functional MRI
Activity-mapping brain scan
Functional MRI, usually abbreviated fMRI, is a brain imaging technique that measures neural activity by detecting changes in blood flow.
When brain regions become active, they consume more oxygen, creating signals the scanner can map.
Researchers use fMRI to study which areas of the brain respond to specific tasks, stimuli, or thoughts: The fMRI showed increased activity in the amygdala when subjects viewed threatening images.
- neuroimagingVisualizing nervous system structure
- default mode networkBrain regions active at rest
- resting stateInactive default condition
- brainSeat of cognition
- voxel3D image element
brain mapping · BOLD signal · blood oxygen level · magnetic resonance imaging · computed tomography · MRI · real-time feedback · coil · beep · tunnel · electroencephalography · hum · click · lie still · magnet · prefrontal · brain imaging · PET scan
- imagingdigital imaging, medical imaging, camera, digital camera, MRI
- medical imagingCT scan, MRI, X-ray, PET scan, MRI scan
- MRI/NMRMRI scan, magnetic field, resonance, T1, spectrometer
- neurodiagnosticsneurological exam, EEG, brain MRI, brain scan, reflex test
- neuroimagingbrain MRI, brain scan, voxel, voxels, brain mapping
- stroke researchneuroimaging, brain imaging, CT scan, MRI, angiography
functional MRIelectrophysiology
Biology's electrical activity science