A feedback device for measuring pressure related information, and for providing that information in a way that is useful to the wearer of the device. At least one sensor detects pressure information and transmits at least one pressure information signal to a signal processing subsystem. The signal processing subsystem converts the received pressure information signal into at least one stimulation control signal. The signal processing subsystem then transmits the stimulation control signal to at least one stimulator, which provides stimulation to a wearer of the device reflecting the stimulation control signal received from the signal processing subsystem.

Methods, apparatuses, computer program products, devices and systems are described that carry out detecting user data from an interaction between a user and at least one device-implemented application whose primary function is different from symptom detection; mapping the user data from the interaction between the user and the at least one device-implemented application whose primary function is different from symptom detection to at least one user-health test function set; and selecting at least one user-health test function in response to the at least one user-health test function set.

An apparatus and method for improving functioning of at least a portion of a subject's nervous pathway system includes a garment or device worn or disposed on the subject; and at least one stimulator disposed on, in or within the garment or device capable of providing at least one corrective non-weight stimulus to the subject's nervous pathway system. The kind of nonweight stimulus provided by the stimulator to the subject's nervous pathway system, the amount, degree or intensity of the stimulus provided by the stimulator to the subject's nervous pathway system, and/or the body location of non-weight stimulus provided by the stimulator to the subject's nervous pathway system is determined by a reiterative diagnostic method leading to an optimal response for the treated subject.

A balance testing apparatus for testing balance of a test subject having a stance foot and an excursion foot includes a mat, at least one elongate reference line and an electronic measuring device. The mat has a stance foot orientation guide for receiving the stance foot. The at least one elongate reference line extends radially from the stance foot orientation guide. The electronic measuring device is designed for measuring the distance between the stance foot and the excursion foot when the excursion foot is on or near the reference line. A method of balance testing using the balance testing apparatus includes the steps of: measuring a first predetermined parameter having the stance foot in a first predetermined position; storing the data; repeating the steps with the stance foot in a different predetermined position; and evaluating the data to obtain a balance test protocol score.

A system is disclosed that allows a practitioner to rotate a human subject's head in three-dimensional space using a robotic arm with a head mount attached to one end, while the subject is focused on a visual target.

A method, device, and system for the assessment of the quality of balance and for alerting from an impairment of balance of a subject. The device comprises a plate for receiving the feet of a subject and mounted on a plurality of pressure sensors measuring vertical forces applied to the plate, wherein the method comprises the measurement, by means of the pressure sensors thereof, of vertical forces applied to the plate, at least before and while the subject mounts the device (1) and the calculation, according to the measured values, of parameters that are relevant for the assessment, including at least one parameter relating to at least one slowdown in the rise of the values measured by the pressure sensors thereof, when the subject mounts the device.

Methods, systems, and computer programs are presented for managing motion sickness of a user while the user is wearing a head-mounted device (HMD). One method includes an operation for monitoring the physical characteristics of the user while wearing the HMD that is presenting a virtual reality with multimedia content, where the physical characteristics including motions of the user. The multimedia content includes audio and video for presentation on a display of the HMD. Additionally, the method includes an operation for determining if the user is experiencing motion sickness based on the monitoring of the physical characteristics of the user while the virtual reality is being presented. When the user is experiencing motion sickness, supplemental sound is delivered to the user, where the supplemental sound is combined with sound from the multimedia content for delivery to the user, and the supplemental sound is defined to decrease the motion sickness experienced by the user.

Conventionally, a neuronal controller located inside the central nervous system governing the maintenance of the upright posture of the human body is designed from a control system perspective using proportional-integral-derivative (PID) controllers, wherein human postural sway is modeled either along a sagittal plan or along a frontal plane separately resulting in limited insights on intricacies of a governing neuronal controller. Also, existing neuronal controllers using a reinforcement learning (RL) paradigm are based on complex actor-critic on-policy algorithms. Analyzing human postural sway is critical to detect markers for progression of balance impairments. The present disclosure facilitates modelling the neuronal controller using a simplified RL algorithm, capable of producing postural sway characteristics in both sagittal and frontal plane together. The 0-learning technique of the RL paradigm is employed for learning an optimal state-action value (0-value) function for a tuneable Markov Decision Process (MDP) model.

A head mounted display includes a display unit capable of transparently displaying an outside world. The head mounted display includes a processing unit that displays a moving image on the display unit; and an external sensor that detects movement in the outside world which can be transparently displayed by the display unit. The processing unit acquires the movement in the outside world obtained by the external sensor, synthesizes the acquired movement in the outside world and the moving image to be displayed, and evaluates a biological effect based on the synthesized moving image obtained by the synthesis.

The balance training apparatus includes: a moving cart capable of moving on a moving surface by driving a driving unit; a detection unit configured to detect a load received from a foot of a trainee who is standing on the moving cart; a calculation unit configured to calculate the center of gravity of loads of both feet of the trainee on a riding surface from, the load detected by the detection unit; a setting unit configured to set the center of gravity of the loads at which it is estimated that the trainee has maintained an upright state on the riding surface as a reference center of gravity; and an instruction controller configured to output an instruction of the orientation of the body to the trainee and an instruction to move the center of gravity to the trainee.