9 results on '"Lisette M. C. Leliveld"'
Search Results
2. Classification of pig calls produced from birth to slaughter according to their emotional valence and context of production
- Author
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Elodie F. Briefer, Ciara C.-R. Sypherd, Pavel Linhart, Lisette M. C. Leliveld, Monica Padilla de la Torre, Eva R. Read, Carole Guérin, Véronique Deiss, Chloé Monestier, Jeppe H. Rasmussen, Marek Špinka, Sandra Düpjan, Alain Boissy, Andrew M. Janczak, Edna Hillmann, and Céline Tallet more...
- Subjects
Medicine ,Science - Abstract
Abstract Vocal expression of emotions has been observed across species and could provide a non-invasive and reliable means to assess animal emotions. We investigated if pig vocal indicators of emotions revealed in previous studies are valid across call types and contexts, and could potentially be used to develop an automated emotion monitoring tool. We performed an analysis of an extensive and unique dataset of low (LF) and high frequency (HF) calls emitted by pigs across numerous commercial contexts from birth to slaughter (7414 calls from 411 pigs). Our results revealed that the valence attributed to the contexts of production (positive versus negative) affected all investigated parameters in both LF and HF. Similarly, the context category affected all parameters. We then tested two different automated methods for call classification; a neural network revealed much higher classification accuracy compared to a permuted discriminant function analysis (pDFA), both for the valence (neural network: 91.5%; pDFA analysis weighted average across LF and HF (cross-classified): 61.7% with a chance level at 50.5%) and context (neural network: 81.5%; pDFA analysis weighted average across LF and HF (cross-classified): 19.4% with a chance level at 14.3%). These results suggest that an automated recognition system can be developed to monitor pig welfare on-farm. more...
- Published
- 2022
- Full Text
- View/download PDF
Catalog
3. Hemispheric Specialization for Processing the Communicative and Emotional Content of Vocal Communication in a Social Mammal, the Domestic Pig
- Author
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Lisette M. C. Leliveld, Sandra Düpjan, Armin Tuchscherer, and Birger Puppe
- Subjects
acoustic communication ,conspecific calls ,ear preference ,hemispheric asymmetry ,orienting bias ,domestic pig ,Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
In humans, speech perception is lateralized, with the left hemisphere of the brain dominant in processing the communicative content and the right hemisphere dominant in processing the emotional content. However, still little is known about such a division of tasks in other species. We therefore investigated lateralized processing of communicative and emotionally relevant calls in a social mammal, the pig (Sus scrofa). Based on the contralateral connection between ears and hemispheres, we compared the behavioural and cardiac responses of 36 young male pigs during binaural and monaural (left or right) playback to the same sounds. The playback stimuli were calls of social isolation and physical restraint, whose communicative and emotional relevance, respectively, were validated prior to the test by acoustic analyses and during binaural playbacks. There were indications of lateralized processing mainly in the initial detection (left head-turn bias, indicating right hemispheric dominance) of the more emotionally relevant restraint calls. Conversely, there were indications of lateralized processing only in the appraisal (increased attention during playback to the right ear) of the more communicative relevant isolation calls. This implies differential involvement of the hemispheres in the auditory processing of vocalizations in pigs and thereby hints at similarities in the auditory processing of vocal communication in non-human animals and speech in humans. Therefore, these findings provide interesting new insight in the evolution of human language and auditory lateralization. more...
- Published
- 2020
- Full Text
- View/download PDF
4. Dairy Cow Behavior Is Affected by Period, Time of Day and Housing
- Author
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Lisette M. C. Leliveld, Elisabetta Riva, Gabriele Mattachini, Alberto Finzi, Daniela Lovarelli, and Giorgio Provolo
- Subjects
dairy cattle ,heat stress ,accelerometers ,barn microclimate ,Veterinary medicine ,SF600-1100 ,Zoology ,QL1-991 - Abstract
Dairy cow behavior is affected by external and endogenous factors, including time of year, barn microclimate, time of day and housing. However, little is known about the combined effects of these factors. Data were collected on eight farms in Northern Italy during summer, winter and a temperate season. The temperature-humidity index (THI) was recorded using environmental sensors, whereas cow behavior was monitored using leg accelerometers and cameras. Period, time of day and their interaction all significantly affected lying, standing and feeding behavior. However, although THI had a significant negative effect on lying and a positive effect on standing during daytime (all p < 0.001), during nighttime, it only had a significant negative effect on lying duration and mean lying bout duration (p < 0.001 for both). There was also significant variation between farms in all behavioral parameters, as well as interactions with period and time of day. For instance, farm differences in lying duration were more pronounced during daytime than during nighttime. These findings show how housing can interact with other factors, such as period of the year and time of day, and illustrate the influence of barn structure and farm management on cow behavior and, consequently, their welfare. more...
- Published
- 2022
- Full Text
- View/download PDF
5. From Science to Practice: A Review of Laterality Research on Ungulate Livestock
- Author
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Lisette M. C. Leliveld
- Subjects
hemispheric asymmetries ,farm animals ,emotional processing ,animal cognition ,development ,human-animal interactions ,animal welfare ,Mathematics ,QA1-939 - Abstract
In functional laterality research, most ungulate livestock species have until recently been mainly overlooked. However, there are many scientific and practical benefits of studying laterality in ungulate livestock. As social, precocial and domestic species, they may offer insight into the mechanisms involved in the ontogeny and phylogeny of functional laterality and help to better understand the role of laterality in animal welfare. Until now, most studies on ungulate livestock have focused on motor laterality, but interest in other lateralized functions, e.g., cognition and emotions, is growing. Increasingly more studies are also focused on associations with age, sex, personality, health, stress, production and performance. Although the full potential of research on laterality in ungulate livestock is not yet exploited, findings have already shed new light on central issues in cognitive and emotional processing and laid the basis for potentially useful applications in future practice, e.g., stress reduction during human-animal interactions and improved assessments of health, production and welfare. Future research would benefit from further integration of basic laterality methodology (e.g., testing for individual preferences) and applied ethological approaches (e.g., established emotionality tests), which would not only improve our understanding of functional laterality but also benefit the assessment of animal welfare. more...
