Method and Device for Probabilistic Objective Assessment of Brain Function
First Claim
1. A method of assessing brain state of a subject comprising the steps of:
- acquiring electrical signals from the brain using at least one electrode channel;
extracting quantitative features from the acquired signals;
classifying the extracted features into one or more brain states; and
computing a probabilistic index indicating the accuracy of the classification.
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Abstract
A method and apparatus for providing objective assessment of the brain state of a subject using a field portable device. The method includes placing an electrode set coupled to a handheld base unit on the subject'"'"'s head, acquiring electrical brain signals from the subject through the electrode set, processing the acquired electrical brain signals using a feature extraction algorithm, classifying the extracted features into brain states, computing brain abnormality indices reflecting the probability of correct classification of brain state, and graphically displaying the classification result and the abnormality indices on the handheld base unit.
66 Citations
32 Claims
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1. A method of assessing brain state of a subject comprising the steps of:
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acquiring electrical signals from the brain using at least one electrode channel; extracting quantitative features from the acquired signals; classifying the extracted features into one or more brain states; and computing a probabilistic index indicating the accuracy of the classification. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An apparatus for assessing the brain state of a subject, comprising:
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a headset comprising at least one electrode for acquiring brain electrical signals; a base unit;
whereinthe base unit comprises a processor configured to utilize one or more operating instructions stored in a memory to perform feature extraction from the brain electrical signals, classify the extracted signal features into one or more brain states, and compute probabilistic indices of the classification accuracy. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification