公开(公告)号：US10595741B2

公开(公告)日：2020-03-24

申请号：US15501978

申请日：2014-08-06

Applicant: Institute of Automation Chinese Academy of Sciences

Inventor： Tianzi Jiang ,  Xin Zhang ,  Nianming Zuo ,  Juanning Si ,  Ruirui Zhao ,  Jian Yu

IPC: A61B5/00 ,  A61B5/0478 ,  A61B5/0476 ,  A61B5/1455 ,  A61B5/145

Abstract: A method and system for detecting brain activity may be disclosed, the method including performing multi-channel synchronous collections of brain electrical signals and cerebral cortex blood oxygen signals simultaneously and ensuring synchronicity of the collected signals among channels by collecting the signals at multiple locations simultaneously. A system may include a functional near-infrared light source emission module, which may employ the frequency division multiplexing technique. A multi-functional joint collection helmet may access the light source signal emitted from the emission module, then may be processed by a near-infrared detection module. Further, the near-infrared detection module may detect optical signals of the scalp, while a brain electricity detection module detects electrical signals of the scalp. Finally, a central control unit may synchronize data collected from the detected signals and may control a variety of functional modules and upload the data to a host computer.

公开(公告)号：US11944447B2

公开(公告)日：2024-04-02

申请号：US16961700

申请日：2016-11-03

Applicant: INSTITUTE OF AUTOMATION, CHINESE ACADEMY OF SCIENCES

Inventor： Tianzi Jiang ,  Xin Zhang ,  Nianming Zuo ,  Juanning Si

IPC: A61B5/378 ,  A61B5/00 ,  A61B5/026 ,  A61B5/374

CPC classification number: A61B5/378 ,  A61B5/0075 ,  A61B5/0261 ,  A61B5/374 ,  A61B5/7207 ,  A61B5/7282 ,  A61B5/7285

Abstract: A neurovascular coupling analytical method based on an electroencephalogram and functional near-infrared spectroscopy includes: S100: acquiring an electroencephalogram signal and a brain hemodynamic signal; S110: extracting an event-related potential signal from the electroencephalogram signal; S120: extracting a time characteristic from the event-related potential signal; S130: extracting a hemodynamic response function from the brain hemodynamic signal; S140: extracting an amplitude characteristic and time characteristics from the hemodynamic response function; and S150: analyzing influence of the time characteristic of the event-related potential signal on the amplitude characteristic and the time characteristics of the hemodynamic response function to obtain a coupling result. The time characteristic of the event-related potential signal is a delay. The amplitude characteristic of the hemodynamic response function is a peak amplitude, and the time characteristics of the hemodynamic response function comprises a rising delay, a peak time, and a full width at half maximum.

公开(公告)号：US20170224246A1

公开(公告)日：2017-08-10

申请号：US15501978

申请日：2014-08-06

Applicant: Institute of Automation Chinese Academy of Sciences

Inventor： Tianzi Jiang ,  Xin Zhang ,  Nianming Zuo ,  Juanning Si ,  Ruirui Zhao ,  Jian Yu

IPC: A61B5/0478 ,  A61B5/00 ,  A61B5/145

CPC classification number: A61B5/0478 ,  A61B5/0476 ,  A61B5/14542 ,  A61B5/14553 ,  A61B5/6803 ,  A61B5/7203 ,  A61B5/7225 ,  A61B5/7246 ,  A61B5/725 ,  A61B2562/066

Abstract: Disclosed are a method and system for brain activity detection. The method is: performing multi-channel synchronous collections of brain electrical signals and cerebral cortex blood oxygen signals simultaneously, and ensuring synchronicity of the collected signals among channels, and collecting said brain electrical signals and said cerebral cortex blood oxygen signals of all locations at the same time. The system comprises: a functional near-infrared light source emission module (2) which employs the frequency division multiplexing technique, wherein the light source is modulated by carrier of different frequencies, said signal is accessed from the multi-functional joint collection helmet (1) through a transmission optical fiber to irradiate the scalp, and after being scattered and absorbed by the brain, the attenuated light signal is processed by the functional near-infrared detection module (3); the functional near-infrared detection module (3) is used for detecting weak optical signals of the scalp; the brain electricity detection module (4) is used for detecting weak electrical signals of the scalp; the central control unit (5) is used for synchronizing and fusing data flows, sending control commands to each functional module, and uploading data to the host computer (6). The method and system can control the interference to be the minimum and have good time scale consistency.