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Magnetic resonance imaging ‐ a method of studying the size and asymmetry of the planum temporale
Author(s) -
Larsen J. P.,
Ødegaard H.,
Grude T. H.,
Høien T.
Publication year - 1989
Publication title -
acta neurologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.967
H-Index - 95
eISSN - 1600-0404
pISSN - 0001-6314
DOI - 10.1111/j.1600-0404.1989.tb03906.x
Subject(s) - planum temporale , magnetic resonance imaging , asymmetry , nuclear magnetic resonance , psychology , functional magnetic resonance imaging , neuroscience , medicine , physics , radiology , quantum mechanics
— The planum temporale is a triangular region on the upper surface of the temporal lobe. This area of the brain is important for language processing and shows a left‐right asymmetry of size in most brains. Particular interest has been focused on the size and asymmetry of the planum temporale in brains of individuals with developmental dyslexia. Magnetic resonance imaging (MRI) is a method that produces excellent morphological details of organic structures. We have developed an MRI method of studying the size and asymmetry of the planum temporale in human brains. Because of considerable variation of anatomical landmarks in this cortical region of the brain, an evaluation of asymmetry is not possible in all brains. Furthermore, our experience with this method indicates that any indirect imaging technique of studying asymmetry of the planum temporale must be evaluated with caution. With this in mind, however, MRI may give valuable anatomical information about the planum temporale in individuals with anomalous language function.