Compare the utility of fNIRS imaging to an fMRI imaging technique in studying brain activity. Which of the following statements is true?
1) fNIRS can be used throughout the life span, while fMRI is limited to adult patients
2) fNIRS is more accurate than fMRI in measuring brain activity
3) fNIRS and fMRI are equally effective in studying brain activity
4) fNIRS is only used in research settings, while fMRI is used in clinical settings