108 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.

A washable, wearable biosensor that can gather sensor data, communicate the sensed data by wireless protocols, and permits the analysis of sensed data in real-time as a person goes about their normal lifestyle activities. The biosensor can be worn in multiple positions, can be put on or removed quickly without having to apply or remove gels and adhesives, and provides a snug, comfortable fit to gather data with minimal motion artifacts. The textile, wearable device can support integrated photoplethysmography, skin conductance, motion, and temperature sensors in a small wearable package. The supported sensors may be coupled to utilization devices by channel-sharing wireless protocols to enable the transmission of data from multiple users and multiple sensors (e.g. both sides of body, wrists or hands and feet, or multiple people). An on-board processor, or the receiving utilization device, can map patterns of the physiological and motion data to signals or alerts such as a likely seizure, drug craving, or other states that the wearer may exhibit or experience. The sensor data may be sent by wireless transmission and received by a mobile phone or other personal digital device, a computer, a favorite toy, or another wearable device. The sensors may include multiple photoplethysmographs and / or one or more EDAs which perform a time-domain measurement of skin conductance.

Devices and methods are disclosed that treat a medical condition, such as migraine headache, by electrically stimulating a nerve noninvasively, which may be a vagus nerve situated within a patient's neck. Preferred embodiments allow a patient to self-treat his or her condition. Disclosed methods assure that the device is being positioned correctly on the neck and that the amplitude and other parameters of the stimulation actually stimulate the vagus nerve with a therapeutic waveform. Those methods comprise measuring properties of the patient's larynx, pupil diameters, blood flow within an eye, electrodermal activity and / or heart rate variability.

The invention relates to sweat activity measurement, e.g. for determining a physiological state of a subject, embodied by a method as well as a kit with an immittance measuring circuit and electrodes with contact electrolyte. Sweat activity is considered a transport phenomenon and can be defined as a flux, e.g. gram water per skin area per second. Prior art methods determining water absorbed per gram dry stratum corneum measures skin moisture and do not truly reflect sweat activity. A periodic signal with frequency of 60 Hz or lower is applied to reduce contribution from complex admittance of the skin, and skin conductance is measured as a degree of sweat activity. The contact electrolyte allows filling of sweat ducts with sweat from sweat glands, this may be characterized in that it does not substantially fill the sweat ducts when being positioned on the skin and / or in that it has a re-absorption time constant from the sweat ducts into the Epidermis of less than 15 min.

A server behavior modification system assists a customer during a financial activity, such as a transaction, and includes a current financial activity assistance system having a data collection system for collecting current physiological activity data, such as current electrodermal activity data, and a data manipulation system for assessing the likelihood of vulnerability to a predetermined undesired financial behavior, as defined by customer input received by a customer settings definition system. The assessment is based at least in part on the data manipulation system comparing a combined historical behavior pattern with the collected current data. The combined historical behavior pattern comprises a correlation between historical physiological activity data and historical financial activity data. An alerting system instructs a customer behavior modification system to produce an alert based at least in part on an assessment of likely vulnerability to a predetermined undesired financial behavior.

A pen which is able to modulate the trace of the pen in response to a sensory signal of the user, such as for example skin conductance or respiration. The sensory signals represent the mood of the user. By changing the trace of the pen, a change in mood of the user can be expressed.