Sleep in mammals: ecological and constitutional correlates.

  title={Sleep in mammals: ecological and constitutional correlates.},
  author={Truett Allison and Dante Cicchetti},
  volume={194 4266},
The interrelationships between sleep, ecological, and constitutional variables were assessed statistically for 39 mammalian species. Slow-wave sleep is negatively associated with a factor related to body size, which suggests that large amounts of this sleep phase are disadvantageous in large species. Paradoxical sleep is associated with a factor related to predatory danger, which suggests that large amounts of this sleep phase are disadvantageous in prey species. 

Factors relating to energy conservation during sleep in mammals.

It is proposed that sleep may serve a prime role as an energy conserver and immobilizer in the smaller and more primitive mammals, with REM sleep being particularly oriented to this purpose. However,

Sleep in mammals

Sleep viewed as a state of adaptive inactivity

  • J. Siegel
  • Psychology
    Nature Reviews Neuroscience
  • 2009
It is proposed that sleep is best understood as a variant of dormant states seen throughout the plant and animal kingdoms and that it is itself highly adaptive because it optimizes the timing and duration of behaviour.

different between mammalian species

The comparison of mammalian species has revealed striking similarities in the way sleep is regulated which indicates common underlying mechanisms of sleep function.


NonREM sleep alternates with periods of REM sleep, characterized by rapid eye movements, EEG desynchrony, hippocampal theta, ponto-geniculo-occipital (PGO) spikes, twitching, autonomic irregularity and muscle atonia.

Behavioral phenomenology of sleep (somatic and vegetative)

The foregoing analysis of behavioral sleep phenomenology shows that the most significant factual and theoretical aspects of sleep can be logically organized only according to several criteria, it

Sleep-wakefulness rhythms in the rabbit.

A quantitative, theoretical framework for understanding mammalian sleep

A general, quantitative theory for mammalian sleep that relates many of its fundamental parameters to metabolic rate and body size is developed and leads to predictions for sleep time, sleep cycle time, and rapid eye movement time as functions of body and brain mass.



Sleep as an Adaptive Response

  • W. B. Webb
  • Psychology
    Perceptual and motor skills
  • 1974
It is proposed that sleep is adaptive non-responding and that the sleep characteristics of particular species reflect the adaptive requirements for non-responding in the ecological niche of species.

Mammalian Sleep, Longevity, and Energy Metabolism; pp. 425–446

Based on data for 53 mammalian species reported in the literature, statistical analyses revealed that daily sleep quotas correlate positively with metabolic rate and negatively with maximum life span

Toward an evolutionary theory of dreaming.

  • F. Snyder
  • Psychology
    The American journal of psychiatry
  • 1966
The author postulates that while extended sleep achieves conservation of energy, the REM State serves a "sentinel" function, bringing about brief but periodic awakenings after preparing the organism for immediate fight or flight.

Sleep in the opossum Didelphis marsupialis.

Relation of Gestation Time to Brain Weight for Placental Mammals: Implications for the Theory of Vertebrate Growth

Results can be explained by a theory of kinetics of fetal growth based on three hypotheses: the brain is the slowest-growing organ in the fetal mammal; it is also the pacemaker for growth of other tissues, which are held to its rate of growth; and brain growth proceeds at the maximum rate allowed by its intrinsic growth law.

Ontogenetic development of the human sleep-dream cycle.

REPORTS Stratigraphy of the Wisconsin Range, Horlick Mountains, Antarctica, and Dechlorination of DDT by Aerobacter aerogenes, Antarctica.