Abstract: A method of testing a subject for impairment includes presenting the subject with a display of a smoothly moving object, repeatedly moving over a tracking path and, while presenting the display to the subject, measuring the subject's right eye positions and measuring the subject's left eye positions. The method further includes generating a disconjugacy metric by comparing the measured right eye positions with the measured left eye positions, comparing the disconjugacy metric with a predetermined baseline to determine whether the disconjugacy metric is indicative of an impairment, and generating a report based on the disconjugacy metric.

Abstract: A system and method for testing a subject for cognitive or oculomotor impairment includes presenting the subject with a display of an object, while presenting the display to the subject, and the subject's head moves horizontally or vertically within a predefined range of movement rates, measuring the subject's right eye positions and/or the subject's left eye positions. The system generates a metric by statistical analysis of the measurements of subject's right eye positions or the subject's left eye positions, and generates a report based on the metric. In some embodiments, the system is configured to train the subject to improve their performance, and thereby remediate or reduce cognitive and oculomotor impairment.

Abstract: A method of testing a subject for impairment includes presenting the subject with a display of a smoothly moving object, repeatedly moving over a tracking path and, while presenting the display to the subject, measuring the subject's right eye positions and measuring the subject's left eye positions. The method further includes generating a disconjugacy metric by comparing the measured right eye positions with the measured left eye positions, comparing the disconjugacy metric with a predetermined baseline to determine whether the disconjugacy metric is indicative of an impairment, and generating a report based on the disconjugacy metric.

Abstract: A method of presenting content to a subject based on eye position measurements includes presenting the subject with content. While presenting the content to the subject, one or more of the subject's eye positions is measured, from which a locus of the subject's gaze is determined. The method includes continuously performing the operations of: generating an attention metric using the one or more measured eye positions; based on the attention metric, determining an attention state of the subject; and determining a trajectory of the locus of the subject's gaze. In accordance with detecting a change in the attention state of the subject, the presentation of the content is modified based on the trajectory of the locus of the subject's gaze so as to present different content than if the attention state of the subject had remained the not attending state.

Abstract: A method of presenting content to a subject based on eye position measurements includes presenting the subject with content. While presenting the content to the subject, one or more of the subject's eye positions is measured, from which a locus of the subject's gaze is determined. The method includes continuously performing the operations of: generating an attention metric using the one or more measured eye positions; based on the attention metric, determining an attention state of the subject; and determining a trajectory of the locus of the subject's gaze. In accordance with detecting a change in the attention state of the subject, the presentation of the content is modified based on the trajectory of the locus of the subject's gaze so as to present different content than if the attention state of the subject had remained the not attending state.

Abstract: The relational motion detection system measures relative motion of a head of a subject relative to a torso of a subject. The system includes a first motion detection sensor on a first apparatus configured to be secured to a head of a subject to detect a first motion. It also includes a second motion detection sensor on a second apparatus configured to be secured to the torso of a subject to detect a second motion. The system further includes a control unit configured to obtain information regarding the first motion from the first motion detection sensor and second motion from the second motion detection sensor, wherein the control unit contains instructions for calculating motion of the head relative to the torso of the subject based on the obtained first motion and second motion.

Abstract: A method of presenting content to a subject based on eye position measurements includes presenting the subject with content. While presenting the content to the subject, one or more of the subject's eye positions is measured. The method includes continuously performing the operations of: generating an attention metric using the one or more measured eye positions; based on the attention metric, determining an attention state of the subject; and determining a trajectory of the one or more eye positions. In accordance with detecting a change in the attention state of the subject, the presentation of the content is modified based on the trajectory of the one or more eye positions so as to present different content than if the attention state of the subject had remained the not attending state.

Abstract: A method of presenting content to a subject based on eye position measurements includes presenting the subject with content. While presenting the content to the subject, one or more of the subject's eye positions is measured. The method includes continuously performing the operations of: generating an attention metric using the one or more measured eye positions; based on the attention metric, determining an attention state of the subject; and determining a trajectory of the one or more eye positions. In accordance with detecting a change in the attention state of the subject, the presentation of the content is modified based on the trajectory of the one or more eye positions so as to present different content than if the attention state of the subject had remained the not attending state.

Abstract: A method of presenting content to a subject based on eye position measurements is provided. The method includes presenting the subject with content. While presenting the content to the subject, one or more of the subject's eye positions is measured. The method further includes continuously performing the operations of generating a variability metric using the one or more measured eye positions and comparing the variability metric with a predetermined baseline to determine an attention state of the subject. Upon detection of a change in the attention state, the presentation of the content is modified.

Abstract: A system and method for testing a subject for cognitive or oculomotor impairment includes presenting the subject with a display of an object, while presenting the display to the subject, and the subject's head moves horizontally or vertically within a predefined range of movement rates, measuring the subject's right eye positions and/or the subject's left eye positions. The system generates a metric by statistical analysis of the measurements of subject's right eye positions or the subject's left eye positions, and generates a report based on the metric. In some embodiments, the system is configured to train the subject to improve their performance, and thereby remediate or reduce cognitive and oculomotor impairment.

