Parameter optimization method for decision-making model of brain-computer interface system
A decision-making model and brain-computer interface technology, applied in the direction of mechanical mode conversion, user/computer interaction input/output, computer components, etc., can solve problems such as increasing the decision-making time of brain-computer interface systems and reducing system real-time performance.
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[0028] The present invention will be further described below in conjunction with accompanying drawing.
[0029] Such as figure 1 As shown, a parameter optimization method for a decision-making model of a brain-computer interface system includes the following steps:
[0030] Step 1. Collect and preprocess the EEG signal training data of 10 subjects. Use the EEG acquisition device NeuroScan and 36 conductive electrode caps to collect the EEG signals under the task of recognizing the left and right motion directions at random points with three experimental difficulties as training Data, the EEG sampling rate is 500Hz, and a band-pass filter of 0.1-70Hz is set. Among them, the experimental paradigm of EEG acquisition is as follows: figure 2 As shown, the subject needs to watch the screen during the acquisition process, and the experiment starts after a "Beep" prompt, and a random point stimulus appears 1.5s after the prompt ends. The random point stimulus includes two parts, o...
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Abstract
Description
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Application Information
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