole machine is strictly controlled within 3.2 g; the optical system provides panoramic visual stimulation with a horizontal field angle of 140 degrees, completely covers a key binocular vision area on the top of the mouse head, and supports high-order cognitive task paradigms such as complex ecological visual navigation, spatial memory and social interaction.

The invention provides a virtual reality body rehabilitation system. The virtual reality body rehabilitation system comprises a virtual domain system, a body feeling stimulation system, a body feeling evaluation system, an equipment domain system and a central control module. The virtual domain system specifically induces the sense of ownership, the sense of autonomy and the sense of position by creating a virtual environment of a virtual avatar, real-time action mapping and adaptation rehabilitation tasks; the body feeling stimulation system takes visual stimulation as a core and is matched with linkage of various kinds of sensory stimulation, so that the authenticity of body experience is enhanced; the body feeling evaluation system evaluates real-time body feeling and provides reliable data support for regulation and control. On the basis of the physical cognition theory, the virtual reality technology, the multi-mode sensing technology, the neuroscience and the rehabilitation medicine principle are fused, multi-channel feeling collaborative stimulation such as vision, body feeling and touch feeling is achieved by constructing the immersive virtual environment, a patient is induced to generate physical experience, abnormal body representation is remodeled, nerve plasticity and function recovery are promoted, and the rehabilitation effect of the patient is improved. The patient is helped to return to normal life and society.

A dichoptic visual stimulus is presented to a user's eyes by presenting a first visual stimulus to a first eye of the user, the first visual stimulus being presented with a first modulation, and presenting a second visual stimulus to a second eye of the user, the second visual stimulus being presented without the first modulation. The first visual stimulus and second visual stimulus are configured to cause the user to perceive the first visual stimulus and the second visual stimulus as a single visual element, and to perceive the visual element as being unmodulated by the first modulation. Neural signals are obtained from a neural signal capture device configured to detect neural activity of the user. In response to determining, based on the neural signals, that the first eye is focused on the first visual stimulus, a computing system executes a command associated with the dichoptic visual stimulus.

A method and system for detecting intentional selection of a user interface element using a binocular display. A first visual stimulus is presented stereoscopically to a user's eyes at a first virtual depth perceived by the user's depth perception and overlapping a first position within a field of view of the user. A second visual stimulus is presented stereoscopically to the user's eyes at a second virtual depth perceived by the user's depth perception and overlapping the first position. Neural signals are obtained from a neural signal capture device configured to detect neural activity of the user. In response to determining, based on the neural signals, that the user's eyes are focused on either the first visual stimulus or second visual stimulus, a computing system is placed into a first state or second state, respectively, associated with the first visual stimulus or second visual stimulus, respectively.

The present invention relates to an apparatus (10) for the self-administration of therapies for the treatment of speech disorders comprising a stimulus delivery device (11,12) with a horizontal development substantially curved along an angular portion so as to outline a portion of a circle, comprising at least one panel (11) for the delivery of visual stimuli spatially distributed in an angular range substantially equal to the angular portion of horizontal development of the stimulus delivery device (11,12); at least one acoustic source (12) for the delivery of acoustic stimuli spatially distributed in an angular range substantially equal to the angular portion of horizontal development of the stimulus delivery device (11,12); and a local electronic processing unit configured to control the generation of visual and acoustic stimuli by means of the at least one panel (11) and the at least one acoustic source (12), and characterized in that it comprises at least one first acoustic detector (15) for detecting a reproduction of a verbal element produced by the patient, wherein the at least one first acoustic detector (15) is carried by the at least one panel (11) and positioned so as to detect acoustic signals generated in a space inside the portion of circle outlined by the stimulus delivery device (11,12).

A cognitive assessment and stimulation method and a robotic platform for hippotherapy that comprises a structure comprising at least a high torque servomotor, and an articulated mechanism that simulates the horse's head, at least two load cells placed on the articulated mechanism of the structure, for controlling direction and speed, at least one seat module, that comprises at least one inertial sensor of posture intended to be placed on the patient to determine his / her posture, and one or more load cells placed on the seat to determine the load distribution thereon; and at least two pressure sensors for speed control and that further comprises a temperature control module, which allows temperature control, a visual stimulation sub-module and / or an auditory stimulation sub-module, a crane type module coupled to a harness comprising some stirrups which allow the transfer of the patient and also providing control of weight on the platform and give security to the patient, avoiding the risk of falling.

