Imaging of Brain Activation

Paper Summary:

How the brain functions has been of great interest to man for centuries, and in the past few decades, technology has created tools to investigate this process. This paper provides an overview of the five major imaging modalities for brain function: EEG, MEG, MRI, PET, and SPECT. The paper discusses the technology, the applications, and the future applications, as well as explores the current issues in the area. The paper includes colored photographs and figures.

From the Paper:

"Functional imaging tools in current use include electroencephalography (EEG), magnetoencephalography (MEG), single photon emission computed tomography (SPECT), positron emission tomography (PET), and functional magnetic resonance imaging (fMRI). Functional brain imaging is used to diagnose and track the treatment of various brain disorders such as stroke, multiple sclerosis, epilepsy, and other psychological disorders. Functional tools are also used in complex pre-surgical planning and surgical mapping. Issues in the literature relate to the removal of artifacts and increasing resolution. Future directions of the technologies include the combination of modalities, development of surgical planning methods, clinical applications in stroke research, and future uses in epilepsy."

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