Parsons et al. Are doing a study comparing differences in brain activity levels between patients with schizophrenia and controls with no psychological disorders. Their hypothesis requires a high level of detail and good detection of differences over time. What is the best brain imaging technique to use?

Functional magnetic resonance imaging (fMRI)

Explanation:

The technique of fMRI was developed by Seiji Ogawa and Ken Kwong.

Functional magnetic resonance imaging (fMRI) is the technique that is used to help measure the brain activity. This brain activity is detected by the changes in the flow of blood circulation or oxygenation. Circulation of blood is more in the area of the brain where there is more activity,

In the given case, Parsons et al. will use the technique of fMRI to detect the brain activity of patients suffering from schizophrenia and psychological disorders.

So, the correct answer is Functional Magnetic Resonance Imaging (fMRI).