A virtual vision test can be performed to evaluate response time in detecting subtle visual changes under varying light conditions in a virtual reality (VR) environment. The test can be conducted using an electronic device with a head-mounted display (HMD) and a camera. The device can generate and render a VR user interface in a photorealistic virtual environment, simulating dynamic lighting scenarios. The device can continuously track eye movements in response to visual stimuli presented in these scenarios. The system can then evaluate the detection of subtle visual changes based on the tracked eye movements, and provide a comprehensive assessment of visual acuity and responsiveness under different lighting conditions.

A display system and methods for providing visual stimuli to a user to improve conditions related to amblyopia. The display system comprises a display device configured to provide left and right display elements and a computer unit for providing the visual content to the display device. The computer unit is configured to provide to the left display element left visual content comprising a left base layer and a left stimulation layer and to the right display element right visual content comprising a right base layer and a right stimulation layer. The left stimulation layer and / or the right stimulation layer is / are implemented with one or more mix functions to display a grating image on the display device. The mix functions are configured to exhibit spatial frequency and drift velocity so the grating image of the left stimulation layer and / or the right stimulation layer moves continuously across the display device.

The utility model discloses visual function adjustment training appearance and system relates to ophthalmic optics instrument technical field. A kind of visual function adjustment training appearance, including display panel and light stimulation part, the front of display panel includes the display for output visual stimulation information;The light stimulation part includes the light district at the outer periphery of display panel front, and light district is arranged with light emitting piece to radiate the light of preset wavelength for user visual, and the eyes of the user are illuminated. The utility model improves the adjustment and training effect of visual function by the synergistic effect of visual stimulation information and illumination.

This application provides a scene simulation system, information configuration method, equipment, medium, and measurement system. The scene simulation system includes: a motion device for carrying an object; a display device for displaying images to the object; and a control device communicatively connected to the motion device and the display device, used to control the display device to display animation content and control the motion device to perform coordinated movements to form a linkage for simulating a scene. In each corresponding coordinated action of the linkage, the first peak speed of the motion device occurs later than the second peak speed of the animation content by a preset time. This application innovatively proposes that in scene simulation, by controlling the second peak speed of visual stimulation to precede the first peak speed of corresponding vestibular stimulation by a preset time, it is beneficial to improve the accuracy of the object's sense of direction and enhance the object's experience during scene simulation.

A vision test can be performed based on real-time audio instructions in a virtual environment. An electronic device, such as a head-mounted display, can execute a visual assessment application, including generating a user interface corresponding to a three-dimensional virtual environment. The electronic device can display a plurality of visual stimuli in the user interface, and each visual stimulus can be displayed in duplication with respect to a respective target depth. The electronic device can receive one or more user responses, and each user response can indicate whether a user perceives a corresponding visual stimulus in duplication at the respective target depth. Based on the one or more user responses, the electronic device can determine a depth perception profile of the user, and the depth perception profile can include a plurality of depth perception levels corresponding to a plurality of target depths.

Provided are an optical measurement device, an optical measurement method, a data processing device, and a program, capable of generating data that is a stimulus value that takes into account the time response of an eye and suppresses waveform distortion, capable of performing good flicker measurement, and also capable of coping with a measurement target object having a non-periodic light emission waveform. A stimulus value acquisition unit (20) receives light from a measurement target object to continuously acquire intensities corresponding to stimulus values at constant time intervals; a response characteristic acquisition unit (32) acquires a pulse response characteristic from a storage unit (31) that stores a pulse response characteristic corresponding to a visual stimulus response; and a digital filter processing unit (32) performs digital filter processing on continuous data of the acquired stimulus value intensities using the acquired pulse response characteristic to generate data on which a visual stimulus response is superimposed.

