Measurement of the planum temporale (PT) on magnetic resonance imaging scans: Temporal PT alone and with parietal extension

Nancy A. Honeycutt, Anjene Musick, Patrick E. Barta, Godfrey D. Pearlson

Research output: Contribution to journalArticle


The planum temporale (PT) has been of interest because of (1) its consistent left greater than right asymmetry among right-handed and most left-handed normal individuals; and (2) its relation to language, another variable shown to be highly left-lateralized in normal subjects. Individuals with neurodevelopmental disorders have been reported to show abnormal PT asymmetry (either reversed or absent asymmetry). Several studies have been conducted measuring the PT on MRI scans, although the results do not always concur. We review some of these studies and discuss methodological differences between them. Additionally, we propose a method that has proved to be highly reliable for the measurement of both temporal PT and its parietal extension (PT+).

Original languageEnglish (US)
Pages (from-to)103-116
Number of pages14
JournalPsychiatry Research - Neuroimaging
Issue number2
StatePublished - Apr 10 2000



  • Heschl's gyrus
  • MRI
  • Superior temporal gyrus
  • Temporal lobe
  • Volume

ASJC Scopus subject areas

  • Neuroscience (miscellaneous)
  • Radiology Nuclear Medicine and imaging
  • Psychiatry and Mental health

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