Functional MRI (fMRI), performed while the patient does various tasks, can measure shifts in electrical intensity and blood flow and indicate which brain region each activity affects.
In terms of the study of temperament, fMRI allows researchers to study such complex brain activities as problem-solving as well as visual and auditory (hearing) perception.
In 2003, the National Institute of Mental Health (NIMH) began a study that uses fMRI technology on 60 children and adolescents between the ages of nine and 16.
Since the amount of deoxyhemoglobin in the blood affects the magnetic resonance image signal, it can be used as the source of the signal for fMRI.
FMRI has many beneficial applications, ranging from more accurate planning for brain surgery to more effective pain management.
This discovery means that fMRI studies can be conducted without injecting radioactive materials into a subject's blood.
This technology is known as functional magnetic resonance imaging (fMRI).