A method and system for monitoring a user's intoxication including receiving a set of signals, derived from a set of samples collected from the user at a set of time points; providing a sobriety task to the user proximal to a time point of the set of time points; generating a performance dataset characterizing performance of the sobriety task by the user; receiving a supplementary dataset characterizing a demographic profile of the user and/or a physiological state of the user; determining a set of values of an intoxication metric, derived from the set of signals; generating a predicted temporal profile of the intoxication metric for the user based upon the set of values, the set of time points, and the supplementary dataset; generating an analysis of the user's sobriety based upon the performance dataset and the predicted temporal profile; and providing a notification to the user based upon the analysis.

A device, system, and method for operating a nystagmus testing device is disclosed. The device comprising a camera configured to face a test subject to capture eye movements of the test subject, a start button configured to start a nystagmus routine, a front display positioned to face the test subject configured to display a visual stimulus, a rear display positioned to face a test administrator configured to display a visual tracker, and a controller configured to control movements of the visual stimulus and the visual tracker on the front and rear display, respectively, and generate data of the nystagmus routine.

Described herein is a police assistance device with an adjustable height that can be used in police operations that need evidence gathering including administering a horizontal gaze nystagmus field sobriety test. The device can include, among other things, a display, microphone, speakers, and a camera Also described herein are methods for administering a horizontal gaze nystagmus field sobriety test and dealing with suicide attempters using a police assistance device. The device can utilize weapons detection and deterrent systems.

In one or more embodiments, one or more systems, one or more methods, and/or one or more processes may: if historical biometric data associated with a user is available is not available, collect the historical biometric data; if the historical biometric data is available, retrieve the historical biometric data; execute an application; display at least a portion of a graphic; determine that a gaze of the user includes the at least the portion of the graphic; determine a stress index threshold associated with the user; determine a stress index associated with the user, accounting for the at least the portion of the graphic exceeding the brightness threshold; determine that the stress index has reached or exceeded the stress index threshold; provide a notification indicating that the first stress index has reached or exceeded the stress index threshold; and reduce one or more stress inducing attributes associated with the application.

An eye movement analysis system includes an image-capturing unit configured to capture a moving image including at least one of a right eye and a left eye of a subject and a comparison target on a surface of a face of the subject, and an analysis unit configured to analyze a movement of an eyeball of the at least one of the right eye and the left eye of the subject, based on a relationship between the at least one of the right eye and the left eye of the subject and the comparison target on the moving image captured by the image-capturing unit.

There is provided a VR-based portable nystagmus test apparatus that provides both a three-dimensional stereoscopic image and a voice to a subject such that efficiency and accuracy of a follow-up examination can be enhanced. The VR-based portable nystagmus test apparatus can enhance the accuracy and efficiency of an examination by inducing the subject to make a correct motion, during the examination on the subject who wears the VR-based portable nystagmus test apparatus.

A method and system for monitoring a user's intoxication including receiving a set of signals, derived from a set of samples collected from the user at a set of time points; providing a sobriety task to the user proximal to a time point of the set of time points; generating a performance dataset characterizing performance of the sobriety task by the user; receiving a supplementary dataset characterizing a demographic profile of the user and/or a physiological state of the user; determining a set of values of an intoxication metric, derived from the set of signals; generating a predicted temporal profile of the intoxication metric for the user based upon the set of values, the set of time points, and the supplementary dataset; generating an analysis of the user's sobriety based upon the performance dataset and the predicted temporal profile; and providing a notification to the user based upon the analysis.

Systems and techniques that facilitate background monitoring of eye health are provided. In various embodiments, a system can comprise a sensor component of a device. In various aspects, the sensor component can detect one or more physical characteristics associated with an entity. In various embodiments, the system can further comprise a diagnostic component of the device. In various instances, the diagnostic component can estimate in a background of the device a health condition of an eye of the entity based on the one or more physical characteristics. In various cases, estimating the health condition in the background of the device can facilitate real-time monitoring of the eye health of the entity without interrupting the entity's normal use of the device.

A portable nystagmus examination device includes: a main body which is provided in the form of goggles and comes into contact with the face of a subject so that the visual field of the subject is blocked from the outside; a camera unit which is provided on the inner side of the main body and captures eyeball image information on the subject; a monitor unit which is provided on the outer side of the main body and displays, to a user, the eyeball image information on the subject captured through the camera unit; and a control unit which is provided in the main body, collects the eyeball image information on the subject captured by the camera unit, and controls the monitor unit to output the eyeball image information. Thus, the user can perform the nystagmus examination regardless of a place.

Devices for determining the likelihood that a user of a primary monitoring device (“PMD”) has developed a medical condition, generally comprising sensors coupled to the PMD, wherein the PMD detects changes to sensor readings over time, and wherein the changes indicate a change in the likelihood that a user of the PMD has developed a medical condition. In some embodiments, motion sensors are operably coupled to the PMD, and the PMD monitors and saves data relating to characteristics of motion detected, which are used to determine whether there has been a change in a likelihood that a user is undergoing a medical event. In further embodiments, the PMD comprises cameras, and the PMD monitors and saves data relating to movement of a user's eyes, which is utilized to determine whether there has been a change to a likelihood that the user is currently undergoing a medical event.