<< Reptiles have a brain area previously suspected to play a role in mammalian higher cognitive processes, and establish its role in controlling brain dynamics in sleep. >>
<< The fact that we find a claustrum homolog in reptiles suggests that the claustrum is an ancient structure, likely present in the brains of the common vertebrate ancestor of reptiles and mammals, (..) While our results have not answered the question as to whether the claustrum plays a role in consciousness or higher cognitive functions, they indicate that it may play an important role in the control of brain states (such as in sleep), due to ascending input from the mid- and hindbrain, to its widespread projections to the forebrain and to its role in sharp-wave generation during slow-wave sleep, >> Gilles Laurent
Hidden away: An enigmatic mammalian brain area revealed in reptiles. Max Planck Society. Feb 13, 2020
https://m.phys.org/news/2020-02-hidden-enigmatic-mammalian-brain-area.html
Hiroaki Norimoto, Lorenz A. Fenk, et al. A claustrum in reptiles and its role in slow-wave sleep. Nature volume 578, pages 413–418. Feb 12, 2020
https://www.nature.com/articles/s41586-020-1993-6
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