%0 Journal Article %T Heart Rate and Heart Rate Variability during Sleep in Family Dogs (Canis familiaris). Moderate Effect of Pre-Sleep Emotions %A Anna Gergely %A Bence Varga %A ¨¢goston Galambos %J Archive of "Animals : an Open Access Journal from MDPI". %D 2018 %R 10.3390/ani8070107 %X It is common knowledge that negative emotions in humans are accompanied by both impaired subjective experience as well as maladaptive changes in behavior and physiology. The present paper investigates heart rate¡ªone of the most commonly used emotion-related physiology measures¡ªin the family dog, with the aim of uncovering its potential relationship with emotions. Sleep recordings were conducted following a positive versus a negative social interaction, as sleep alternations are one of the most conspicuous changes in response to negative affect. We observed differences in heart rate following the positive versus negative interactions, however these were only apparent during wakefulness, but not during sleep %K dog %K sleep %K heart rate %K emotion %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6071078/