Ethological Study of Yawning in Primates . 1 . Quantitative Analysis and Study of Causation in Two Species of Old World Monkeys ( Cercocebus albigena and Macaca fascicularis )

@inproceedings{Deputte2002EthologicalSO,
  title={Ethological Study of Yawning in Primates . 1 . Quantitative Analysis and Study of Causation in Two Species of Old World Monkeys ( Cercocebus albigena and Macaca fascicularis )},
  author={Bertrand L. Deputte},
  year={2002}
}
Yawning is a common, species-typical behaviour in many vertebrate species that as attracted substantial popular, but relatively little scientific, attention (BARBIZET 1958; PROVINE 1986; PROVINE et al. 1987a). Yawning is commonly described in terms of its two principal components: a respiratory and a mouth-gape component. The act is also generally associated with other movements of head and body. Yawning bas mainly attracted physiologists who have focused more on the respiratory component… CONTINUE READING