{'fraction_non_alphanumeric': 0.017124651533253685, 'fraction_numerical': 0.0031859816806053365, 'mean_word_length': 5.474226804123711, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
THE STRUCTURE OF BIOSIGNALS SELECTION SYSTEM FOR THE TASK OF HUMAN COMMUNICATIVE FUNCTION RESTORING

limited or lost communicative function. it is important to develop effective technical means of compensation or restoration of this function using indirect methods, based on the selection and processing the biosignals, that arise during the implementation of the communicative function. In this case, the quality, informative nature of such biosignals depends on the qualitative and quantitative parameters of the selection system. The work is devoted to the justification the structure of the selection system and the parameters of its elements in order to ensure homogeneity of the statistical material, which is the selected biosignals, produced during the communicative function implementation. In order to restore the communicative function, it is proposed to use a method, based on the synchronous selection and processing of two groups of biosignals: electromyographic (EMG) signals, selected from the neck surface near the vocal folds; electroencephalographic (EEG) signals, selected from the surface of the patient's head near the linguistic centers. Taking into account the similarity of EEG and EMG signals, the possibility of selecting of such signals using one multichannel electroencephalograph, has been analysed. It is established, that such a selection is possible only in the case of expansion the frequency band of input signals, since the upper limit frequency of electroencephalographs usually does not exceed 100 Hz, but this is not enough for the selection of EMG signals, since their structure contains signs of the main tone, whose frequency values may be in the frequency range of 80-450 Hz. The structure of the selection system and preliminary processing of such biosignals is proposed, which includes two independent channels of biopotentials amplification with an extended bandwidth. Additionally, in the structure of the system for conducting experimental research and obtaining a reference signal, the signs of which are manifested in the structure of EEG and EMG signals, a parallel selection of voice signals using a microphone, was performed. On the basis of these vocal signals, the informative features of individual vowel and consonant vocalized sounds in the structure of EEG and EMG signals were performed. Using the proposed structure of the selection system, it is possible to implement technical means for the indirect restoration of the human communicative function.