Novel TMS-fNIRS brain imaging device

Abstract

The invention discloses a novel TMS-fNIRS brain imaging device. The novel TMS-fNIRS brain imaging device is a device in which the near infrared spectrum technology and the transcranial stimulation technology are adopted to monitor brain blood oxygen changes while achieving magnetic stimulation. The novel TMS-fNIRS brain imaging device comprises a fiber-optic probe module, an fNIRS hardware module,an upper-computer processing module and a TMS stimulation module. The fiber-optic probe module comprises an emitting optical fiber and a receiving optical fiber; the upper-computer processing moduleconducts controlling to emit and receive near infrared light, then processes a collected brain blood oxygen signal, and controls a TMS device to conduct magnetic stimulation on the brain. According tothe novel TMS-fNIRS brain imaging device, a front-mounted probe is changed into an optical fiber structure, a built-in reflector is arranged, and meanwhile the filtering function, the power spectrumcalculating function and the noise removing function are integrated; a BNC communication interface is also designed to be communicated with the TMS device. Interference caused by an electromagnetic inducted current of a strong magnetic field is avoided, the height of the probe is effectively lowered, the effective distance of TMS stimulation is guaranteed, and brain-blood-oxygen pre-signal processing is achieved in real time.

Description

[0001] The invention relates to the field of brain imaging and brain regulation, in particular, a device that uses near-infrared spectrum technology and transcranial stimulation technology to monitor changes in cerebral blood oxygen while magnetic stimulation is used. Background technique [0002] Around the research of cognitive neuroscience, many brain imaging techniques have been developed, including electroencephalography, magnetoencephalography, functional magnetic resonance imaging, and functional near-infrared spectroscopy. These single brain imaging techniques can only provide the correlation between cognitive activity and neural activity, and cannot be used to study the dynamic causal relationship between brain regions. Brain regulation technology can directly intervene in neuron activity and directly reveal information flow in brain regions. Although the existing devices can be used for cerebral blood oxygen signal imaging, they are all single imaging systems and can...

AI Technical Summary

Problems solved by technology

[0004] 1. The existing near-infrared brain imaging equipment, the front optical probe multi-collects integrated electronic circuits, which is difficult to withstand the interference of strong magnetic fields

[0005] 2. Secondly, the height of the front light probe is generally about 3cm, and the TMS stimulation should be as close to the scalp as possible. Such a height makes it difficult for TMS stimulation to achieve the expected effect

[0006] 3. Existing near-infrared brain imaging equipment cannot perform data communication with TMS equipment, so existing near-infrared brain imaging equipment cannot collect cerebral blood oxygen signals while TMS is stimulating, that is, it cannot be combined with TMS equipment. stimulation, which limits the use of these devices for the study of dynamic causal relationships between brain regions

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