106 results about "Skin conductance" patented technology

Described herein are methods, devices, and microprocessors useful for predicting a hypoglycemic event in a subject. The hypoglycemic predictive approach described herein utilizes information obtained from a data stream, e.g., frequently obtained glucose values (current and/or predicted), body temperature, and/or skin conductance, to predict incipient hypoglycemic events and to alert the user.

The present invention relates to a system and method for implementing an assistive emotional companion for a user, wherein the system is designed for capturing emotional as well as performance feedback of a participant participating in an interactive session either with a system or with a presenter participant and utilizing such feedback to adaptively customize subsequent parts of the interactive session in an iterative manner. The interactive presentation can either be a live person talking and/or presenting in person, or a streaming video in an interactive chat session, and an interactive session can be a video gaming activity, an interactive simulation, an entertainment software, an adaptive education training system, or the like. The physiological responses measured will be a combination of facial expression analysis, and voice expression analysis. Optionally, other signals such as camera based heart rate and/or touch based skin conductance may be included in certain embodiments.

The present invention relates to a mental balance or imbalance estimation system (100) and method for estimating a level of mental balance or imbalance of a user (1). The system comprises a skin conductance sensor (20) for sensing the skin conductance of the user (1), the skin conductance over time forming a skin conductance trace (22). The system further comprises a processing unit (10) for receiving and processing the skin conductance trace (22), the processing unit configured to determine at least one stimulus response (24) in the skin conductance trace (22), to determine an estimated cortisol level trace (28) of the user (1) based on the determined at least one stimulus response (24), and to determine the estimated level of mental balance or imbalance of the user (1) based on the estimated cortisol level trace (28).

A method and apparatus for measuring the biological condition of an animal by acquiring and analyzing its biological signals are provided. The biological signals from skin temperature, a photoplenthysmogram (PPG), an electrocardiogram (ECG), electrodermal activity (EDA), an electromyogram (EMG), and an electrogastrogram (EGG) are detected using a biological signal detection unit which is attached to the animal's skin. Feature vectors, including the mean heart rate of the photoplenthysmogram and its standard deviation, the very low frequency, low frequency, and high frequency components of heart rate variability, the frequency and mean amplitude of skin conductance responses, and the mean and maximum skin temperatures, are extracted from the detected biological signals. The biological condition, including needs and emotions, of the animal as to whether or not the animal feels hunger or fear, how much the animal is stressed, or whether or not the animal needs to have a bowel movement, is determined using a pattern classifier which has learned reference vectors, which reflect the behaviors, needs, and emotions of different kinds of animals for various biological conditions and are stored in a predetermined database. Therefore, the biological condition of the animal can be determined through instrumental communication, not through human languages, and the breeding of pets can be efficiently managed.

Systems and methods for electrophysiological detection and measurement of intuition are disclosed. In one embodiment, one or more electrophysiological properties of one or more individuals are monitored and used as an indication of a future event. In one embodiment, the electrophysiological property may include heart rate variability, brain wave activity, respiration pattern, skin conductance level, etc. In another embodiment, a signal averaging technique is used to generate a waveform that may be used as an indicator of future events.

The invention provides a convenient and non-invasive means to prepare cells, tissues, and organs for electrical transmission and reception. In an embodiment of the invention, a control method comprises the use of at least one skin electrode, as a reference electrode, and an electrical sensor to measure periodically or continuously the skin's electrical conductance at the site of preparation. The dynamic change in the conductance through the skin is measured while the ultrasound is applied. Signal processing is performed on the measurement and the level of skin impedance change is controlled by performing a mathematical analysis and using the results of such analysis to control the application of ultrasonic energy. A desired level of skin impedance can be set at a predetermined value or based on a chosen level of skin integrity, subject's sensation of discomfort, or duration of the ultrasound application.

Mental state information is collected from an individual through video capture or capture of sensor information. The sensor information can be of electrodermal activity, accelerometer readings, skin temperature, or other characteristics. The mental state information may be collected over a period of time and analyzed to determine a mood of the individual. An individual may share their mental state information across a social network. The individual may be asked to elect whether to share their mental state information before it is shared.

