Magnetic resonance imaging

Magnetic resonance imaging

A community portal about Magnetic resonance imaging with blogs, videos, and photos. According to Wikipedia.org: Magnetic Resonance Imaging , formerly referred to as Magnetic Resonance Tomography or, in chemistry, Nuclear Magnetic... [more]

A community portal about Magnetic resonance imaging with blogs, videos, and photos. According to Wikipedia.org: Magnetic Resonance Imaging , formerly referred to as Magnetic Resonance Tomography or, in chemistry, Nuclear Magnetic Resonance , is a method used to visualize the inside of living organisms as well as to detect the composition of geological structures. It is primarily used to demonstrate pathological or other physiological alterations of living tissues and is a commonly used form of medical imaging. MRI has also found many novel applications outside of the medical and biological fields such as rock permeability to hydrocarbons and certain non-destructive testing methods such as produce and timber quality characterization. The scanners used in medicine cost approximately $1 million USD per Tesla for each unit, with several hundred thousand dollars per year for maintenance. A man from Fraserburgh, Scotland, with terminal liver cancer become the first patient in the world to receive an MRI body scan in Aberdeen, U.K.

The brain decodes visual information

Just for the record, I would like to challenge anyone in the field of computer rendering/animation to reproduce the picture found in the link here, titled "Escher style Fractal - Connected Cubes" in three dimensions, and to make it viewable with the right eye glasses.

I have read eleven books about the brain -- some big, some little. The most useful and educational ones have a lot of redundant information in them but that just strengthens one's interpretations about what is read in the rest of those books, not to mention the articles and news items that lead to even more reading on the subject. I encourage anyone reading this to read as much about the brain as they can get their hands on to stimulate the myriad receptors in their own. There are some great bits on experimental data that should stimulate those regions of it which are intrigued by those who are naturally inclined to be curious about it.

For example, the cerebral cortex is a gray-hued sheet of brain cells measuring between a millimeter or two in thickness which covers the surface of the white matter which makes up the glial material which forms the scaffolding and structure which supports the neural networks which communicate with the central processing unit sitting on and surrounding the mid-brain. These constitute respectively the thinking and processing part of the brain. Most of the brain supports the circuitry.

Scans which show activity when a subject is stimulated, such as the CAT (Computed Axial Tomography), MRI (Magnetic Resonance Imaging), fMRI (Functional Magnetic Resonance Imaging), PET (Positron Emission Tomography), SPECT (Single Photon Emission Computed Tomography), and DOT (Diffuse Optical Imaging) etc. tend to go a little deeper into the brain and display information when the neurons are activated, displaying the information transfer along the pathways and all the processes leading to where that information ends up. As to whether the actual information is stored or simply processed in the areas one speculates about is beyond the ability of scanning techniques to resolve or decipher.

This is where brain theory comes in.

cont'd.
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baudrunner
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