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Updated: Aug 28, 2025

Noninvasive EEG Recordings from Freely Moving Piglets
Published on: July 13, 2018
Phylogenetic data bearing on the REM sleep learning connection
1Department of Psychiatry, School of Medicine and University of California at Los Angeles, Neurobiology Research 151 A3, Sepulveda VAMC, North Hills, CA 91343.
Abstract:
The phylogenetic data are inconsistent with the hypothesis that REM sleep duration is correlated with learning or learning ability. Humans do not have uniquely high amounts of REM sleep. The platypus, marsupials, and other mammals not generally thought to have extraordinary learning abilities have the largest amounts of REM sleep. The whales and dolphins (cetaceans) have the lowest amounts of REM sleep and may go without REM sleep for extended periods of time, despite their prodigious learning abilities. [Vertes & Eastman, 2000].
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