- Published
- 2019
- Full Text
- View/download PDF
6. Real-time automatic integrated monitoring of barn environment and dairy cattle behaviour: Technical implementation and evaluation on three commercial farms.
- Author
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Lisette M. C. Leliveld, Carlo Brandolese, Matteo Grotto, Augusto Marinucci, Nicola Fossati, Daniela Lovarelli, Elisabetta Riva, and Giorgio Provolo
- Published
- 2024
- Full Text
- View/download PDF
7. Dairy Cow Behavior Is Affected by Period, Time of Day and Housing
- Author
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Provolo, Lisette M. C. Leliveld, Elisabetta Riva, Gabriele Mattachini, Alberto Finzi, Daniela Lovarelli, and Giorgio
- Subjects
dairy cattle ,heat stress ,accelerometers ,barn microclimate - Abstract
Dairy cow behavior is affected by external and endogenous factors, including time of year, barn microclimate, time of day and housing. However, little is known about the combined effects of these factors. Data were collected on eight farms in Northern Italy during summer, winter and a temperate season. The temperature-humidity index (THI) was recorded using environmental sensors, whereas cow behavior was monitored using leg accelerometers and cameras. Period, time of day and their interaction all significantly affected lying, standing and feeding behavior. However, although THI had a significant negative effect on lying and a positive effect on standing during daytime (all p < 0.001), during nighttime, it only had a significant negative effect on lying duration and mean lying bout duration (p < 0.001 for both). There was also significant variation between farms in all behavioral parameters, as well as interactions with period and time of day. For instance, farm differences in lying duration were more pronounced during daytime than during nighttime. These findings show how housing can interact with other factors, such as period of the year and time of day, and illustrate the influence of barn structure and farm management on cow behavior and, consequently, their welfare. more...
- Published
- 2022
- Full Text
- View/download PDF
8. Classification of pig calls produced from birth to slaughter according to their emotional valence and context of production
- Author
-
Elodie F, Briefer, Ciara C-R, Sypherd, Pavel, Linhart, Lisette M C, Leliveld, Monica, Padilla de la Torre, Eva R, Read, Carole, Guérin, Véronique, Deiss, Chloé, Monestier, Jeppe H, Rasmussen, Marek, Špinka, Sandra, Düpjan, Alain, Boissy, Andrew M, Janczak, Edna, Hillmann, and Céline, Tallet more...
- Subjects
Farms ,Pregnancy ,Swine ,Emotions ,Parturition ,Animals ,Discriminant Analysis ,Female ,Vocalization, Animal - Abstract
Vocal expression of emotions has been observed across species and could provide a non-invasive and reliable means to assess animal emotions. We investigated if pig vocal indicators of emotions revealed in previous studies are valid across call types and contexts, and could potentially be used to develop an automated emotion monitoring tool. We performed an analysis of an extensive and unique dataset of low (LF) and high frequency (HF) calls emitted by pigs across numerous commercial contexts from birth to slaughter (7414 calls from 411 pigs). Our results revealed that the valence attributed to the contexts of production (positive versus negative) affected all investigated parameters in both LF and HF. Similarly, the context category affected all parameters. We then tested two different automated methods for call classification; a neural network revealed much higher classification accuracy compared to a permuted discriminant function analysis (pDFA), both for the valence (neural network: 91.5%; pDFA analysis weighted average across LF and HF (cross-classified): 61.7% with a chance level at 50.5%) and context (neural network: 81.5%; pDFA analysis weighted average across LF and HF (cross-classified): 19.4% with a chance level at 14.3%). These results suggest that an automated recognition system can be developed to monitor pig welfare on-farm. more...
- Published
- 2021
9. Effects of caller characteristics on auditory laterality in an early primate (Microcebus murinus).
- Author
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Lisette M C Leliveld, Marina Scheumann, and Elke Zimmermann
- Subjects
Medicine ,Science - Abstract
BACKGROUND: Auditory laterality is suggested to be characterized by a left hemisphere dominance for the processing of conspecific communication. Nevertheless, there are indications that auditory laterality can also be affected by communicative significance, emotional valence and social recognition. METHODOLOGY/PRINCIPAL FINDINGS: In order to gain insight into the effects of caller characteristics on auditory laterality in the early primate brain, 17 gray mouse lemurs were tested in a head turn paradigm. The head turn paradigm was established to examine potential functional hemispheric asymmetries on the behavioral level. Subjects were presented with playbacks of two conspecific call types (tsak calls and trill calls) from senders differing in familiarity (unfamiliar vs. familiar) and sex (same sex vs. other sex). Based on the head turn direction towards these calls, evidence was found for a right ear/left hemisphere dominance for the processing of calls of the other sex (Binomial test: p = 0.021, N = 10). Familiarity had no effect on the orientation biases. CONCLUSIONS/SIGNIFICANCE: The findings in this study support the growing consensus that auditory laterality is not only determined by the acoustic processing of conspecific communication, but also by other factors like the sex of the sender. more...
- Published
- 2010
- Full Text
- View/download PDF
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