Vocalization

Vocal correlates of arousal in bottlenose dolphins (Tursiops spp

Human-controlled regimes can entrain behavioural responses and may impact animal welfare. Therefore, understanding the influence of schedules on animal behaviour can be a valuable tool to improve welfare, however information on behaviour overnight and in the absence of husbandry staff...

Year Published: 2021Topics: Vocalization, Welfare AssessmentAnimal Type: Marine Mammal

Citation: Probert, R., Bastian, A., Elwen, S. H. et al. 2021. Vocal correlates of arousal in bottlenose dolphins (Tursiops spp.) in human care. PLOS ONE 16(9), e0250913.

Distinct profiles of 50 kHz vocalizations differentiate between social versus non-social reward approach and consumption

Social animals tend to possess an elaborate vocal communication repertoire, and rats are no exception. Rats utilize ultrasonic vocalizations (USVs) to communicate information about a wide range of socially relevant cues, as well as information regarding the valence of the...

Year Published: 2021Topics: VocalizationAnimal Type: Rat, Rodent

Citation: Seidisarouei, M., van Gurp, S., Pranic, N. M. et al. 2021. Distinct profiles of 50 kHz vocalizations differentiate between social versus non-social reward approach and consumption. Frontiers in Behavioral Neuroscience 15, 693698.

Stable individual differences in vocalisation and motor activity during acute stress in the domestic cat

The behavioural assessment of individual animals in stressful situations should consider measures which are consistent across repeated testing, and therefore truly representative of an individual's behaviour. Here we report a study conducted on 40 neutered adult cats (Felis silvestris catus)...

Year Published: 2019Topics: Vocalization, Welfare AssessmentAnimal Type: Cat

Citation: Urrutia, A., Martínez-Byer, S., Szenczi, P. et al. 2019. Stable individual differences in vocalisation and motor activity during acute stress in the domestic cat. Behavioural Processes 165, 58-65.

Emission of 22 kHz vocalizations in rats as an evolutionary equivalent of human crying: Relationship to depression

There is no clear relationship between crying and depression based on human neuropsychiatric observations. This situation originates from lack of suitable animal models of human crying. In the present article, an attempt will be made to answer the question whether...

Year Published: 2019Topics: Emotion, Pain, & Sentience, VocalizationAnimal Type: Rat, Rodent

Citation: Brudzynski, S. M. 2019. Emission of 22 kHz vocalizations in rats as an evolutionary equivalent of human crying: Relationship to depression. Behavioural Brain Research 363, 1-12.

Only when it feels good: Specific cat vocalizations other than meowing

Our objective was to identify and characterize the types of vocalization other than meowing (VOM) in two contexts, a pleasant and an aversive situation, and to study the effect of the sex of the animal. A total of 74 cats...

Year Published: 2019Topics: Emotion, Pain, & Sentience, Vocalization, Welfare AssessmentAnimal Type: Cat

Citation: Fermo, J. L., Schnaider, M. A., Silva, A. H. P. et al. 2019. Only when it feels good: Specific cat vocalizations other than meowing. Animals 9(11), 878.

Automatic classification of cat vocalizations emitted in different contexts

Cats employ vocalizations for communicating information, thus their sounds can carry a wide range of meanings. Concerning vocalization, an aspect of increasing relevance directly connected with the welfare of such animals is its emotional interpretation and the recognition of the...

Year Published: 2019Topics: VocalizationAnimal Type: Cat

Citation: Ntalampiras, S., Ludovico, L. A., Presti, G. et al. 2019. Automatic classification of cat vocalizations emitted in different contexts. Animals 9(8), 543.

Ultrasonic vocalisation as a measure of positive welfare in rats

Studies of animal welfare in laboratory animals have historically relied on the measurement of negative indicators rather than the assessment of positive indicators of welfare. Practical methods of welfare assessment are required to allow refinement of housing and experimental protocols....

Year Published: 2017Topics: Environmental Enrichment, Housing, VocalizationAnimal Type: Rat, Rodent

Citation: Jones, T., Robinson, M., Leach, M. et al. 2017. Ultrasonic vocalisation as a measure of positive welfare in rats. Animal Technology and Welfare 16(2), 127-129.

Vocal correlates of emotional reactivity within and across contexts in domestic pigs (Sus scrofa)

Vocalizations have long been recognized to encode information about an individual's emotional state and, as such, have contributed to the study of emotions in animals. However, the potential of vocalizations to also encode information about an individual's emotional reactivity has...

Year Published: 2017Topics: Vocalization, Welfare AssessmentAnimal Type: Pig

Citation: Leliveld, L. M. C., Düpjan, S., Tuchscherer, A. et al. 2017. Vocal correlates of emotional reactivity within and across contexts in domestic pigs (Sus scrofa). Physiology & Behavior 181, 117-126.

Specific 50-kHz vocalizations are tightly linked to particular types of behavior in juvenile rats anticipating play

Rat ultrasonic vocalizations have been suggested to be either a byproduct of physical movement or, in the case of 50-kHz calls, a means to communicate positive affect. Yet there are up to 14 distinct types of 50-kHz calls, raising issues...

Year Published: 2017Topics: VocalizationAnimal Type: Rat, Rodent

Citation: Burke, C. J., Kisko, T. M., Swiftwolfe, H. et al. 2017. Specific 50-kHz vocalizations are tightly linked to particular types of behavior in juvenile rats anticipating play. PLOS ONE 12(5), e0175841.

An unexpected acoustic indicator of positive emotions in horses

Indicators of positive emotions are still scarce and many proposed behavioural markers have proven ambiguous. Studies established a link between acoustic signals and emitter's internal state, but few related to positive emotions and still fewer considered non-vocal sounds. One of...

Year Published: 2018Topics: Vocalization, Welfare AssessmentAnimal Type: Equine

Citation: Stomp, M., Leroux, M., Cellier, M. et al. 2018. An unexpected acoustic indicator of positive emotions in horses. PLOS ONE 13(7), e0197898.