A Feedback System Combining EEG and Functional Magnetic Resonance Signals

A functional magnetic resonance and feedback system technology, applied in medical science, sensors, diagnostic recording/measurement, etc., can solve problems such as limited applicability of models, complex algorithms, and difficulty in online analysis, achieving good results, improving cognitive function or Effects of reinforcement and improvement in behavioral performance, mathematical learning, or motor skills

Inactive Publication Date: 2011-12-28
BEIJING NORMAL UNIVERSITY
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Problems solved by technology

However, these methods are either limited to data, such as only applicable to task state data or resting state (no task state) data, or have limited applicability to

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  • A Feedback System Combining EEG and Functional Magnetic Resonance Signals
  • A Feedback System Combining EEG and Functional Magnetic Resonance Signals
  • A Feedback System Combining EEG and Functional Magnetic Resonance Signals

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Embodiment Construction

[0019] figure 1 It is a block diagram of the hardware composition of the feedback system that combines EEG and functional magnetic resonance signals, including:

[0020] (1) Magnetic resonance scanners and magnetic adaptation EEG instruments. Magnetic resonance scanners use planar echo imaging sequences. The sequence settings require one TR to transmit a scanned image, corresponding to a functional image at a time point. The scanned image is passed through the image The reconstruction is transmitted to the real-time fMRI processing system through the local area network to the control console; the magnetic adaptation EEG instrument collects EEG signals at the same time, and transmits the synchronous signals recorded through the interface of the magnetic resonance peripheral equipment to the real-time EEG processing system.

[0021] (2) Real-time EEG processing system, recording EEG data and synchronization signals, including the time information of each TR start scanning, the s...

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Abstract

The invention provides a feedback system combining electroencephalogram and functional magnetic resonance signals, which jointly collects and analyzes electroencephalogram and functional magnetic resonance signals, extracts spatial-temporal characteristics of brain specific activity states reflected by the two signals simultaneously, and applies a multi-mode signal to nervous feedback regulation.The system comprises a data detection and pre-processing module, a spatial-temporal characteristic extraction module and a display and feedback module, wherein the data detection and pre-processing module detects the synchronously collected electroencephalogram and functional magnetic resonance signals on line, marks synchronous start points of the two signals, and performs pre-processing respectively; the spatial-temporal characteristic extraction module respectively extracts different electroencephalogram characteristics by aiming at resting state data and task state data, and performs statistic modeling analysis on the electroencephalogram characteristics together with functional magnetic resonance data to extract brain functional regions with the spatial-temporal characteristics; and different characteristics reflecting the same state of the brain are independently or jointly fed back. The system has important application value in clinical rehabilitation, brain-machine interface and other aspects.

Description

technical field [0001] The invention provides a feedback system combining EEG and functional magnetic resonance signals, which belongs to the technical field of biological information processing, and specifically refers to the use of joint acquisition and analysis of EEG and functional magnetic resonance signals to extract the individual brains reflected by these two signals at the same time The characteristics of a specific activity state are fed back to the individual online, and the individual is trained to adjust the activity characteristics of the brain to achieve regulation and improve the corresponding physiological or psychological performance. Background technique [0002] Functional magnetic resonance signals (fMRI) indirectly reflect the activity of neurons through changes in the hemodynamic properties of the brain, and are widely used in scientific research and clinics because of their high spatial resolution of functional localization; The activity of neurons is...

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Application Information

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IPC IPC(8): A61B5/0476A61B5/055
Inventor 赵小杰姚力战志超
Owner BEIJING NORMAL UNIVERSITY
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