The evolutionary origin of the mammalian isocortex: Towards an integrated developmental and functional approach

@article{Aboitiz2003TheEO,
  title={The evolutionary origin of the mammalian isocortex: Towards an integrated developmental and functional approach},
  author={Francisco Aboitiz and Daniver Morales and Juan F Montiel},
  journal={Behavioral and Brain Sciences},
  year={2003},
  volume={26},
  pages={535 - 552}
}
The isocortex is a distinctive feature of mammalian brains, which has no clear counterpart in the cerebral hemispheres of other amniotes. This paper speculates on the evolutionary processes giving rise to the isocortex. As a first step, we intend to identify what structure may be ancestral to the isocortex in the reptilian brain. Then, it is necessary to account for the transformations (developmental, connectional, and functional) of this ancestral structure, which resulted in the origin of the… 

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References

SHOWING 1-10 OF 474 REFERENCES

The evolutionary origin of the mammalian isocortex: insights from molecular developmental biology

Developmental approach is inclined for the developmental approach, which prescribes non-homology between the isocortex and the dorsal ventricular ridge, and suggests a scenario for the origin of theIsocortex as an expansion of the reptilian dorsal cortex, which is consistent with current evidence.

Comparative development of the mammalian isocortex and the reptilian dorsal ventricular ridge. Evolutionary considerations.

There is no evidence in mammals of a structure homologous to the embryonic DVR that can produce isocortical neurons, and further comparative studies are needed of the embryonic development of the lateral and dorsal aspects of the cerebral hemispheres in amphibians, reptiles and mammals.

An hypothesis on the early evolution of the development of the isocortex

Homology and evolutionary origins of the 'neocortex'.

  • H. Karten
  • Biology, Psychology
    Brain, behavior and evolution
  • 1991
Experimental neuroanatomical, physiological and behavioral methods applied to adult avian and reptilian brains have indicated that these origins can be viewed as consequent to two separate events: The elaboration of constituent neuronal populations and their associated connections that are common to the telencephalae of both nonmammalian and mammalian amniotes.

Multiple Origins of Neocortex: Contributions of the Dorsal Ventricular Ridge

Observations suggest that the emergence of basic “cortical” circuit and laminar organization are distinct evolutionary events that can be differentiated and studied independently in order to understand each of their respective contributions to the cognitive functions of the neocortex.

Thoughts on the development, structure and evolution of the mammalian and avian telencephalic pallium.

  • L. Puelles
  • Biology
    Philosophical transactions of the Royal Society of London. Series B, Biological sciences
  • 2001
The new scenario reveals as well a separately evolving tiered structure of the dorsal thalamus, some of whose parts receive input from midbrain sensory centres (collothalamic nuclei), whereas other parts receive oligosynaptic 'lemniscal' connections bypassing the midbrain (lemnothalamicuclei).

The evolutionary origin of the mammalian cerebral cortex.

  • F. Aboitiz
  • Biology, Psychology
    Biological research
  • 1992
The origin of the cerebral cortex resulted from the combination of adaptations to nocturnality and the development of olfactory-driven behavior, and its origin is not directly related to higher cognitive capacities.

Dual origin of the mammalian neocortex and evolution of the cortical plate

It has been demonstrated that the structural organization of the mammalian neocortex undergoes a series of fundamental transformations in the course of its early embryonic development and new ideas concerning the origin, the embryonic development, and the phylogenetic evolution of the mammal cerebral cortex are proposed.
...