Which technique is used to understand brain activity in cognitive neuroscience?

Which technique is used to understand brain activity in cognitive neuroscience?

• A. PET Scans
• B. X-Ray
• C. EEG
• D. CT Scans

Answer: (A)

Measuring brain activity in cognitive neuroscience relies on imaging methods that show which areas are actively engaged during mental tasks. PET scans are designed to visualize metabolic activity in the brain by using a radiotracer that tracks glucose use. Since active neurons consume more glucose, areas with higher tracer uptake light up on the scan, giving a functional map of brain activity during cognition. In contrast, X-rays and CT scans reveal anatomy, not function, while EEG records electrical activity at the scalp with great timing but less precise localization of where in the brain the activity occurs. So PET scans provide a direct look at which regions are metabolically active during cognitive processing, making them the best choice among these options for studying brain activity.

Measuring brain activity in cognitive neuroscience relies on imaging methods that show which areas are actively engaged during mental tasks. PET scans are designed to visualize metabolic activity in the brain by using a radiotracer that tracks glucose use. Since active neurons consume more glucose, areas with higher tracer uptake light up on the scan, giving a functional map of brain activity during cognition. In contrast, X-rays and CT scans reveal anatomy, not function, while EEG records electrical activity at the scalp with great timing but less precise localization of where in the brain the activity occurs. So PET scans provide a direct look at which regions are metabolically active during cognitive processing, making them the best choice among these options for studying brain activity.