The present invention discloses a horizontal perspective workstation comprising at least two display surfaces, one being substantially horizontal for displaying 3D horizontal perspective images, and one being substantially vertical for text or conventional images such as 2D images, or central perspective images. The horizontal display surface is typically positioned directly in front of the user, and at a height of about a desktop surface so that the user can have about a 45° angle looking. The vertical display surface is also positioned in front of the user and preferably behind and above the horizontal display surface. The present invention prefers a stereoscopic polarized horizontal perspective display, together with a polarized vertical display, thus the two images of the stereoscopic horizontal perspective display are mutually exclusive so that each image can be seen by the only corresponding eye, and the image of the vertical display is halfway polarized to be seen by both eyes. The horizontal perspective workstation can further comprise a binaural or 3D audio system to provide realistic sound simulation. The horizontal perspective workstation can also comprise various biofeedback devices such as brain wave, blood pressure, heart beat, respiration, perspiration, skin conductance, body temperature, muscle tension measurements and simulators for inputs and output with the users.

The present invention discloses a horizontal perspective workstation comprising at least two display surfaces, one being substantially horizontal for displaying 3D horizontal perspective images, and one being substantially vertical for text or conventional images such as 2D images, or central perspective images. The horizontal display surface is typically positioned directly in front of the user, and at a height of about a desktop surface so that the user can have about a 45° angle looking. The vertical display surface is also positioned in front of the user and preferably behind and above the horizontal display surface. The present invention prefers a stereoscopic polarized horizontal perspective display, together with a polarized vertical display, thus the two images of the stereoscopic horizontal perspective display are mutually exclusive so that each image can be seen by the only corresponding eye, and the image of the vertical display is halfway polarized to be seen by both eyes.

The horizontal perspective workstation can further comprise a binaural or 3D audio system to provide realistic sound simulation. The horizontal perspective workstation can also comprise various biofeedback devices such as brain wave, blood pressure, heart beat, respiration, perspiration, skin conductance, body temperature, muscle tension measurements and simulators for inputs and output with the users.

The present invention relates to a wearable device for determining electro-dermal activity of a subject (1). The device (10) comprises a light source (11) for emitting light including infrared light in the wavelength range between 750 and 950 nm into tissue of the subject, a light sensor (12) for receiving at least part of the emitted light after an interaction of the emitted light with the tissue, an evaluation unit (13) for determining the electro-dermal activity from the received light, and a support (14) for carrying the light source (11), the light sensor (12) and the evaluation unit (13), wherein the light source and the light sensor are arranged at a predetermined distance from each other.

A multi-modal physiological assessment device and method enables the simultaneous recording and then subsequent analysis of multiple data streams of biological signal measurements to assess the health and function of the brain. The multi-modal assessment system includes at least one channel of EEG brainwave data in combination with cognitive information that provide a two-dimensional data stream of (x(t), y(t)) of cognitive information; voice recordings; motion, position, and stability data; galvanic skin conductance; temperature of the subject; pulse-oximetry data, cerebral blood perfusion data, vaso-motor reactivity data, and the like. The collected data is processed to construct candidate features extracted from multiple biological sensor data streams and correlated with multi-modal signatures to identify data indicative of brain health, disease and injury.

A sleep quality management apparatus includes a sensor module and a processing unit. The sensor module is configured to provide a heart rate signal and a skin conductance signal. The processing unit is coupled to the sensor module. The processing unit is configured to determine a sleep stage and a stress level according to the heart rate signal and the skin conductance signal so as to identify a stressful dream occurrence. The stressful dream occurrence is identified when the sleep stage corresponds to a rapid eye movement (REM) stage and the stress level corresponds to a stressful state.

Handheld devices using an array of stainless steel electrodes located on an edge and/or back of the handheld devices for acquiring electrodermal activity are provided. The stainless steel electrode array may allow for the skin conductance level (SCL) or skin conductance response (SCR) on an individual to be measured and collected. The skin conductance signal may be related to sympathetic nervous system activity which is a major component of human emotion, known as arousal, or emotional intensity such as anxiety, stress, fear, or excited, etc.

The present invention relates to a device (10) for detecting a circadian phase shift of a user (48). The device comprises: an interface for obtaining a skin conductance signal of the user (48) and sleep cycle information of the user (48); a processing unit (14) for determining an internal clock wake-up time based on the obtained skin conductance signal (20) and an external clock wake-up time based on the obtained sleep cycle information; and an evaluation unit (16) for evaluating a circadian phase shift of the user (48) based on the internal clock wake-up time and the external clock wake-up time. The present invention further relates to a corresponding method as well as to a wearable system (22) for monitoring a circadian phase shift of a user (48).