BACKGROUND Yawning consistently poses a conundrum to the medical profession and neuroscientists. Despite neurological evidence such as parakinesia brachialis oscitans in stroke patients and thermo-irregulation in multiple sclerosis patients, there is considerable debate over the reasons for yawning with the mechanisms and hormonal pathways still not fully understood. Cortisol is implicated duri...

Studies have shown that driver fatigue or unpleasant emotions significantly increase driving risks. Detecting and states providing timely warnings can effectively minimize the incidence of traffic accidents. However, existing models rarely combine emotion detection, there is space to improve accuracy recognition. In this paper, we propose a non-invasive efficient detection method for emotional ...

The number of 88 rats was chosen, after 21 days, they were ablactated and categorized them as following groups:
 control group 1 has a cage 8 in social condition. After 6 weeks saline injection (1mg / kg), the yawning behavior is recorded for 60 minutes. Group 2 conditions receiving ethanol months, each serving 600 mg kg. 3 isolation without treatment with agonist antagonist, Opioid alcoho...

Students of behavior have neglected yawning. It is rarely mentioned in animal behavior texts, and even books that would seem to be particularly relevant, such as Hinde's (1972) Non Verbal Communication, do not include yawning in the index. In physiology the standard texts such as Starlings Human Physiology (Davson & Eggleton, 1962) or the revised Johns Hopkins Atlas of Human Functional Anatomy ...

In humans yawning can be triggered both physiologically as well as psychologically (i.e., spontaneous and contagious yawns), and it is the distinct manifestation of these 2 yawn types that has led researchers to traditionally study them independently. However, evolution produces adaptations that are constrained by and build upon existing architecture, and since contagious yawning is a derived f...

INTRODUCTION The motor pattern 'yawning' has been described for all vertebrate groups. The most intensive study of this behaviour pattern has been made by SAUER & SAUER (1967) in the South African Ostrich. They suggest that yawning assists in the regulation of the physiological state of these birds. It is primarily released and activated by endogenous stimuli, but can also be facilitated and tr...

Driver fatigue detection based on computer vision is considered as one of the most hopeful applications of image recognition technology. The key issue is to extract and select useful features from the driver images. In this work, we use the properties of image sequences to describe states of drivers. In addition, we introduce a kernelized fuzzy rough sets based technique to evaluate quality of ...

To address the issues of insufficient danger excavation and long data collection period in traditional traffic risk assessment methods, this paper proposes a method based on driver’s improper driving behavior abnormal vehicle state warning data. Meanwhile, analyses built environment’s impact using spatial econometric model. Firstly, system with relative incidence (eye closure, yawn, looking awa...

Abstract Yawning is a complex behaviour linked to several physiological (e.g. drowsiness, arousal, thermoregulation) and social phenomena yawn contagion). Being yawning an evolutionary well-conserved, fixed action pattern widespread in vertebrates, it valuable candidate test hypotheses on its potential functions across the different taxa. The spotted hyaena ( Crocuta crocuta ), most cooperative...