Lateralization of minicolumns in human planum temporale is absent in nonhuman primate cortex.
Brain Behav Evol
; 57(6): 349-58, 2001 Jun.
Article
en En
| MEDLINE
| ID: mdl-11713389
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.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Lóbulo Temporal
/
Pan troglodytes
/
Dominancia Cerebral
/
Evolución Biológica
/
Macaca mulatta
Tipo de estudio:
Diagnostic_studies
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Brain Behav Evol
Año:
2001
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
Suiza