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  • Imaging system
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  • Imaging system

Imagent?

Article: 00129864

Imaging system

Imagent provides a balance between temporal and spatial resolution for the study of superficially located areas of human brain. Imagent detects variations in the oxygenation levels of activated brain areas and provides a map of the areas where the changes occur. The technique is called Diffuse Optical Tomography (DOT).

Brain imaging techniques can be broadly classified in two groups. One group includes the techniques that have a good spatial resolution (up to 1-2 millimeters) but a poor temporal resolution, such as functional Magnetic Resonance Imaging (fMRI) and Positron Emission Tomography (PET). The second group includes techniques featuring an excellent temporal resolution (of the order of milliseconds) but providing a limited spatial information. This group includes the Event Related Brain Potential (ERP) and the Magneto-encephalography (MEG).

Imagent is an instrument capable of detecting changes in areas of the brain activated by an external stimulus; the detected signal is processed and produces a map of the activated area.

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