+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Comparative analysis of the neocortex during the ontogenesis of cetaceae and primates



Comparative analysis of the neocortex during the ontogenesis of cetaceae and primates



Arkhiv Anatomii Gistologii i Embriologii 90(3): 17-23



Comparative ontogenetic investigation of cytoarchitectonics of the cerebral neocortex has been performed in Cetacea and Primates using paraffin frontal and sagittal cerebral sections stained after Nissl. Cerebral hemispheres of dolphins, whales, monkeys and human being have been studied at various periods of prenatal development and in mature individuals. The comparison has been made at similar stages of cytoarchitectonical differentiation of the cortical plate. At two first stages of the prenatal ontogenesis (formation of the cortical plate and its differentiation into layers) there is not any principle differences between the Cetacea and Primates. Peculiarities of the cerebral cortical plate differentiation in the Cetacea (absence of the internal granular layer IV) is determined at the stage of stratification. Similar agranular character of the cerebral cortex differentiation is maintained during the whole subsequent ontogenesis in the Cetacea (heterogenetic type of the neocortex after Brodman). Absence of the layer IV in the cerebral neocortex determines some other principles in the spatial organization of the cortical-subcortical and in the intracortical connections in the Cetacea brain. This is confirmed by modern data of morphological and electrophysiological investigations. Perhaps, a comparatively more simple initial architectonics of the Cetacea brain limited the level of their functional possibilities, the latter is comparable only with anthropoid apes.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 039614925

Download citation: RISBibTeXText

PMID: 3085642


Related references

Comparative analysis of the cerebral neocortex in ontogenesis of Cetacea and Primates. Arkhiv Anatomii Gistologii I Embriologii 903: 17-23, 1986

Comparative analysis of the cerebral neocortex in the ontogenesis of cetacea and primates. Arkhiv Anatomii Gistologii i Embriologii 90(3): 17-23, 1986

Brain system size and adult-adult play in primates: A comparative analysis of the roles of the non-visual neocortex and the amygdala. Behavioural Brain Research 134(1-2): 31-39, 21st August, 2002

Reelin immunoreactivity in the adult neocortex: A comparative study in rodents, carnivores, and non-human primates. Brain Research Bulletin 57(3-4): 485-488, February-March 1, 2002

Analysis of synaptic gene expression in the neocortex of primates reveals evolutionary changes in glutamatergic neurotransmission. Cerebral Cortex 25(6): 1596-1607, 2015

Postnatal ontogenesis of neurons in cat neocortex. Journal of Comparative Neurology 117: 291-307, 1961

Comparative analysis of layer-specific genes in Mammalian neocortex. Cerebral Cortex 17(8): 1918-1933, 2007

Structural organization of rabbit neocortex in prenatal ontogenesis. Uspekhi Fiziologicheskikh Nauk 34(2): 64-75, 2003

Methylazoxymethanol acetate (MAM ac) effects on the ontogenesis of the mouse neocortex. Journal für Hirnforschung 30(6): 699-705, 1989

Structure of the cerebral cortex. Intrinsic organization and comparative analysis of the neocortex. Revista de Neurologia 34(8): 758-780, 2002

Comparative analysis of the role of olfaction and the neocortex in primate intrasexual competition. Anatomical Record. Part A Discoveries in Molecular Cellular and Evolutionary Biology 281(1): 1182-1189, 2004

The evolution of neocortex in primates. Progress in Brain Research 195: 91, 2012

Ontogenesis of NADPH-diaphorase positive neurons in guinea pig neocortex. Frontiers in Neuroanatomy 9: 11, 2015