Which one of the following statements about MEG and EEG is INCORRECT?单项选择题

A

MEG signals are more susceptible to signal decays caused by increased sensor-to-brain distances

B

MEG signals have better source identification.

C

Both MEG and EEG use contactless sensors.

D

MEG and EEG both measure aggregates of neuronal activity.

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类似问题

When comparing MEG to functional MRI, which of the following statements is INCORRECT?

Computer aided tomography (CAT) scans are used to create images of the brain; this technique uses radiation in the [ Select ] X-ray Gamma Radio wave Microwave range. Positron emission tomography (PET) uses radiation in the [ Select ] Gamma Microwave Radio wave X-ray radiation range. Of these two imaging methods, [ Select ] PET CAT is better able to provide functional information about brain regions. MRI uses radiation in the [ Select ] X-ray gamma radio visible frequency.   Because the larger neurons in the cerebral cortex all have the same (approximate) radial orientation, their activity produces electrical potentials that can be detected at the external surface of the head – the amplitude of these Electroencephalography (EEG) signals depends on the degree of [ Select ] Noise Gamma Synchrony Variability of the neurons contributing to the signal. High amplitude, low frequency EEG signals are most evident when we are [ Select ] Awake Dreaming Sleeping .

The researchers used which method to measure brain activity?

This particular type of metabolic imaging technique uses a radioactive isotope to look at the physiological functioning of the brain “in action.” It monitors increases in blood flow and glucose activity in particular parts of the brain.

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