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Method and system for pre-processing of EEG signal for cognitive load measurement

A cognitive load and preprocessing technology, applied in the direction of diagnostic recording/measurement, application, psychological device, etc., can solve the problem of changing the characteristic value of the non-blinking area

Active Publication Date: 2018-08-03
TATA CONSULTANCY SERVICES LTD
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  • Description
  • Claims
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Problems solved by technology

However, the main disadvantage is that it also changes the eigenvalues ​​of the non-blinking regions

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  • Method and system for pre-processing of EEG signal for cognitive load measurement
  • Method and system for pre-processing of EEG signal for cognitive load measurement
  • Method and system for pre-processing of EEG signal for cognitive load measurement

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Embodiment Construction

[0017] Some embodiments of the invention showing all of its features will now be discussed in detail.

[0018] The words "comprises," "has," "includes," and "includes" and other forms are intended to be equivalent in meaning and are open-ended, and one or more items following any one of these words does not imply that those items or an exhaustive list of items, or means limited to one or more of the items listed.

[0019] It must also be noted that, as used herein and in the appended claims, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. Although any systems and methods similar or equivalent to those described herein can be used in the practice or testing of embodiments of the invention, the preferred systems and methods are now described.

[0020] The disclosed embodiments are merely examples of the invention, which may be embodied in various forms.

[0021] The elements shown in the figures interoperate as exp...

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Abstract

A method and system is provided for pre-processing of an electroencephalography (EEG) signal for cognitive load measurement. The present application provides a method and system for pre-processing ofelectroencephalography signal for cognitive load measurement of a user, comprises of capturing the electroencephalography signal from the head of the user, detecting the plurality of system artifactsin the captured electroencephalography signal, detecting and removing noisy window from the captured electroencephalography signal, detecting an eye blink region and filtering out said detected eye blink region from the captured electroencephalography signal, utilizing the filtered electroencephalography signal for measuring the cognitive load of the user and subsequently computing different levels of mental workloads on the user using variation of spatial distribution of frontal scalp EEG electrodes for measured cognitive load.

Description

technical field [0001] This application generally relates to cognitive load measurements. Specifically, the present application provides a method and system for preprocessing a user's electroencephalogram (EEG) signal for cognitive load measurement. Background technique [0002] Electroencephalography (EEG) is generally a non-invasive method for monitoring brain activity, which is further used to measure the user's cognitive load, since the brain is the source of cognitive activity. Assessment of cognitive load may have various applications, such as content generation, testing various applications on electronic devices, and applications related to human interaction. Despite its various applications, EEG signals are very low-amplitude signals and are therefore highly susceptible to various systemic artifacts, thereby exhibiting low accuracy in measuring cognitive load. [0003] The prior art literature describes various solutions for detecting and removing systematic artifa...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00A61B5/04A61B5/16A61B5/374
CPCA61B5/16A61B5/7203A61B5/7221A61B5/7282A61B5/163A61B5/316A61B5/374A61B5/377A61B5/291A61B5/369A61B5/7207
Inventor R·K·达斯A·辛哈D·查特吉S·达塔R·D·加瓦斯
Owner TATA CONSULTANCY SERVICES LTD
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