BOLD response

BOLD response, or Blood Oxygen Level Dependent response, refers to changes in blood flow and oxygen levels in the brain, used in neuroimaging techniques like fMRI. When a specific brain area is active, it consumes more oxygen, leading to increased blood flow to that region. This change can be detected and measured, helping researchers visualize which parts of the brain are involved in different tasks or processes. Essentially, BOLD response serves as an indicator of brain activity, allowing scientists to study functions such as memory, emotion, and decision-making in real-time.