neuroimaging
Neuroimaging refers to a variety of techniques used to make pictures of the Central Nervous System. There are two general types of neuroimaging: functional neuroimaging and structural neuroimaging.
Functional Neuroimaging:
Functional neuroimaging is used to find out what areas of the brain are active at a particular time. It is usually combined with a particular task. For example, a neuroscientist studying language development in children might use a functional neuroimaging technique to find out which neurons respond to a particular language sound.
Functional neuroimaging techniques:
- Positron Emission Tomography (PET,PET Scan)
- functional Magnetic Resonance Imaging (fMRI)
- Single-Photon Emission Computed Tomography (SPECT)
- Magnetic Resonance Spectroscopy (MRS)
- Magnetoencephalography (MEG)
- Electroencephalography (EEG)
Structural Neuroimaging:
Structural neuroimaging is used to look at the structure of the brain. It is often used to locate tumors and areas involved in brain damage.
Structural neuroimaging techniques:
- Magnetic Resonance Imaging (MRI)
- Computed (Axial) Tomography (CT Scan)
- Diffusion Tensor Imaging (DTI)
Sometimes functional and structural neuroimages will be overlapped to assist in their interpretation.
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