ArticlePloS one2013
Eye-blink behaviors in 71 species of primates.
Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed, 54 citations in OpenAlex.
- Trial
- Spontaneous eye blink rate indicates increased attention during grooming in female Barbary macaques.Scientific reports · 2026Article
- If you blink at me, I'll blink back. Domestic dogs' feedback to conspecific visual cues.Royal Society open science · 2025Article
- Spontaneous eye blinks in horses (Equus caballus) are modulated by attention.Scientific reports · 2024Article
- Red deerEcology and evolution · 2023Article
- The use of gaze to study cognition: limitations, solutions, and applications to animal welfare.Frontiers in psychology · 2023Article
- A prosocial function of head-gaze aversion and head-cocking in common marmosets.Primates; journal of primatology · 2022Article
- Spontaneous pauses in firing of external pallidum neurons are associated with exploratory behavior.Communications biology · 2022Article
- Mutual synchronization of eyeblinks between dogs/cats and humans.Current zoology · 2022Article
- CalliFACS: The common marmoset Facial Action Coding System.PloS one · 2022Article
- Article
- Article
- Group size effects on inter-blink interval as an indicator of antipredator vigilance in wild baboons.Scientific reports · 2018Article
- Article
- BLINKER: Automated Extraction of Ocular Indices from EEG Enabling Large-Scale Analysis.Frontiers in neuroscience · 2017Article
- Eye blinking in an avian species is associated with gaze shifts.Scientific reports · 2016Article
- Change They Can't Find: Change Blindness in Chimpanzees during a Visual Search Task.i-Perception · 2015Article
Corrections and comments
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Authors and funding
5 authors at 5 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The present study was performed to investigate the associations between eye-blink behaviors and various other factors in primates. We video-recorded 141 individuals across 71 primate species and analyzed the blink rate, blink duration, and "isolated" blink ratio (i.e., blinks without eye or head movement) in relation to activity rhythms, habitat types, group size, and body size factors. The results showed close relationships between three types of eye-blink measures and body size factors. All of these measures increased as a function of body weight. In addition, diurnal primates showed more blinks than nocturnal species even after controlling for body size factors. The most important findings were the relationships between eye-blink behaviors and social factors, e.g., group size. Among diurnal primates, only the blink rate was significantly correlated even after controlling for body size factors. The blink rate increased as the group size increased. Enlargement of the neocortex is strongly correlated with group size in primate species and considered strong evidence for the social brain hypothesis. Our results suggest that spontaneous eye-blinks have acquired a role in social communication, similar to grooming, to adapt to complex social living during primate evolution.
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