Animal Behaviour, Journal Year: 2024, Volume and Issue: 219, P. 122997 - 122997
Published: Nov. 8, 2024
Language: Английский
Animal Behaviour, Journal Year: 2025, Volume and Issue: 223, P. 123183 - 123183
Published: April 18, 2025
Language: Английский
Citations
0
American Journal of Primatology, Journal Year: 2023, Volume and Issue: 85(7)
Published: May 10, 2023
The structure and functioning of the brain are lateralized-the right hemisphere processes unexpected stimuli controls spontaneous behavior, while left deals with familiar routine responses. Hemispheric dominance, predisposition an individual using one over other, may lead to behavioral differences; particularly, be programed act in a certain way concerning hemispheric dominance. Hand preference is robust estimator dominance primates, as each opposing side body. Studies have found links between hand exhibition behaviors contexts such exploring manipulating objects. However, little known whether predicts variations other ecologically relevant like predation. We investigated relationship responses two types predator models captive Barbary macaques (Macaca sylvanus) (n = 22). Besides, nonpredator novel object was included control. 91% lateralized no group-level bias. A higher rate tension focus (behavioral response) behavior than condition. Unlike their right-hand counterparts, individuals strong left-hand elicited frequent toward models. Additionally, response varied type. also interaction effect Our study suggests that can reliably predict context potential While these results consistent function, indicating lateralization neural mechanism variation, type elucidates importance context-specificity when investigating laterality noninvasively. Future research on nonhuman primates current framework provide insights into evolution underlying predispositions.
Language: Английский
Citations
8
Royal Society Open Science, Journal Year: 2022, Volume and Issue: 9(10)
Published: Oct. 1, 2022
The proximate mechanisms underlying animal personalities, i.e. consistent inter-individual differences in behaviour, are a matter of discussion. Brain lateralization, expressed as the preferred use contralateral limb, has been suggested one these mechanisms. In this study, we measured proxy brain lateralization captive common marmosets ( N = 28) by testing hand preference simple food-reaching task and evaluated personality coding wide range behaviours observed daily situations. We explored links between both direction strength preference, well age sex, using linear models. Principal component analysis revealed that stable behavioural variables were organized three dimensions: Agreeableness, Extraversion Neuroticism. Regarding 14 individuals left-handed, seven right-handed ambilateral. Contrary to our predictions, did not find any relationship scores or sex. Instead, was significant predictor scores, with older being more agreeable less extraverted. link seems be equivocal dependent on assessment methods. Further examinations other mechanisms, such physiology (epi)genetics, may elucidate what drives variation marmosets.
Language: Английский
Citations
9
Symmetry, Journal Year: 2023, Volume and Issue: 15(4), P. 926 - 926
Published: April 16, 2023
Hand preference in non-human primates has been studied extensively with the aim of understanding evolution hemispheric asymmetry and hand preferences humans. However, focus on expressed adulthood, a surprising lack studies infants changes that occur during development other, potentially associated, asymmetries brain behaviour. This paper reports for grasping food taking it to mouth common marmosets. It considers other types behaviour, such as head cocking anogenital licking, parallel might influence first months life. then discusses behavioural differences between left- right-handed adult marmosets, including response novel stimuli, social behaviour cognitive bias. The need study together these expressions function is highlighted. question be addressed by empirical whether downstream manifestation sensory processing cognition, or instrumental functional hemispheres. Comparison made paw associated non-primate species.
Language: Английский
Citations
5
bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown
Published: June 25, 2024
Friendships, exhibited by both humans and non-human animals, have considerable adaptive benefits. In humans, similarity or homophily in personality is considered a proximate mechanism driving friendships, yet little known about the behavioural ′decision rules′ underlying animal friendships. Some empirical research suggests that friendships can be driven homophily. However, these studies are restricted to primates, limiting our understanding of mechanisms We investigated feral population water buffalo ( Bubalus bubalis ) determine whether drives this ′non-model′ social species free-ranging environmental conditions. conducted observations on females (n=30) assessed their personalities. Close spatial proximity served as indicator friendship, validated affiliative body contact. An objective ′bottom-up′ method revealed three traits – tension , vigilance general dominance . found with comparatively lower differences significantly higher close associations. did not find an effect kinship Our findings show form based homophily, decision rule attributed predominantly primates. discuss light socioecology but emphasise implications broader evolutionary context personalities
Language: Английский
Citations
1
Animal Behaviour, Journal Year: 2023, Volume and Issue: 208, P. 31 - 40
Published: Dec. 22, 2023
Evidence is accumulating that foraging behaviour and diet link to personality traits, yet little known about how these associations emerge during development. Behaviour expected become more consistent with age experience. We compared exploratory variances of juvenile adult red knots, Calidris canutus islandica, shortly after migration marine intertidal mudflats from terrestrial tundra breeding grounds. By identifying the timing switch isotopic signatures, we were also able ask whether juveniles arrived earlier, thus had longer experiences in a particular environment (nonbreeding grounds), exploration behaviour. found diverse less repeatable their than adults. This change repeatability was largely driven by greater within-individual behavioural variance The amount time experienced did not affect variation behaviour, suggesting consistency developed over period 4 weeks our study. Our findings suggest initial novel habitat, likely try out techniques which later develop into behaviours differ between individuals. study illuminates can experience free-living animal.
Language: Английский
Citations
3
bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown
Published: Jan. 8, 2023
Abstract The structure and functioning of the brain are lateralized – right hemisphere processes unexpected stimuli controls spontaneous behavior, while left deals with familiar routine responses. Hemispheric dominance, predisposition an individual using one over other, may lead to behavioral differences; particularly, be programmed act in a certain way concerning hemispheric dominance. Hand preference is robust estimator dominance primates, as each opposing side body. Studies have found links between hand exhibition different behaviors contexts such exploring manipulating objects. However, little known about whether can predict variations other ecologically relevant like, for example, predation. We investigated relationship responses two types predator models captive Barbary macaques ( Macaca sylvanus ) (n=22). was determined by observing unimanual foraging, whereas focus tension were quantified during experimental exposure models. 91% no group-level bias. In contrast their right-hand counterparts, individuals strong left-hand elicited frequent behavior. Additionally, response varied type. also interaction effect Our study suggests that reliably context potential While these results consistent function, indicating lateralization neural mechanism variation, type elucidates importance context-specificity when investigating laterality non-invasively. Future research on non-human primates current framework shed light evolution underlying predispositions.
Language: Английский
Citations
1
Animal Behaviour, Journal Year: 2024, Volume and Issue: 214, P. 43 - 54
Published: June 18, 2024
Language: Английский
Citations
0
Animal Behaviour, Journal Year: 2024, Volume and Issue: 219, P. 122997 - 122997
Published: Nov. 8, 2024
Language: Английский
Citations
0