Journal Article10.1016/0165-0270(91)90084-D
Human cortical asymmetries determined with 3D MR technology.
Dean Falk,Charles F. Hildebolt,James M. Cheverud,Luci Kohn,Gary S. Figiel,Michael W. Vannier +5 more
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TL;DR: The finding of three new directional asymmetries for the human cortex is attributed to the sensitivity and accuracy of the 3D MR imaging technology that has recently become available.
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About: This article is published in Journal of Neuroscience Methods. The article was published on 01 Sep 1991. The article focuses on the topics: Central sulcus & Operculum (brain).
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Citations
Evolution of sex differences in spatial cognition
TL;DR: It is concluded that none of the proposed adaptationist hypotheses fit the evidence as it currently exists, and that the modern sex difference in spatial cognition is almost certainly an evolutionary by-product of selection for optimal rates of fetal development.
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Asymmetry of cerebral gray and white matter and structural volumes in relation to sex hormones and chromosomes
TL;DR: The asymmetry in the planum temporale area and the occipital cortex seem related to processes associated with testosterone, whereas the observed cerebellar asymmetries suggest a link with X-chromosome escapee genes.
Individual variation of cortical surface area asymmetries.
TL;DR: The large variability of individual asymmetry scores indicates that cortical asymmetries may be present even in the absence of clear functional asymmetry.
References
Human Brain: Left-Right Asymmetries in Temporal Speech Region
Norman Geschwind,Walter Levitsky +1 more
TL;DR: The planum temporale (the area behind Hesch's gyrus) is larger on the left in 65 percent of brains; on the right it is larger in only 11 percent.
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Asymmetries of the skull and handedness
TL;DR: Some of the asymmetries noted in cerebral computerized transaxial tomography (CTT) studies are reflected in the shape of the skull resulting most often in backward protruding of the occipital bone on the left and a less striking forward protrusion of the right frontal bone.
322
Cerebral asymmetry: MR planimetry of the human planum temporale.
Helmuth Steinmetz,J. Rademacher,Yanxiong Huang,Harald Hefter,Karl Zilles,Armin Thron,Hans-Joachim Freund +6 more
TL;DR: A method is described for the imaging and planimetric measurement of the planum temporale (PT) using computer reformations from three-dimensional fast low angle shot magnetic resonance (MR) data, demonstrating the reliability of the MR criteria for PT delineation.
207
Dendritic organization of the anterior speech area
Arnold B. Scheibel,L.A. Paul,I. Fried,A.B. Forsythe,Uwamie Tomiyasu,A. Wechsler,A. Kao,J. Slotnick +7 more
TL;DR: Findings from Golgi studies can be interpreted as indicating an early preponderance of dendrite growth in the non-speech-gifted hemisphere followed by enhanced dendritic growth inThe dominant hemisphere coincident with the beginning of conceptualization and speech function.
206
Right-left asymmetry in anterior speech region.
TL;DR: The extent of the anterior speech region (defined as pars opercularis and pars triangularis of the third frontal convolution) and of the planum temporale was measured in 12 brains belonging to strictly right-handed persons and found to be significantly larger than the homologous areas in the right hemisphere.
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