Final answer:
True. Scanning research techniques, such as fMRI, are useful for investigating the functions of the brain.
Step-by-step explanation:
True. Scanning research techniques, such as functional magnetic resonance imaging (fMRI), are indeed useful for investigating the functions of the brain. fMRI measures changes in brain tissue in response to experimental conditions or events and generates maps of the most active areas. This allows researchers to observe and study brain activity that would otherwise be unobservable. For example, fMRI can be used to monitor brain activity while a person performs a specific task and provide insights into the areas of the brain involved in that task.