Systems and methods are disclosed for assessing the function of parts of one or more sensory fields of a subject. Pupillary responses to at least two clustered ensembles of stimuli presented to predetermined portions of the sensory fields to be tested are measured. Each cluster comprises individual stimuli presented at locations across the sensory field, where the locations are defined on appropriate axes for the tested sensory fields. The method comprises: presenting statistically independent sequences of selected individual stimuli from the two or more clustered stimulus ensembles to a sensory field of a subject, thereby evoking pupillary responses in at least one pupil of the subject; detecting responses of the pupil or pupils evoked by the stimuli using at least one sensor; and processing the detected responses to relate the detected response to the sensory function of each component part of the sensory field. The sensory fields may be, but are not limited to, the visual fields of the two eyes of a subject.

An arrangement and device for determining a state of consciousness of a patient includes an accelerometer or other feedback detection device for detecting movements or other responses of the patient. In addition the arrangement and device includes visual, auditory and physical stimulus generators, and are configured to emit of a visual, auditory and/or physical stimulus for a given time period. In addition a response signal is provided of the patient to the emitted stimulus, where said response signal is recorded using said accelerometer or said feedback detection device. In addition the response of the patient is determined and the patient is labelled as alert (A), responsive to verbal or auditory stimulus (V), responsive to pain or physical stimulus (P) or unconscious patient (U) based on the response.

To determine impairment due to drugs or alcohol, an image capture component captures video of at least a head of a test subject. Cropped head images of the head of the test subject are extracted from sequential images of the video. For each cropped head image, a gaze angle of the test subject is determined from the cropped head image. The determined gaze angles are analyzed to determine horizontal nystagmus and/or angle of onset of nystagmus. A level of impairment of the test subject is determined from the horizontal nystagmus and/or angle of onset of nystagmus. A visual representation of the level of impairment of the test subject is generated on an associated display.

The invention discloses a radio wave transducer for the detection of spinal segmental dysfunction, comprising two radio wave emitters and at least one switch; the two radio wave emitters are electrically connected to the switch; each of the two radio wave emitters has a RLC circuit consisting of a resistor, an inductor and a capacitor, one end of the resistor is electrically connected to one end of the inductance, the other end of the inductance is electrically connected to one end of the capacitor, the other end of the resistor is electrically connected to one end of the switch, the other end of the capacitor is electrically connected to the other end of the switch. This invention also discloses a method for detection of spinal segmental dysfunction.

Electrical stimulation systems and methods for operation of the electrical stimulation system are described. The method includes directing electrical stimulation through the electrodes of the lead and monitoring movements of a hand positioned over an implantation site of an implantable control module of the electrical stimulation system using an accelerometer coupled to a processor of the implantable control module. Another method includes detecting, by a sensor, a plurality of taps of a body region of a patient over an implantation site of the implantable control module, identifying, by the processor of the implantable control module, an indicator, trigger, or marker based on the detected tapping, and performing an activity corresponding to the identified indicator, trigger, or marker.

A neuromuscular sensing method includes transmitting an electrical stimulus from a distal end portion of an elongate stimulator extending within an intracorporeal treatment area of a subject and detecting an artificially induced response of at least two muscles of the subject in response to the transmitted electrical stimulus, each response being detected by a respective sensor in mechanical communication with the muscle. A graphical user interface (GUI) is transitioned from a first state to a second state; the first state indicating to the transmission of a stimulus with no artificially induced response detected, and the second state indicating the detection of the artificially induced response of the at least two muscles, and further identifying one of the at least two muscles as a primary muscle response.

Systems and methods for data compression which facilitate the diagnosis and treatment of neurodevelopmental and neurodegenerative disorders. The methods comprise performing the following operations by a computing device: generating Normalized Data (“ND”) from Original Data (“OD”) that defines a Normalized Waveform (“NW”) that is unitless and scaled from zero to one; processing ND to extract Micro-Movement Data (“MMD”) defining a Micro-Movement Waveform (“MMW”) comprising a plurality of MMD points; and generating compressed data comprising a stochastic signature of MMW. Each MMD point determined based on a value of a peak of NW and a value representing an average of all data point values between a first valley of NW immediately preceding the peak and a second valley of NW immediately following the peak. The stochastic signature is defined by empirically estimated values of at least one parameter representing a Probability Distribution Function (“PDF”) of a continuous family of PDFs.

The present invention relates to an automated method of determining a kinetic state of a person. The method obtains accelerometer data from an accelerometer worn on an extremity of the person and processes the accelerometer data to determine a measure for the kinetic state. The present invention further relates to a device for determining a kinetic state of a person. The device comprises a processor configured to process data obtained from an accelerometer worn on an extremity of the person and to determine from the data a measure for the kinetic state. In the method and system the kinetic state is at least one of bradykinesia, dyskinesia, and hyperkinesia.

Methods and apparatus for monitoring fatigue and notifying an individual are described. The individual may be an operator of a vehicle, equipment, or machine, a student, or other person that may experience fatigue. Motion of the individual is monitored to detect a predescribed motion in response to a stimulus to first determine a base responsiveness profile. Afterwards, a current responsiveness profile is determined based on a prescribed motion in response to a stimulus, and if the current responsiveness profile exceeds a predetermined threshold of the base responsiveness profile, a notification is issued to the individual and, optionally, another person such as an employer, teacher, or parent.

Provided are methods and system for assessing a human subject's neurological and/or psychological status. The methods entail displaying visual tests to a human subject, wherein each of the visual tests includes a visual target signal, optionally with visual cue signals, for eliciting visual and, optionally, body part, movements by the subject. Following the display, the movements are then detected. The latency and/or correctness of such movements can then be used to assess the subject's neurological and/or psychological status. Also provided are methods and systems for assessing performance validity.