Superior Temporal Gyrus

PI Name:

PATRICK BARTA, M.D.

PI Name:

NANCY HONEYCUTT, PhD

 

DEPARTMENT OF PSYCHIATRY AND BEHAVIORAL SCIENCES
JOHNS HOPKINS UNIVERSITY, SCHOOL OF MEDICINE
BALTIMORE, MD

PI Name:

GODFREY PEARLSON, M.D.

 

CLINICAL COGNITIVE NEUROSCIENCE LABORATORY
THE INSTITUTE OF LIVING, HARTFORD HOSPITAL
HARTFORD, CT

Project Title:

AUDITORY HALLUNICATION IN SCHIZOPHRENIA

Abstract:

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+).

Download:

This data is available with registered usernames and passwords. If you have already registered, and your registration has been confirmed, you may proceed to the download page.

References:

Honeycutt NA, Musick A, Barta PE, Pearlson GD: Measurement of the planum temporale (PT) on magnetic resonance imaging scans: temporal PT alone and with parietal extension. Psychiatry Res 2000 Apr 10;98(2):103-16.

Links:

Clinical Cognitive Neuroscience Laboratory, The Institute of Living, Hartford Hospital

Division of Psychiatric Neuro-Imaging, Department of Psychiatric Neuro-Imaging, Johns Hopkins University School of Medicine

Brain Subvolume Image Data for Validation of Segmentation:

20 subvolumes(10 each of left and right) are available in two formats: ANALYZE (7.5) and MATLAB formats.

The MATLAB data was generated on Linux but can be read in by other *IX systems.

Explanation of MATLAB format:

  • mrinz - nonzero mri intensity voxel
  • mannz - corresponding hand segmented voxel
  • coord - voxel coordinate identifier
  • ic - x coordinate: if ic value is zero set to xdim
  • jc - y coordinate: if jc value is zero set to ydim
  • kc - z coordinate: if kc value is zero set to zdim
  • xdim, ydim, zdim - voxel resolution

Hand segmentation labels:

  • STG-GRAY = 1
  • NOT-STG-GRAY = 0 (i.e. outside STG-GRAY).

Supported by:

  • NIH MH43775
  • NIH MH60504
  • NIH MH52886
  • NIH P41-RR15241
  • NSF NPACI

For additional information or questions, please contact cis@cis.jhu.edu