The invention particularly relates to a neural decoding method based on multi-scale electroencephalogram signals and heterogeneous visual stimulation alignment, which comprises the following steps: firstly, performing frequency domain transformation, processing and inverse mapping on original EEG signals through an FADE module to effectively integrate frequency specific information; then, the signals are input into an ACC module, and the module achieves self-adaptive multi-channel relation modeling based on a functional relation instead of a fixed anatomical position through a dynamic clustering center and a cross attention mechanism; then, the encoded EEG features and CLIP visual features are subjected to alignment training under a joint loss function, and the loss function optimizes the semantic fidelity and discrimination of the features at the same time; finally, the EVA frame obtained through training can be used for heterogeneous visual stimulation decoding tasks such as zero-sample image retrieval, video classification and high-quality image reconstruction. According to the method, the capture capability of the EEG features on visual semantic information and the generalization of the model can be effectively improved, and the challenge of multi-scale and multi-modal neural decoding is solved to a certain extent.

Exemplary systems, method and compute-accessible medium can be provided, e.g., for a visual stimulation or an optogenetic activation during a scan of at an object. For example, it is possible to utilize a controller which can be configured to receive signal information regarding the scan, and to precisely control a light engine. The exemplary control of the light engine can be used to activate and deactivate a light source or a plurality of light sources (e.g., one or more at least one light emitting diodes). using the signal information. For example, a digital micromirror device can be utilized through which the light engine is precisely controlled for a full field projection, or patterned projection, wherein the light engine can comprise up to eight high power light sources.

The application relates to a VR device control method based on a visual brain-computer interface. The method comprises the following steps: in response to a panel display request, displaying an input panel in a target area; receiving a first target indication signal sent by a control device; determining a first target visual stimulation area corresponding to a first target visual stimulation coding sequence indicated by the first target indication signal according to the first target visual stimulation coding sequence, and performing a target operation corresponding to the first target visual stimulation area. The method can improve the convenience of user operation in a VR space.

A method for relaxing gaze and / or training attention to peripheral vision, comprising providing visual stimuli 107 simultaneously to the left and right monocular regions of a subject’s peripheral visi

An image display system for displaying fishing data from an electric reel uses a speed detection unit to determine the line speed during reeling and casting, and a current detection unit and a voltage detection unit to detect the system's current and voltage values, respectively. A memory unit stores a speed relationship table and a power relationship table. A coefficient calculation unit inputs the aforementioned values ​​into the speed relationship table and the power relationship table to calculate a line speed coefficient and a power coefficient. Then, a fishing data calculation unit integrates the two coefficients to calculate fishing data, and integrates the calculated fishing data into an image result and displays it on a display device. This allows anglers to intuitively understand the fish's fighting power, increases visual stimulation, and makes fishing more interesting.

System and associated methods of use for rapid assessment of visual field integrity. In one embodiment, the device comprises a frame that rests near a patient's eyes with pinpoint lights or mechanical stimuli that act as visual stimuli mounted at locations within the frame and in the patient's peripheral visual field. A vantage point in front of the frame allows an operator to view the patient's eyes during assessment, enabling the operator to maximize the accuracy during both in person and telemedicine assessments. The lights or mechanical stimuli are positioned such that they are visible to patients with a wide range of interpupillary distances, enabling the use of a single-size device for all patients.

A system comprising an output device, a brain oscillation monitor, and one or more processors. The output device is configured to output an audio signal for audio stimulation of the patient, and a visual pattern for video stimulation of the patient. The brain oscillation monitor is configured to generate feedback indicative of a response to the audio stimulation and the visual stimulation. The one or more processors are configured to determine a target frequency for the audio stimulation and the visual stimulation. The one or more processors are further configured to cause constructive interference of the audio stimulation and the visual stimulation output by the output device at the target frequency, by modifying at least one of a phase of the visual pattern or an amplitude of onsets for the visual pattern, relative to the audio signal, according to the feedback from the brain oscillation monitor.

