Final answer:
rCBF stands for Regional Cerebral Blood Flow, which is the blood flow in specific regions of the brain.
Step-by-step explanation:
rCBF stands for Regional Cerebral Blood Flow. It refers to the blood flow in specific regions of the brain. It is an important measure used in neuroscience research to understand brain function and diagnose neurological disorders. It can be assessed using various imaging techniques like positron emission tomography (PET) or single-photon emission computed tomography (SPECT).