Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1992 Aug;38(4):301-4.
doi: 10.1016/0306-9877(92)90021-4.

The origin of the mammalian brain as a case of evolutionary irreversibility

F Aboitiz  1
Affiliations

The origin of the mammalian brain as a case of evolutionary irreversibility

F Aboitiz. Med Hypotheses. 1992 Aug.

Abstract

The origin of the mammalian neocortex is usually considered as an improvement in the design of the brain. I suggest that the mammalian neocortex arose as a consequence of contingent adaptations in which there was no specific selection for more elaborate cognitive abilities. This perspective differs from the current view of brain evolution as a progressive phenomenon towards increased intelligence.

PubMed Disclaimer

LinkOut - more resources