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| Author |
Fox, N.A. |
| Title |
Temperament and early experience form social behavior |
Type |
Journal Article |
| Year |
2004 |
Publication  |
Annals of the New York Academy of Sciences |
Abbreviated Journal |
Ann N Y Acad Sci |
| Volume |
1038 |
Issue |
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Pages |
171-178 |
| Keywords |
Adult; Animals; Child; Child Behavior Disorders/physiopathology; Fear/physiology; Humans; Individuality; Infant; Learning/*physiology; *Personality Development; *Social Behavior; Temperament/*physiology |
| Abstract |
Individual differences in the way persons respond to stimulation can have important consequences for their ability to learn and their choice of vocation. Temperament is the study of such individual differences, being thought of as the behavioral style of an individual. Common to all approaches in the study of temperament are the notions that it can be identified in infancy, is fairly stable across development, and influences adult personality. We have identified a specific temperament type in infancy that involves heightened distress to novel and unfamiliar stimuli. Infants who exhibit this temperament are likely, as they get older, to display behavioral inhibition-wariness and heightened vigilance of the unfamiliar-particularly in social situations. Our work has also described the underlying biology of this temperament and has linked it to neural systems supporting fear responses in animals. Children displaying behavioral inhibition are at-risk for behavioral problems related to anxiety and social withdrawal. |
| Address |
Institute for Child Study, Department of Human Development, University of Maryland, 3304 Benjamin Building, College Park, MD 20742-1131, USA. nf4@umail.umd.edu |
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English |
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0077-8923 |
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| Notes |
PMID:15838111 |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4131 |
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| Author |
Uher, J.; Asendorpf, J.B.; Call, J. |
| Title |
Personality in the behaviour of great apes: temporal stability, cross-situational consistency and coherence in response |
Type |
Journal Article |
| Year |
2008 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
75 |
Issue |
1 |
Pages |
99-112 |
| Keywords |
behaviour prediction; bonobo; bottom-up approach; chimpanzee; gorilla; individual differences; orang-utan; personality; traits |
| Abstract |
Using a multidisciplinary approach, the present study complements ethological behaviour measurements with basic theoretical concepts, methods and approaches of the personality psychological trait paradigm. Its adoptability and usefulness for animal studies are tested exemplarily on a sample of 20 zoo-housed great apes (five of each of the following species): bonobos, Pan paniscus; chimpanzees, Pan troglodytes verus; gorillas, Gorilla gorilla gorilla; and orang-utans, Pongo pygmaeus abelii. Data on 76 single trait-relevant behaviours were recorded in a series of 14 laboratory-based situations and in two different group situations. Data collection was repeated completely after a break of 2 weeks within a 60-day period. All behaviour records were sufficiently reliable. Individual- and variable-oriented analyses showed high/substantial temporal stability on different levels of aggregation. Distinctive and stable individual situational and response profiles clarified the importance of situations and of multiple trait-relevant behaviours. The present study calls for a closer collaboration between behavioural biologists and personality psychologists to tap the full potential of animal personality research. |
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Equine Behaviour @ team @ |
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4278 |
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| Author |
Kurvers, R.H.J.M.; Eijkelenkamp, B.; van Oers, K.; van Lith, B.; van Wieren, S.E.; Ydenberg, R.C.; Prins, H.H.T. |
| Title |
Personality differences explain leadership in barnacle geese |
Type |
Journal Article |
| Year |
2009 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
78 |
Issue |
2 |
Pages |
447-453 |
| Keywords |
barnacle goose; boldness; Branta leucopsis; group behaviour; leadership; personality |
| Abstract |
Personality in animal behaviour describes the observation that behavioural differences between individuals are consistent over time and context. Studies of group-living animals show that movement order among individuals is also consistent over time and context, suggesting that some individuals lead and others follow. However, the relationship between leadership and personality traits is poorly studied. We measured several personality traits and leadership of individual barnacle geese, Branta leucopsis. We measured body size and scored the dominance of individuals living in a stable group situation before subjecting them to an open-field test, an activity test, a novel-object test, and a leadership test in which the order of the movement of individuals in pairs towards a feeding patch was scored. We found high repeatability for activity and novel-object scores over time. Leadership was strongly correlated with novel-object score but not with dominance rank, activity or exploration in an open field. These results provide evidence that leadership is closely related to some aspects of personality. Interestingly, an individual's arrival at the food patch was affected not only by the novel-object score of the focal individual, but also by the novel-object score of the companion individual, indicating that movement patterns of individuals living in groups are affected by the personality traits of other group members and suggesting that movement patterns of a group may be shaped by the mix of personality types present in the group. |
