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

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+).

[1]  C. Leonard,et al.  Anomalous cerebral structure in dyslexia revealed with magnetic resonance imaging. , 1993, Archives of neurology.

[2]  G. Hynd,et al.  Brain morphology in developmental dyslexia and attention deficit disorder/hyperactivity. , 1990, Archives of neurology.

[3]  J. Rapoport,et al.  Three-dimensional cortical morphometry of the planum temporale in childhood-onset schizophrenia. , 1997, The American journal of psychiatry.

[4]  J. Stanley,et al.  Sex differences in mathematical ability: fact or artifact? , 1980, Science.

[5]  C. Leonard,et al.  Brain morphology in children with specific language impairment. , 1997, Journal of speech, language, and hearing research : JSLHR.

[6]  B. A. Gladue,et al.  Sexual orientation and spatial ability in men and women , 1990, Psychobiology.

[7]  M. Naeser,et al.  Computed tomographic scan cerebral asymmetries and morphologic brain asymmetries. Correlation in the same cases post mortem. , 1984, Archives of neurology.

[8]  A. Galaburda,et al.  Cytoarchitectonic organization of the human auditory cortex , 1980, The Journal of comparative neurology.

[9]  Godfrey D. Pearlson,et al.  Structural differences in the cerebral cortex of healthy female and male subjects: a magnetic resonance imaging study , 1995, Psychiatry Research: Neuroimaging.

[10]  F. Gilles,et al.  Left-right asymmetries of the temporal speech areas of the human fetus. , 1977, Archives of neurology.

[11]  Size and Asymmetry of the Planum Temporale , 1996, Acta radiologica.

[12]  J A Wada,et al.  Cerebral hemispheric asymmetry in humans. Cortical speech zones in 100 adults and 100 infant brains. , 1975, Archives of neurology.

[13]  R. M. Murray,et al.  Normal planum temporale asymmetry in familial schizophrenia: a volumetric MRI study , 1997, Psychiatry Research: Neuroimaging.

[14]  P. Stratta,et al.  Planum temporale in schizophrenia: a magnetic resonance study , 1992, Schizophrenia Research.

[15]  R. Royall,et al.  Improving sterological estimates for the volume of structures identified in three-dimensional arrays of spatial data , 1997, Journal of Neuroscience Methods.

[16]  A M Galaburda,et al.  The planum temporale. , 1993, Archives of neurology.

[17]  Douglas W. Jones,et al.  Three‐Dimensional Surface Rendering in MRI Morphometry: A Study of the Planum Temporale , 1993, Journal of computer assisted tomography.

[18]  N. Geschwind,et al.  Human Brain: Left-Right Asymmetries in Temporal Speech Region , 1968, Science.

[19]  C. Holden.  Is "gender gap" narrowing? , 1991, Science.

[20]  G Pearlson,et al.  Small planum temporale volume in Down's syndrome: a volumetric MRI study. , 1997, The American journal of psychiatry.

[21]  K M Heilman,et al.  Morphologic cerebral asymmetries and handedness. The pars triangularis and planum temporale. , 1995, Archives of neurology.

[22]  G D Pearlson,et al.  Reversal of asymmetry of the planum temporale in schizophrenia. , 1995, The American journal of psychiatry.

[23]  K Herholz,et al.  Planum temporale and Brodmann's area 22. Magnetic resonance imaging and high-resolution positron emission tomography demonstrate functional left-right asymmetry. , 1995, Archives of neurology.

[24]  Godfrey D. Pearlson,et al.  Asymmetry of the planum temporale: methodological considerations and clinical associations , 1995, Psychiatry Research: Neuroimaging.

[25]  Robin M. Murray,et al.  The Maudsley Family Study 4. Normal planum temporale asymmetry in familial schizophrenia , 1997, British Journal of Psychiatry.

[26]  Lutz Jäncke,et al.  Total surface of temporoparietal intrasylvian cortex: Diverging left-right asymmetries , 1990, Brain and Language.

[27]  L. J. Chapman,et al.  The measurement of handedness , 1987, Brain and Cognition.

[28]  K Zilles,et al.  Cerebral asymmetry: MR planimetry of the human planum temporale. , 1989, Journal of computer assisted tomography.

[29]  Glenn D. Rosen,et al.  Planum temporale asymmetry, reappraisal since Geschwind and Levitsky , 1987, Neuropsychologia.

[30]  L. DeLisi,et al.  Asymmetries in the superior temporal lobe in male and female first-episode schizophrenic patients: measures of the planum temporale and superior temporal gyrus by MRI , 1994, Schizophrenia Research.

[31]  P Bakan,et al.  Right-left discrimination and brain lateralization. Sex differences. , 1974, Archives of neurology.

[32]  Lutz Jäncke,et al.  Anatomical left‐right asymmetry of language‐related temporal cortex is different in left‐ and right‐handers , 1991, Annals of neurology.

[33]  J N Giedd,et al.  A magnetic resonance imaging study of planum temporale asymmetry in men with developmental dyslexia. , 1997, Archives of neurology.

[34]  G D Pearlson,et al.  Planum temporale asymmetry reversal in schizophrenia: replication and relationship to gray matter abnormalities. , 1997, The American journal of psychiatry.

[35]  P. Falkai,et al.  In vivo morphometry of planum temporale asymmetry in first-episode schizophrenia , 1994, Schizophrenia Research.

[36]  D. Weinberger,et al.  Normal Asymmetry of the Planum Temporale in Patients with Schizophrenia , 1995, British Journal of Psychiatry.

[37]  Torleiv Høien,et al.  MRI evaluation of the size and symmetry of the planum temporale in adolescents with developmental dyslexia , 1990, Brain and Language.