Magnetoencephalography
Magnetoencephalography (MEG) can achieve non-invasive dynamic imaging of brain activity in sub-millisecond time scales by measuring the magnetic field generated by nerve currents on the scalp. Through the data analysis of these signals, three-dimensional images can be generated to display the formation and decomposition of the brain network in real time. With optimized paradigm design and signal extraction technology, deep brain regions such as the insula, thalamus, hippocampus, amygdala, and brainstem can be distinguished by MEG, which is widely used in neuroscience research.
MEG Working Principles
The complexity of MEG lies in the sensing technology involved and the methods required to extract relevant signal information in a wide range of experimental environments. Basically, any current will produce magnetic induction, and its strength can be measured far away from the current source, such as with a pick-up coil. The magnetic flux passing through the surface of the coil induces a current in the coil wiring material, and its amplitude is instantaneously proportional to the amplitude of the magnetic induction, and it is easy to measure. The brain imaging of MEG in the resting state is shown in Fig.1.
- Instrumentation
- Basic signal source
The current industry standard relies on the magnetic field sensors of low-temperature superconducting quantum interference devices (SQUIDs) as the main sensors for measuring MEG signals. SQUIDs sensors use the principles of quantum physics to detect small currents, such as those caused by weak magnetic signals, with high sensitivity and large dynamic range.
In a magnetoencephalogram, electrochemical currents circulating inside and between neurons produce magnetic induction. post-synaptic potentials (PSPs) are considered to be the main source of these ionic currents.
Applications of MEG
- Epilepsy
Magnetic brain imaging is used for the planning of epilepsy surgery. Through a multi-center prospective magnetoencephalogram prediction test, part of the intracranial explorations are guided by MEG source imaging, and then surgical resection, which has a significant inhibitory effect on patients' long-term seizure freedom after epilepsy surgery. Especially in the case of overtime lobe epilepsy and non-pathological changes, MEG provided excellent accuracy.
- A new type of wearable system MEG
This new invention opens the door to neuroscience research. Compared with traditional MEG, research objects can move naturally and interact with the real world, as shown in Fig.3. The system opens up new possibilities for scanning any subject or group of patients, including applications, such as neurodevelopmental connector features, imaging subjects' natural movement in a virtual environment, and studying the pathophysiology of movement disorders.
MEG helps us to understand regional and large-scale brain dynamics more deeply: from the function of neural oscillations and related brain activation events to the functional connection mechanism between regions and the emergence of network communication patterns in the brain system. MEG is playing an increasingly critical role in elucidating the magnificent mechanical principles of cognition, the brain system, and clinical neuroscience.
Creative Biolabs has been focusing on neuroscience and neurological diseases research for many years. Our rich experience and reliable products can help you achieve the most efficient research in a shorter time. Our goal is to cooperate with customers to jointly promote the development of the neurological field.
- iNeuMab™ Rabbit Anti-Alpha-synuclein (CBP1631) (Cat#: NAB-08-PZ079)
- iNeuMab™ Anti-TREM2 BBB Shuttle Antibody (NRZP-1022-ZP4114) (Cat#: NRZP-1022-ZP4114)
