• Corpus ID: 16272752


  author={Ronald Baenninger and Monica Greco},
  journal={Psychological Record},
Attempts were made in three experiments to induce human subjects to yawn reliably in the laboratory. In subjects who believed they were not observed, reading about yawning did increase their frequency of yawning, compared to reading about scratching or day dreaming. In the second experiment, performing a spontaneous yawn decreased skin conductance, but "faked" yawns did not have this effect. In subjects under observation during the third experiment neither boredom, vigilance, nor reading about… 


ABTRACT From personal logs kept by 28 subjects of their yawning during 1 week we found that yawns occurred during the hours of transitions between sleeping and waking. During the day yawns were

On yawning and its functions

  • R. Baenninger
  • Psychology, Biology
    Psychonomic bulletin & review
  • 1997
The forms and behavioral correlates of yawning are described, and the phylogenetic and ontogenetic aspects of the act are examined with particular attention to its possible functions. Much evidence

Yawning: a cue and a signal

Why do we yawn?

Occurrences of Yawn and Swallow are Temporally Related

A greater-than-fivefold increase in rest (saliva) swallowing rate during the 10-s period immediately following contagious yawning elicited in 14 adult humans through the viewing of videotaped yawn stimuli is shown.

Neuroscience and Biobehavioral Reviews

It is found that theories ascribing a physiological role to yawning (such as the respiratory, arousal, or thermoreg- ulation hypotheses) lack evidence, and the notion that yawning has a communicative function involved in the transmission of drowsiness, boredom, or mild psychological stress receives increasing support from research in different fields.

One thousand yawns

Some of the experimental and observational research that has been done on yawning and contagious yawning in primates—human and nonhuman— and to a lesser extent in other species are reviewed.

An investigation of auditory contagious yawning

An auditory fMRI study found that yawn sounds given significantly higher ratings, a trait positively correlated with each individual’s empathy measure, and random effects analyses revealed enhanced hemodynamic activity in the right posterior inferior frontal gyrus in response to hearing yawns provided evidence for pIFG involvement in contagious yawning.

Content and Contagion in Yawning

Yawning has a well documented contagious effect: viewing or hearing a yawn—as well as talking or thinking about yawns—causes human subjects to yawn. While comparative ethological and neurological



Yawning: Effects of stimulus interest

The hypothesis that subjects yawn more while observing uninteresting than while observing interesting stimuli was tested by comparing the yawns produced by 17- to 19-year-old college freshmen while

Self-report as a valid measure of yawning in the laboratory

The validity of self-report for studying yawning in the laboratory was examined. Thirty undergraduate students were assigned to one of two groups. Both groups recorded their own yawns using an

Is yawning a cholinergic response?

Observations make some observations that indicate the involvement of a central cholinergic response in yawning, and the relation of these observations to the basic mechanism of yawning has not been studied.

Serotonergic modulation of Yawning

Do men yawn more than women

Yawning: no effect of 3-5% CO2, 100% O2, and exercise.

Xenopus skin mucus induces oral dyskinesias that promote escape from snakes

Sexual behavior in adult gonadectomized female pseudohermaphrodite, female, and male rhesus macaques (Macaca mulatta) treated with estradiol benzoate and testosterone propionate.

Sexual behavior of gonadectomized adult rhesus macaques given no hormonal treatment, treated with estradiol benzoate, and treated with testosterone propionate gave little evidence of masculinization, but males displayed significantly greater rates of sexual behavior than hermaphrodites or females.