What technique localizes areas of brain function such as language, memory, vision, and movement?

• A. PET
• B. Brain mapping
• C. EEG
• D. CT

Answer: (B)

Brain mapping is the process of linking specific brain regions to functions like language, memory, vision, and movement. By identifying which areas are responsible for these tasks, clinicians and researchers can understand how the brain organizes different functions and plan interventions accordingly. This mapping can be done during surgery through cortical stimulation to pinpoint essential sites, or noninvasively with functional imaging methods that show which regions are active during particular tasks. In contrast, structural imaging like CT shows anatomy but not function, EEG records electrical activity with limited spatial precision, and PET is a functional imaging tool used within brain mapping but doesn’t by itself define the overall technique.