Brain imaging modalities
| Imaging modality | Description |
| Positron emission tomography | Measures regional glucose utilisation, cerebral blood flow (both measures of regional brain activity) and receptor occupancy. |
| Arterial spin labelling | Cerebral blood flow. |
| Electroencephalogram | Cerebral electrical activity. |
| Magnetoencephalography | Measures magnetic fields produced by electrical activity of the brain. |
| Magnetic resonance spectroscopy | Measures brain concentration of brain metabolites and neurotransmitters. |
| Structural MRI | Provides high spatial resolution and soft tissue contrasts to measure brain morphometry. |
| Functional MRI | Measures brain activity by detecting changes in blood oxygenation and flow during rest or an evoked task. |
| Diffusion tensor imaging | Assesses the microstructure of white matter and anatomical connectivity and integrity. |