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Method and apparatus for predicting substance levels from eeg analysis

A material and level technology, applied in blood characterization devices, diagnostic recording/measurement, medical science, etc., to achieve the effect of improving diagnosis, accurate diagnosis, and solving the problem of time lag

Active Publication Date: 2016-10-26
克里希纳·甘地
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, such errors can only be detected retrospectively, resulting in repeated measurements and tests at additional cost
Other issues are the storage and transport of these biological samples to and from the laboratory

Method used

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  • Method and apparatus for predicting substance levels from eeg analysis
  • Method and apparatus for predicting substance levels from eeg analysis
  • Method and apparatus for predicting substance levels from eeg analysis

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Embodiment Construction

[0058] figure 1 is a schematic diagram illustrating a flowchart of a method according to an embodiment of the present invention. In step S101, the EEG measurement of the subject is performed. In step S103, the EEG data is analyzed on a predetermined frequency band. The analysis can be performed simultaneously with the measurement of the EEG or the analysis can be performed off-line.

[0059] There are many frequency bands that can be analyzed. Typically, the predetermined frequency band will be selected from the known delta, theta, alpha, beta, SMR, high beta and gamma frequency bands. Which frequency band to choose will depend on the substance to be measured. figure 2 A method for selecting a frequency band for a specific substance will be explained. Once frequency bands have been determined for a particular substance, they can be used for all analyzes of that particular substance.

[0060] In one embodiment, in step S103, a frequency band is selected from completely d...

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Abstract

A method of predicting a substance level from EEG data comprising the steps of: analyzing the EEG data to obtain an average power for each of a plurality of predetermined frequency bands, calculating a combined value from the derived average powers for each frequency band, the combined Values ​​are calculated by combining the average power for each frequency band by division and / or multiplication in a predetermined order, and an estimate of the hormone level is obtained from the equation Y=bX+C, where Y is the substance to be predicted and X are combined values ​​and b and C are constants. In one embodiment, the substance is Cortisol and the combined value is the ratio θ / α / δ / SMR.

Description

technical field [0001] Embodiments described herein relate generally to the field of methods and devices for measuring levels of hormones, neurotransmitters, biomarkers, and the like. Background technique [0002] The current technique used to measure hormone levels is from blood or saliva samples. Free Cortisol levels can be measured from saliva samples, which are directly proportional to blood Cortisol levels. Previous studies have shown associations between EEG features and cortisol indicating subjects with high and low cortisol levels. [0003] Cortisol is associated with various bodily systems (eg, stress, exercise, hunger, sleep) and is released in response to fear; it is a hormone with many cascading effects. Typically, Cortisol levels are measured from blood or saliva samples (which were found to correlate significantly with blood Cortisol levels). A major challenge with current methods of measuring hormones is the delay in obtaining results from blood, saliva or ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/048A61B5/145A61B5/374
CPCA61B5/14546A61B5/7257A61B5/374A61B5/316A61B5/369A61B5/384
Inventor 克里希纳·甘地
Owner 克里希纳·甘地
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