ArticleiScience2021
Cyclic alternation of quiet and active sleep states in the octopus.
Article in iScience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
23 citing papers in PubMed, 1 synthesis or guideline pooled it, 55 citations in OpenAlex.
- Cephalopod Behavior: From Neural Plasticity to Consciousness.Frontiers in systems neuroscience · 2021Pooled it
- The Sentinel Sleep Theory: Unweaving the biological function of REM sleep.Sleep medicine: X · 2026Article
- Invertebrate brains as diversified models for understanding sleep mechanisms and function.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2026Review
- Article
- Sleep-dependent infraslow rhythms are evolutionarily conserved across reptiles and mammals.Nature neuroscience · 2026Article
- Characteristics of the sleep structure in the cleaner wrasse Labroides dimidiatus.Zoological letters · 2026Article
- Sleuthing subjectivity: a review of covert measures of consciousness.Nature reviews. Neuroscience · 2025Review
- FlyVISTA, an integrated machine learning platform for deep phenotyping of sleep inScience advances · 2025Article
- Time in mind: a multidisciplinary review on temporal perception, cognition, and memory.Frontiers in cognition · 2025Review
- FlyVISTA, an Integrated Machine Learning Platform for Deep Phenotyping of Sleep inbioRxiv : the preprint server for biology · 2024Article
- The interplay between sleep and ecophysiology, behaviour and responses to environmental change in fish.The Journal of experimental biology · 2024Review
- Article
- The unified theory of sleep: Eukaryotes endosymbiotic relationship with mitochondria and REM the push-back response for awakening.Neurobiology of sleep and circadian rhythms · 2023Article
- REM sleep function: Mythology vs. reality.Revue neurologique · 2023Review
- Assessing Negative Welfare Measures for Wild Invertebrates: The Case for Octopuses.Animals : an open access journal from MDPI · 2023Article
- Article
- The evolutionary origin of psychosis.Frontiers in psychiatry · 2023Article
- Sleep and Neuroimmunomodulation for Maintenance of Optimum Brain Function: Role of Noradrenaline.Brain sciences · 2022Review
- A sleeping paradox may extend to the spider.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Previous observations suggest the existence of 'Active sleep' in cephalopods. To investigate in detail the behavioral structure of cephalopod sleep, we video-recorded four adult specimens of
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.