- iNeuMab™ Anti-TREM2 Antibody (NRP-0422-P792) (Cat#: NRP-0422-P792)
- iNeuMab™ Anti-F-Spondin/SPON1 Antibody, Clone 3F4 (Cat#: NRZP-0822-ZP4740)
- iNeuMab™ Anti-GARP Antibody (NRP-0422-P1639) (Cat#: NRP-0422-P1639)
- iNeuMab™ Anti-EPHB2 Antibody (NRP-0422-P1220) (Cat#: NRP-0422-P1220)
- iNeuMab™ Anti-ApoC3 BBB Shuttle Antibody (NRZP-1022-ZP3505) (Cat#: NRZP-1022-ZP3505)
- Mouse Anti-Human α-Synuclein Phospho (Tyr39) (CBP3706) (Cat#: NAB201250LS)
- iNeuMab™ Anti-Tau Antibody (NRP-0422-P1760) (Cat#: NRP-0422-P1760)
- iNeuMab™ Anti-Tau Antibody (NRP-0422-P2293) (Cat#: NRP-0422-P2293)
- Green Fluorescent Alpha-synuclein Cell Line (Cat#: NCL2110P209)
- iNeu™ Human Motor Neurons (Cat#: NCL-2103-P71)
- Mouse Microglia N9 (Cat#: NCL2110P073)
- Mouse Microglia Cell Line BV-2, Immortalized (Cat#: NCL2110P153)
- Rat Glioma Cell Line C6 (Cat#: NCL2110P346)
- Human Brain Vascular Adventitial Fibroblasts (Cat#: NCL-21P6-014)
- iNeu™ Human Schwann Cell (Cat#: NCL-2103-P63)
- Mouse Midbrain Dopaminergic Neuron Cell MN9D (Cat#: NCL2110P059)
- Human Microglia Cell Line HMC3, Immortalized (Cat#: NCL-2108P38)
- Mouse Retinal Ganglion Cells (Cat#: NCL2110P145)
- Beta Amyloid (1-40), Aggregation Kit (Cat#: NRZP-0323-ZP199)
- Alpha Synuclein Aggregation Kit (Cat#: NRZP-1122-ZP15)
- Human GFAP ELISA Kit [Colorimetric] (Cat#: NPP2011ZP383)
- Amyloid beta 1-42 Kit (Cat#: NRP-0322-P2170)
- Human Poly ADP ribose polymerase,PARP Assay Kit (Cat#: NRZP-1122-ZP62)
- Beta Amyloid (1-42), Aggregation Kit (Cat#: NRZP-0323-ZP200)
- Human Tau Aggregation Kit (Cat#: NRP-0322-P2173)
- Alpha-Synuclein Aggregation Assay Kit (Cat#: NRZP-1122-ZP37)
- VSV-eGFP (Cat#: NTA-2011-ZP20)
- Dextran, NHS Activated (Cat#: NRZP-0722-ZP124)
- AAV2 Full Capsids, Reference Standards (Cat#: NTC2101070CR)
- Lenti of Mouse synuclein, alpha (Snca) transcript variant (NM_001042451) ORF clone, mGFP Tagged (Cat#: NEP-0521-R0864)
- Human apolipoprotein E (APOE) (NM_000041) ORF clone, Untagged (Cat#: NEP-0421-R0232)
- Rat Parkinson disease (autosomal recessive, juvenile) 2, parkin (Park2) (NM_020093) ORF clone/lentiviral particle, Myc-DDK Tagged (Cat#: NEP-0621-R0041)
- ABCA1 Antisense Oligonucleotide (NV-2106-P27) (Cat#: NV-2106-P27)
- Human huntingtin (HTT) (NM_002111) ORF clone, Myc-DDK Tagged (Cat#: NEP-0521-R0497)
- Human presenilin 1 (PSEN1), transcript variant 2 (NM_007318) ORF clone, TurboGFP Tagged (Cat#: NEP-0421-R0140)
- Human superoxide dismutase 1, soluble (SOD1) (NM_000454) ORF clone, TurboGFP Tagged (Cat#: NEP-0521-R0748)
- Mouse SOD1 shRNA Silencing Adenovirus (Cat#: NV-2106-P14)
- App Rat amyloid beta (A4) precursor protein (App)(NM_019288) ORF clone, Untagged (Cat#: NEP-0421-R0053)
- Tau Antisense Oligonucleotide (IONIS-MAPTRx) (Cat#: NV-2106-P29)
- NeuroBiologics™ Pig Cerebrospinal Fluid (Cat#: NRZP-0822-ZP498)
- NeuroBiologics™ Rat Cerebrospinal Fluid (Cat#: NRZP-0822-ZP496)
- NeuroBiologics™ Monkey Cerebrospinal Fluid (Cat#: NRZP-0822-ZP495)
- NeuroBiologics™ Human Cerebrospinal Fluid (Cat#: NRZP-0822-ZP491)
- NeuroBiologics™ Mouse Cerebrospinal Fluid (Cat#: NRZP-0822-ZP497)
- NeuroPro™ Anti-EPO BBB Shuttle Protein (Cat#: NRZP-0423-ZP508)
- NeuroPro™ Anti-GDNF BBB Shuttle Protein (Cat#: NRZP-0423-ZP500)
- NeuroPro™ Anti-TNFR BBB Shuttle Protein (Cat#: NRZP-0423-ZP510)
- NeuroPro™ Anti-SGSH BBB Shuttle Protein (Cat#: NRZP-0423-ZP505)
- NeuroPro™ Anti-NAGLU BBB Shuttle Protein (Cat#: NRZP-0423-ZP506)
- NeuroPro™ Anti-IDUA BBB Shuttle Protein (Cat#: NRZP-0423-ZP502)
- NeuroPro™ Anti-idursulfase BBB Shuttle Protein (Cat#: NRZP-0423-ZP497)
- NeuroPro™ Anti-TNFR BBB Shuttle Protein (Cat#: NRZP-0423-ZP501)
- NeuroPro™ Anti-PON1 BBB Shuttle Protein (Cat#: NRZP-0423-ZP507)
- NeuroPro™ Anti-IDS BBB Shuttle Protein (Cat#: NRZP-0423-ZP503)