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Brain-computer interface device and method for binaural frequency division auditory induction

A technology of auditory induction and computer interface, which is applied in the field of biomedical engineering and can solve the problems of late development

Pending Publication Date: 2022-02-25
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the auditory brain-computer interface is gradually developing, its development time is relatively late, and it is still in the initial stage of development, and there are still many things to be explored

Method used

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  • Brain-computer interface device and method for binaural frequency division auditory induction
  • Brain-computer interface device and method for binaural frequency division auditory induction
  • Brain-computer interface device and method for binaural frequency division auditory induction

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Embodiment Construction

[0032] The invention constructs a binaural frequency-division auditory-induced brain-computer interface device, which is used to evaluate the brain's response to different frequency auditory stimuli.

[0033] Its technical process is: by integrating ASSR into the auditory P300 system, design an auditory brain-computer interface paradigm combining ASSR and auditory P300, and build an EEG synchronous acquisition device, calculate the user's EEG characteristic parameters offline, and evaluate Differences in EEG characteristics induced by different auditory stimulation durations.

[0034] Overall system design of the present invention such as figure 1 As shown, its system architecture and technical process include: design the user binaural frequency division auditory evoked paradigm presentation, build the EEG signal data acquisition device, calculate the user's EEG characteristic parameters offline, evaluate the binaural frequency division auditory evoked EEG characteristics and ...

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Abstract

The invention relates to the technical field of brain-computer interfaces, and aims to visualize and perceive the reaction process of a brain to different auditory stimuli received by left and right ears, evaluate whether the reaction of the brain to sound stimuli with different time lengths and background sounds is different or not, and establish an objective evaluation standard of BCI training effects of different auditory stimuli, the key technical guarantee is provided for a novel auditory BCI normal form and neurological rehabilitation treatment applied to visual disorder patients can be further researched. The invention provides a brain-computer interface device and a method for binaural frequency division auditory induction, the auditory steady-state response ASSR is integrated into an auditory P300 system, an auditory brain-computer interface normal form with ASSR and auditory P300 mixed is formed, a related electroencephalogram synchronous acquisition device is built, electroencephalogram characteristic parameters acquired by the electroencephalogram synchronous acquisition device are calculated off line, and electroencephalogram characteristic differences induced by different auditory stimulation durations are evaluated. The device and the method are mainly applied to brain-computer interface occasions.

Description

technical field [0001] The invention belongs to the field of biomedical engineering, and designs a brain-computer interface (Brain-Computer Interface, BCI) device and method for binaural frequency division auditory induction. Hearing is one of the important ways for humans to obtain external information. After humans receive auditory stimulation, the brain will induce specific EEG characteristic signals. The human auditory processing mechanism can be studied by recording the EEG (Electroencephalogram, EEG) of brain activity. Background technique [0002] Auditory brain-computer interface is a kind of brain-computer interface. At present, the auditory brain-computer interface can be roughly divided into three categories: auditory P300-based, auditory steady state response (Auditory Steady State Responses, ASSR) and spatial attention-based auditory brain-computer interface. The auditory P300 adopts the "Oddball" paradigm, and gives different auditory stimuli to the subjects. ...

Claims

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Application Information

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IPC IPC(8): A61B5/38A61B5/372A61B5/00
CPCA61B5/38A61B5/372A61B5/7257A61B5/7225A61B5/725A61B5/7235
Inventor 王仲朋陈梓妍明东陈龙刘爽许敏鹏何峰
Owner TIANJIN UNIV