The invention relates to a method (218), a computer program and a device (110) for determining at least one refractive value (216) of an eye (112) of a person (114), and to an associated method (210) for producing at least one ophthalmic lens (212) for an eye (112) of a person (114). The method (218) comprises the steps of: a) (220) displaying a visual stimulus (120) to an eye (112) of a person (114), where the visual stimulus (120) comprises a plurality of concentric radial lines (126, 126 ',...), where each radial line (126, 126',...) has a different angle value (128, 128 ',...) with respect to a center (130) of the visual stimulus (120); b) (224) recording a response of the person (114) to the visual stimulus (120); and c) (226) determining at least one refractive value (216) of the eye (112) of the person (114) by evaluating the response of the person (114) to the visual stimulus (120), where step a) (220) comprises: each radial line (126, 126 ',...) being projected to the eye (112) of the person (114) at a particular out-of-focus plane, thereby providing a particular diopter to the eye (112) of the person (114), and where the refractive value (216) of the eye (112) of the person (114) is determined by evaluating the response of the person (114) to the visual stimulus (120). Step b) (224) includes recording a response of the person (114) to the visual stimulus (120) indicative of a particular radial line (144) at a particular angle value (146) appearing with a maximum definition (148) to the eye (112) of the person (114).

Aspects of the present disclosure include a method comprising receiving a video stream of a user during an online session, initiating a calibration by providing for presentation on a display a calibration element positioned at a first position on the display, detecting a gaze direction and / or head rotation of the user based on the video stream, determining a mapping between the first position and the gaze direction and / or head rotation, initiating a verification check during the session by providing for presentation on the display a visual stimulus element randomly positioned at a second position on the display, determining a change in the gaze direction and / or head rotation during the verification check, and verifying whether the user is in front of the display by determining whether the user reacted to the visual stimulus element based on the mapping, the change, and the second position. The verification check occurs after the calibration.

This invention discloses a method for monitoring visual stimulus responses based on head movements. The method includes: acquiring image or video data containing head images; inputting the image or video data into a head detection network model for training to obtain a head detection bounding box; inputting the head detection bounding box into a head keypoint localization model for training to obtain the coordinates of head keypoints; and obtaining the direction of the visual stimulus and the visual stimulus response based on the coordinates of the head keypoints. This invention combines a simple test task to apply stimuli to subjects, monitors head movement parameters, and assesses the subjects' cognitive state based on the head movement parameters. By using a deep learning-based head feature point localization and tracking method, it reduces hardware requirements and increases the versatility of visual stimulus response monitoring.

A virtual eye test for evaluating dynamic visual acuity can be conducted in a virtual reality (VR) environment. The test utilizes an electronic device equipped with a head-mounted display (HMD) and a camera. The device generates a VR user interface corresponding to a three-dimensional virtual environment and renders it on the HMD. Real-world motion and target recognition visual tasks are simulated within the VR interface. Using the camera, the device tracks eye movements and response times to visual stimuli presented during these tasks. Dynamic visual acuity is measured based on the tracked eye movements and response times, providing a comprehensive assessment of visual performance in motion-based scenarios.

A virtual eye test for assessing night blindness can be conducted in a virtual reality (VR) environment. The test utilizes an electronic device equipped with a head-mounted display (HMD) and a camera. The device generates a VR user interface corresponding to a three-dimensional virtual environment and renders it on the HMD. A plurality of visual scenarios, each corresponding to a different lighting condition, are simulated within the VR interface. Using the camera, the device tracks user interactions and responses to visual stimuli presented in these various lighting scenarios. Night blindness is measured based on the tracked user interactions and responses, providing a comprehensive assessment of visual performance under different low-light conditions in a controlled, immersive environment.

A non-image-forming visual response-based visual stimulation method and apparatus, a device, and a program product. A visual stimulation signal capable of triggering non-visual light stimulation is respectively applied to the two visual channels of a user in a time-asynchronous manner. Due to a non-image-forming visual response, the visual channel that preferentially senses the stimulation signal enables the stimulation signal to directly stimulate a corresponding sensing channel by means of photosensitive sensing cells, and image content of the stimulation signal can be sensed by the brain only after the stimulation signal is received in the other visual channel. Thus, the non-visual light stimulation generated by the light stimulation signal is time-asynchronous with a visual image stimulation, thereby reducing the mutual influence between the two processes, improving the stimulation effect of the non-visual light stimulation, and enhancing the shaping ability of the non-visual light stimulation with respect to the corresponding sensing channels.