Glossary M

- Magnetoencephalogram (MEG) : Magnetoencephalogram (MEG is the magnetic equivalent of the Electroencephalogram in which a three-dimensional magnetic field of the brain can then be calculated. Superconducting quantum interference device (SQUID) detects the small magnetic fields in the brain that are a marker of neural activity. A disadvantage of MEG is related to that it is expensive and not readily available for clinical applications.

Magnetoencephalograph (MEG) refers to the device that measures the faint magnetic fields generated by the brain’s activity

Magnetoencephalography (MEG) refers to an imaging technique that measures the magnetic fields generated by electrical activity in the brain by highly sensitive measuring devices

Magnification is defined as a cognitive distortion in which an imperfection is exaggerated into something greater than it is.

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Magnitude refers to a property of measurement scales having to do with the fact that scale values can be ordered on the basis of magnitude: if A > B and B > C, then A > C.

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Magnitude estimation refers to a psychophysical method in which the subject assigns numbers to a stimulus that are proportional to the subjective magnitude of the stimulus. Observers assign numbers to the attributes of stimuli usually without restriction except that the numbers be assigned proportional to the judged magnitude (a ratio scale)

Magnitude gap is the difference in outcome between the perpetrator and the victim - the victim loses more than the perpetrator gains..

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Magnocellular neuron is defined as a large-celled neuron of the visual system that is sensitive to changing or moving stimuli in a relatively large visual field

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