Abstract: A method of visual cognitive training is performed at a device with a display. The method includes sequentially displaying a plurality of visual stimuli in a first region of a subject's field of view. While sequentially displaying the plurality of visual stimuli, the device moves the first region periodically along a predefined path within the subject's field of view. The device prompts the subject to respond to a task associated with the sequential display of the plurality of visual stimuli. The device receives a response to the task associated with the sequential display of the plurality of visual stimuli and records information corresponding to the subject's response to the task associated with the sequential display of the plurality of visual stimuli.

Abstract: A method of testing a subject for impairment includes presenting the subject with a display of a moving object, repeatedly moving over a tracking path and, while presenting the display to the subject, measuring the subject's measuring the subject's gaze positions. A computer system generates tracking error data corresponding to differences in the measured gaze positions and corresponding positions of the moving object, filters the tracking error data to remove data meeting one or more predefined thresholds so as to generate filtered tracking error data, and generates a representation (e.g., a visual representation) of the filtered tracking error data, the representation indicating frequency and amplitude of anticipatory saccades in subject's visual tracking of the moving object.

Abstract: A method is provided for testing a subject's cognitive performance by testing movements under the subject's voluntary control. The method includes prompting the subject to perform a plurality of iterations of a physical task. The physical task includes a movement of a first body part of the subject's body. For each iteration of the plurality of iterations of the physical task, one or more measurements corresponding to the movement of the first body part are obtained. A nominal path of the first body part is determined based on the measurements obtained from a first subset of the plurality of iterations of the physical task. A variability metric is generated by analyzing a plurality of measurements with respect to the nominal path. The variability metric is compared with a predetermined baseline to categorize the cognitive performance of the subject.

Abstract: A method of presenting content to a subject based on eye position measurements is provided. The method includes presenting the subject with content. While presenting the content to the subject, one or more of the subject's eye positions is measured. The method further includes continuously performing the operations of generating a variability metric using the one or more measured eye positions and comparing the variability metric with a predetermined baseline to determine an attention state of the subject. Upon detection of a change in the attention state, the presentation of the content is modified.

Abstract: A method of visual cognitive training is performed at a device with a display. The method includes sequentially displaying a plurality of visual stimuli in a first region of a subject's field of view. While sequentially displaying the plurality of visual stimuli, the device moves the first region periodically along a predefined path within the subject's field of view. The device prompts the subject to respond to a task associated with the sequential display of the plurality of visual stimuli. The device receives a response to the task associated with the sequential display of the plurality of visual stimuli and records information corresponding to the subject's response to the task associated with the sequential display of the plurality of visual stimuli.

Abstract: A method of testing a subject for impairment includes presenting the subject with a display of a smoothly moving object, repeatedly moving over a tracking path and, while presenting the display to the subject, measuring the subject's right eye positions and measuring the subject's left eye positions. The method further includes generating a disconjugacy metric by comparing the measured right eye positions with the measured left eye positions, comparing the disconjugacy metric with a predetermined baseline to determine whether the disconjugacy metric is indicative of an impairment, and generating a report based on the disconjugacy metric.

Abstract: In an embodiment, a device for reducing brain and cervical spine injury includes a headpiece sufficiently designed to secure to a user's head, the headpiece having a first attachment member; a support harness sufficiently designed to secure to the user's torso, the support harness having a second attachment member; and a telescoping member having a main tube and a series of progressively smaller diameter tubes nested within each other, wherein the smaller diameter tubes are adapted to extend and compress in a linear plane by the intake and outflow of fluid, wherein the telescoping member has a first engaging member for engaging the first attachment member, and wherein the telescoping member has a second engaging member for engaging the second attachment member.

Abstract: The relational motion detection system measures relative motion of a head of a subject relative to a torso of a subject. The system includes a first motion detection sensor on a first apparatus configured to be secured to a head of a subject to detect a first motion. It also includes a second motion detection sensor on a second apparatus configured to be secured to the torso of a subject to detect a second motion. The system further includes a control unit configured to obtain information regarding the first motion from the first motion detection sensor and second motion from the second motion detection sensor, wherein the control unit contains instructions for calculating motion of the head relative to the torso of the subject based on the obtained first motion and second motion.

Abstract: A method of training a subject to improve anticipatory timing includes presenting the subject with multiple sequences of stimuli, receiving sensor signals associated with responses by the subject to the stimuli, and recording response times in accordance with the sensor signals, wherein the recorded response times are associated with the responses by the subject to the multiple sequences of stimuli, and wherein the response times have an associated distribution. The method further includes analyzing the distribution of response times for the subject to determine variability in anticipatory timing of the subject with respect to the stimuli, and generating a subject feedback signal corresponding to a result of the analyzing so as to train the subject to improve anticipatory timing of the subject.

Abstract: The present invention may comprise a helmet worn by a person, with additional elements to dampen, restrain or totally block rotational movement upon the sensing of severe rotational movement of the head. This device prevents serious brain and cervical spine injury by restraining or totally blocking rotational movement of the head in response to severe acceleration/deceleration.