The echidna manifests typical characteristics of rapid eye movement sleep

  title={The echidna manifests typical characteristics of rapid eye movement sleep},
  author={Stewart C. Nicol and Niels {\AA}kerstr{\o}m Andersen and NATHAN H. Phillips and Ralph J. Berger},
  journal={Neuroscience Letters},

Sleep-Related Electrophysiology and Behavior of Tinamous (Eudromia elegans): Tinamous Do Not Sleep Like Ostriches

Sleep in the elegant crested tinamou, a small Palaeognath bird that more closely resembles Neognath birds in size and their ability to fly, is examined, finding the absence of a mixed REM sleep state in tinamous calls into question the idea that this state is primitive among Palae Cognath birds and therefore birds in general.

Ostriches Sleep like Platypuses

The findings reveal a recurring sequence of steps in the evolution of sleep in which SWS and REM sleep arose from a single heterogeneous state that became temporally segregated into two distinct states, and suggest that forebrain activation during REM sleep is an evolutionarily new feature, presumably involved in performing new sleep functions not found in more basal animals.

REM sleep

  • J. Siegel
  • Biology, Psychology
    Reference Module in Neuroscience and Biobehavioral Psychology
  • 2021
Of particular interest are manipulations that affect the regulation of muscle tone in REM sleep, which is likely that interactions between REM-on and REM-off cells control the key phenomena of REM sleep.

Local Aspects of Avian Non-REM and REM Sleep

Collectively, the local aspects of sleep described in birds and mammals reveal that wakefulness, NREM sleep, and REM sleep are not always discrete states.

Sleep alterations in mammals: Did aquatic conditions inhibit rapid eye movement sleep?

The possibility of the intrinsic role of aquatic conditions in the elimination of REM sleep in the aquatic mammals is discussed, and a significant negative correlation between REM sleep and the adaptation of the organism to live on land or in water is found.

Sleep in Honeybees - Searching for a role of sleep in memory consolidation

Neurobiologie angefertigt. " 'Hard-eyed' creatures and insects manifestly assume the posture of sleep; but the sleep of all such creatures is of brief duration, so that often it might well baffle

No phylogeny without ontogeny — a comparative and developmental search for the sources of sleep-like neural and behavioral rhythms

The neurophysiological bases for motorically active sleep at the brainstem level and for slow-wave sleep in the forebrain appear to be remarkably similar, and to be subserved in both cases by a primitive diffuse mode of neuronal organization.

Mammalian sleep

The biological background to the development of ideas on rapid eye movement sleep (REM sleep), so-called paradoxical sleep (PS), and its relation to dreaming is examined, and it is suggested that the overall function of REM sleep/dreaming is more important than the content of the individual dream.



The Echidna Tachyglossus aculeatus Combines REM and Non-REM Aspects in a Single Sleep State: Implications for the Evolution of Sleep

The results suggest that REM and non-REM sleep evolved as a differentiation of a single, phylogenetically older sleep state, and it is hypothesized that the physiological changes that occur during postnatal sleep development parallel certain aspects of the changes that have occurred during the evolution of sleep–waking states in mammals.

Sleep: Physiology and Pathology

The symposium reported in this book presents the current research bearing on three very closely related aspects of sleep: Its physiology, its pathology, and the use of drugs in the management of

Ontogenesis of the states of sleep in rat, cat, and guinea pig during the first postnatal month.

The length of extrauterine life as well as the degree of immaturity at birth played a role in the development of the sleep-wakefulness cycle.

Temperature regulation in the echidna (Tachyglossus aculeatus)

The findings suggest that the echidna, although it can maintain its body temperature at low ambient temperature, cannot rely upon evaporation as the major avenue for heat loss at high ambient temperature.

Physiology of Sleep

The guiding principle in collecting morbidity records must not be whether it would be interesting to have them but whether they can confidently be expected to furnish knowledge which will repay the labour of their collection.

The complete mitochondrial genome of the wallaroo (Macropus robustus) and the phylogenetic relationship among Monotremata, Marsupialia, and Eutheria.

The complete mitochondrial DNA (mtDNA) of the wallaroo was sequenced and rejected significantly the commonly acknowledged Theria hypothesis, according to which Marsupialia and Eutheria are grouped together to the exclusion of Monotremata.

The foraging ecology of a termite‐and ant‐eating specialist, the echidna Tachyglossus aculeatus (Monotremata: Tachyglossidae)

It is suggested that food distribution and ambient temperature play an important role in influencing daily and seasonal foraging activity in wheatbelt echidnas.