Lateralization of Minicolumns in Human Planum temporale Is Absent in Nonhuman Primate Cortex
Gross analyses of large brain areas, as in MRI studies of macroanatomical structures, average subtle alterations in small regions, inadvertently missing significant anomalies. We developed a computerized imaging program to microscopically examine minicolumns and used it to study Nissl-stained slides...
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| Veröffentlicht in: | Brain, behavior and evolution behavior and evolution, 2001-06, Vol.57 (6), p.349-358 |
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| container_title | Brain, behavior and evolution |
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| creator | Buxhoeveden, Daniel P. Switala, Andrew E. Litaker, Mark Roy, Emil Casanova, Manuel F. |
| description | Gross analyses of large brain areas, as in MRI studies of macroanatomical structures, average subtle alterations in small regions, inadvertently missing significant anomalies. We developed a computerized imaging program to microscopically examine minicolumns and used it to study Nissl-stained slides of normal human, chimpanzee, and rhesus monkey brains in a region of the planum temporale. With this method, we measured the width of cell columns, the peripheral neuropil space, the spacing density of neurons within columns, and the Gray Level index per minicolumn. Only human brain tissue revealed robust asymmetry in two aspects of minicolumn morphology: wider columns and more neuropil space on the left side. This asymmetry was absent in chimpanzee and rhesus monkey brains. |
| doi_str_mv | 10.1159/000047253 |
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We developed a computerized imaging program to microscopically examine minicolumns and used it to study Nissl-stained slides of normal human, chimpanzee, and rhesus monkey brains in a region of the planum temporale. With this method, we measured the width of cell columns, the peripheral neuropil space, the spacing density of neurons within columns, and the Gray Level index per minicolumn. Only human brain tissue revealed robust asymmetry in two aspects of minicolumn morphology: wider columns and more neuropil space on the left side. This asymmetry was absent in chimpanzee and rhesus monkey brains.</description><identifier>ISSN: 0006-8977</identifier><identifier>EISSN: 1421-9743</identifier><identifier>DOI: 10.1159/000047253</identifier><identifier>PMID: 11713389</identifier><identifier>CODEN: BRBEBE</identifier><language>eng</language><publisher>Basel, Switzerland: S. 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We developed a computerized imaging program to microscopically examine minicolumns and used it to study Nissl-stained slides of normal human, chimpanzee, and rhesus monkey brains in a region of the planum temporale. With this method, we measured the width of cell columns, the peripheral neuropil space, the spacing density of neurons within columns, and the Gray Level index per minicolumn. Only human brain tissue revealed robust asymmetry in two aspects of minicolumn morphology: wider columns and more neuropil space on the left side. This asymmetry was absent in chimpanzee and rhesus monkey brains.</abstract><cop>Basel, Switzerland</cop><pub>S. Karger AG</pub><pmid>11713389</pmid><doi>10.1159/000047253</doi><tpages>10</tpages></addata></record> |
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| subjects | Algorithms Animals Biological Evolution Dominance, Cerebral - physiology Humans Image Processing, Computer-Assisted Macaca mulatta - anatomy & histology Neurons - diagnostic imaging Original Paper Pan troglodytes - anatomy & histology Primates Software Species Specificity Temporal Lobe - anatomy & histology Ultrasonography |
| title | Lateralization of Minicolumns in Human Planum temporale Is Absent in Nonhuman Primate Cortex |
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