Methods and systems for monitoring use, determining risk, and pricing insurance policies are provided. In one aspect, a computer-implemented method for generating or adjusting an insurance policy is provided. With an insurance customer's permission, data regarding several factors associated with the customer may be received via wireless communication from their mobile device, vehicle controller, or smart home controller. The data may be related to (i) the customer's home, (ii) an autonomous or semi-autonomous vehicle, and/or (iii) home and vehicle features, maintenance history, and/or repairs performed to each over time. Risk levels may be determined using the data received. Aspects of one or more insurance policies (auto, home, life, etc.) may be adjusted based upon the risk levels. An updated insurance discount may be transmitted to the customer's mobile device via wireless communication for their review and approval. As a result, insurance discounts may be provided to risk averse insurance customers.

The present invention discloses a brain activity analysis method and apparatus, which is based on a nonlinear waveform decomposition technology, wherein the changes of the intrinsic features in brain waves are decomposed and demodulated to extract the modulation signals of the components, including the frequency-modulation signals and the amplitude-modulation signals. The present invention further uses a feature mask to determine whether to proceed further decomposition and demodulation of the extracted modulation signals. If not, the multidimensional changes of the intrinsic features are obtained according to the feature mask. Then, quantitation and identification is performed to obtain the status of brain function. The present invention not only effectively increases the accuracy of the identification but also uses the feature mask to obviously reduce the complexity and the load of computation.

Disclosed are piston actuator devices and their uses for magnetic resonance elastography (MRE).

Example apparatus and methods reduce epileptic seizures in a human patient by non-invasively providing low frequency (e.g., 1-10 Hz) audio stimuli coordinated with low frequency (e.g., 1-10 Hz) visual stimuli to the patient. The signals are provided non-invasively through the eyes and ears. The audio stimuli and visual stimuli may be selected or coordinated based on a state (e.g., hyperexcitability, imminent epileptic seizure, epileptic seizure in progress, REM sleep) determined from an EEG signal acquired from the patient. Apparatus for delivering the audio stimuli and visual stimuli may be incorporated into a single wearable apparatus (e.g., glasses with earphones, hat, headband). The single wearable apparatus may also provide noise cancellation and visual stimulus diminution. The audio stimuli may be incorporated into music or random background noise.

Electrodes for use in electroencephalographic recording, including consciousness and seizure monitoring applications, have novel features that speed, facilitate or enforce proper placement of the electrodes, including aligning tabs and arrowed aligning juts, color coding, and an insulating bridge between reference and ground electrodes which ensures a safe application distance between the conductive regions of the two electrodes in the event of cardiac defibrillation or to prevent shorting between the adjacent electrodes by preventing the conductive path to be shared. A method of using a set of four such electrodes is also disclosed.

An electrode device is disclosed comprising: an elongate, implantable body comprising elastomeric material, a plurality of electrodes positioned along a length of the implantable body; an electrical connection comprising one or more conductive elements extending through the elastomeric material and electrically connecting to the electrodes; and a reinforcement device extending through the elastomeric material. The length of the implantable body is extendible by placing the implantable body under tension. The reinforcement device limits the degree by which the length of the implantable body can extend under tension. At least one of the electrodes can extend circumferentially around a portion of the implantable body. A delivery device and method of delivery for an electrode device is also disclosed.

In an embodiment, a seizure monitor provides intelligent epilepsy seizure detection, monitoring, and alerting for epilepsy patients or people with seizures. In an embodiment, the seizure monitor may be a wearable, non-intrusive, passive monitoring device that does not require any insertion or ingestion into the human body. In an embodiment, the seizure monitor may include several output options for outputting the accelerometer/gyro or other motion sensor data and video data, so that the data may be immediately validated and/or remotely viewed. The device alerts are communicated to the outside care givers via wireless or wired medium. The device may also support recording of accelerometer or other motion sensor data and video data, which can be reviewed later for further analysis and/or diagnosis. The device and invention is also used and applicable for other body motion disorders or detection and diagnostics.

In some aspects, a device wearable by or attached to or implanted within a person includes a sensor configured to detect a signal from the brain of the person and a transducer configured to apply to the brain an acoustic signal.

In some aspects, a device wearable by a person includes a sensor configured to detect a signal from the brain of the person and a transducer configured to apply to the brain an ultrasound signal. The ultrasound signal has a low power density and is substantially non-destructive with respect to tissue when applied to the brain.

In some aspects, a device wearable by a person includes a transducer configured to apply to the brain of the person acoustic signals.