Cerebral Cortex, Vol. 12, No. 11, 1218-1224,
November 2002
© 2002 Oxford University Press
Asymmetry of the Uncinate Fasciculus: A Post-mortem Study of Normal Subjects and Patients with Schizophrenia
1 Schizophrenia Research Group, Department of Clinical Neurology (Neuropathology), Radcliffe Infirmary, , 2 POWIC, University Department of Psychiatry, Warneford Hospital and , 3 Neurosciences Building, University Department of Psychiatry, Warneford Hospital, Oxford, UK
Address correspondence to Professor P.J. Harrison, Neurosciences Building, University Department of Psychiatry, Warneford Hospital, Oxford, OX3 7JX, UK. Email: paul.harrison{at}psych.ox.ac.uk.
The uncinate fasciculus interconnects the anterior temporal and inferior frontal lobes. The temporal lobes show a number of anatomical asymmetries, some of which are altered in schizophrenia. This study was performed to assess the size and symmetry of the uncinate fasciculus in normal subjects and in patients with the disorder. The area, fibre density and total fibre number of left and right uncinate fasciculi were estimated using stereological methods in 21 control subjects and 17 schizophrenics. The uncinate fasciculus was found to be asymmetrical in both sexes, being 27% larger and containing 33% more fibres in the right than the left hemisphere. Of the 25 brains from which both hemispheres were available, the size asymmetry was seen in 20 subjects and the greater number of fibres in 21 subjects. There was no significant effect of schizophrenia upon the uncinate fasiculus, nor interactions of diagnosis with side or sex. We conclude that the uncinate fasciculus is larger in the right hemisphere, perhaps indicating greater right-sided fronto-temporal connectivity. The unchanged size of the fasciculus in schizophrenia contrasts with commissural tracts, which are affected in this brain series in a sex-specific manner.
![]()
CiteULike
Connotea
Del.icio.us What's this?
This article has been cited by other articles:
![]() |
G. Gong, Y. He, L. Concha, C. Lebel, D. W. Gross, A. C. Evans, and C. Beaulieu Mapping Anatomical Connectivity Patterns of Human Cerebral Cortex Using In Vivo Diffusion Tensor Imaging Tractography Cereb Cortex, June 20, 2008; (2008) bhn102v1. [Abstract] [Full Text] [PDF] |
||||
![]() |
H Duffau, M T. de Schotten, and E Mandonnet White matter functional connectivity as an additional landmark for dominant temporal lobectomy J. Neurol. Neurosurg. Psychiatry, May 1, 2008; 79(5): 492 - 495. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. Rodrigo, O. Naggara, C. Oppenheim, N. Golestani, C. Poupon, Y. Cointepas, J.F. Mangin, D. Le Bihan, and J.F. Meder Human Subinsular Asymmetry Studied by Diffusion Tensor Imaging and Fiber Tracking AJNR Am. J. Neuroradiol., September 1, 2007; 28(8): 1526 - 1531. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. D. Schmahmann, D. N. Pandya, R. Wang, G. Dai, H. E. D'Arceuil, A. J. de Crespigny, and V. J. Wedeen Association fibre pathways of the brain: parallel observations from diffusion spectrum imaging and autoradiography Brain, March 1, 2007; 130(3): 630 - 653. [Abstract] [Full Text] [PDF] |
||||
![]() |
T. Taoka, S. Iwasaki, M. Sakamoto, H. Nakagawa, A. Fukusumi, K. Myochin, S. Hirohashi, T. Hoshida, and K. Kichikawa Diffusion anisotropy and diffusivity of white matter tracts within the temporal stem in Alzheimer disease: evaluation of the "tract of interest" by diffusion tensor tractography. AJNR Am. J. Neuroradiol., May 1, 2006; 27(5): 1040 - 1045. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. R. Highley, M. A. Walker, T. J. Crow, M. M. Esiri, and P. J. Harrison Low Medial and Lateral Right Pulvinar Volumes in Schizophrenia: A Postmortem Study Am J Psychiatry, June 1, 2003; 160(6): 1177 - 1179. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. BURNS, D. JOB, M. E. BASTIN, H. WHALLEY, T. MACGILLIVRAY, E. C. JOHNSTONE, and S M. LAWRIE Structural disconnectivity in schizophrenia: a diffusion tensor magnetic resonance imaging study The British Journal of Psychiatry, May 1, 2003; 182(5): 439 - 443. [Abstract] [Full Text] [PDF] |
||||





