blood oxygen level dependent

blood ox·y·gen lev·el de·pen·dent

(blŭd ok'si-jĕn lev'ĕl dĕ-pen'dĕnt)
A functionalMRI technique that uses the differences in magnetic susceptibility between oxyhemoglobin and deoxyhemoglobin to image areas of activated cerebral cortex.
References in periodicals archive ?
The study participants were shown a series of short videos featuring either sexually explicit content or sports whilst their brain activity was monitored using functional magnetic resonance imaging (fMRI), which uses a blood oxygen level dependent (BOLD) signal to measure brain activity.
This characteristic is known as the blood oxygen level dependent (BOLD) effect.
During a simple finger-tapping task, changes were assessed in cerebral blood flow, cerebral metabolic rate of oxygen consumption, and blood oxygen level dependent mapping within a subcortical region, the lenticular nuclei of the basal ganglia.
It uses a imaging technique known as blood oxygen level dependent or BOLD.
Called Blood Oxygen Level Dependent (BOLD) imaging, the new method detects increases in blood flow to active areas of the brain.