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perpendicular distance

The distance from a point to a line or plane measured along the line perpendicular to the line or plane which passes through the given point. It will be the shortest distance between the ...

Neurolinguistics

Neurolinguistics   Reference library

International Encyclopedia of Linguistics (2 ed.)

Reference type:
Subject Reference
Current Version:
2003
Subject:
Linguistics
Length:
5,007 words
Illustration(s):
4

...cognitive) components. A prerequisite for functional localization of electrical brain responses is a high-density EEG recording. Until recently, EEG recordings have been based on the 10–20 system of electrode placement, with inter-electrode distances of about 7 cm. This is not sufficient in relation to the distance between adjacent gyri (approximately 1 cm). The international standard has therefore moved in the direction of recording from 64 or even 128 leads. EEG/ERP is the least complicated and the least expensive among brain imaging methods; also, it is...

Phonological Features

Phonological Features   Reference library

International Encyclopedia of Linguistics (2 ed.)

Reference type:
Subject Reference
Current Version:
2003
Subject:
Linguistics
Length:
4,053 words
Illustration(s):
1

...articulators executes a limited set of behaviors. For example, the soft palate may be raised so as to prevent air from flowing through the nasal cavities, or it may be lowered to allow air to flow through and excite these cavities. The tongue body may be moved parallel and/or perpendicular to the spinal column; the lips may be rounded or spread, etc. In general, in the production of speech sounds, each articulator is independently controlled, so that the features executed by a given articulator are freely combinable with the features executed by any of the other...

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