Which advantages and disadvantages are wrong about FMRI?A) Advantage: Cheaper than PET scanB) Advantage: Higher spatial resolution than PET scan and MEG.C) Disadvantage: The blood activity is slower than the neuronal activity.D) Disadvantage: Lower temporal resolution than MEG.E) Advantage: The blood activity is faster than the neuronal activity
Question
Which advantages and disadvantages are wrong about FMRI?A) Advantage: Cheaper than PET scanB) Advantage: Higher spatial resolution than PET scan and MEG.C) Disadvantage: The blood activity is slower than the neuronal activity.D) Disadvantage: Lower temporal resolution than MEG.E) Advantage: The blood activity is faster than the neuronal activity
Solution
A) Advantage: Cheaper than PET scan - This is incorrect. FMRI is generally more expensive than PET scans.
B) Advantage: Higher spatial resolution than PET scan and MEG - This is correct. FMRI does have a higher spatial resolution compared to PET scans and MEG.
C) Disadvantage: The blood activity is slower than the neuronal activity - This is correct. The blood-oxygen-level-dependent (BOLD) signal that FMRI measures is indeed slower than the actual neuronal activity.
D) Disadvantage: Lower temporal resolution than MEG - This is correct. FMRI has a lower temporal resolution compared to MEG.
E) Advantage: The blood activity is faster than the neuronal activity - This is incorrect. As mentioned in C, the BOLD signal is slower than the neuronal activity, not faster.
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