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0003-3472 |
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no |
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Equine Behaviour @ team @ |
Serial |
5172 |
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Bergvall, U.A.; Schäpers, A.; Kjellander, P.; Weiss, A. |
| Title |
Personality and foraging decisions in fallow deer, Dama dama |
Type |
Journal Article |
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Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
In Press, Corrected Proof |
Issue |
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Pages |
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| Keywords |
antipredator behaviour; boldness; Dama dama; dominance; fallow deer; foraging; novelty; personality |
| Abstract |
Recent studies have examined the ecological and evolutionary bases for variation in animal personality. However, only a few such studies have examined how foraging parameters are influenced by different personality domains. In wild ungulates, the trade-off between the time spent on food intake and antipredator behaviour differs between individuals, but the underlying reason for this is not yet well understood. One possibility is that this trade-off reflects personality dimensions such as boldness. To relate foraging decisions to personality we measured personality and performed feeding experiments with familiar and novel food in familiar and novel situations. We measured personality traits in 15 tame fallow deer, using novel object tests (NO), behavioural observations (BO) and personality ratings (PR). Boldness dimensions were found using PR and NO, dominance dimensions were found using BO and PR, and a flexibility dimension was found using BO. Multitrait-multimethod analysis showed that similar dimensions were significantly correlated across different methods and that different dimensions were not significantly correlated, even if measured using the same method. We also found that novel food eaten in familiar situations and familiar food eaten in novel situations were strongly related to boldness but not dominance, flexibility or age. Thus the trade-off between the benefits of gaining more food and the costs of reduced vigilance or increased toxin ingestion reflect boldness. These findings highlight the nature of personality dimensions in ungulates and how boldness impacts foraging behaviour. |
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0003-3472 |
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no |
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Equine Behaviour @ team @ |
Serial |
5278 |
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Riebli, T.; Avgan, B.; Bottini, A.-M.; Duc, C.; Taborsky, M.; Heg, D. |
| Title |
Behavioural type affects dominance and growth in staged encounters of cooperatively breeding cichlids |
Type |
Journal Article |
| Year |
2011 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
81 |
Issue |
1 |
Pages |
313-323 |
| Keywords |
behavioural syndrome; body condition; Neolamprologus pulcher; personality; reserves; strategic growth; submission |
| Abstract |
In animals, behavioural properties such as aggressive propensity are often consistent over a life span, and they may form part of a behavioural syndrome. We studied how aggressive propensity influences dominance, contest behaviour and growth in the cooperatively breeding cichlid fish Neolamprologus pulcher. We tested whether intrinsic aggressive propensity (1) influences dominance in paired contests, (2) causes different aggression levels in contests with partners matched for aggressive propensity compared to unmatched partners, and how it (3) affects growth rate in groups that were either matched or unmatched for aggressive propensity. Intrinsic aggressive propensity was first scored with a mirror test and classified as high, medium or low. Thereafter we tested fish with either high or low aggressive propensity with partners matched for size and either matched or unmatched for aggressive type in a paired contest for a shelter. We scored dominance, aggression and submission. As predicted, (1) dominance was more clearly established in unmatched than in matched contests and (2) individuals with high aggressive propensity launched more attacks overall than fish with low intrinsic aggressiveness, suggesting a higher propensity to escalate independently of winning or losing the paired contest. However, contrary to expectation, (3) individuals with low aggressiveness grew faster than aggressive ones in unmatched groups, whereas the opposite occurred in matched groups. This suggests that individuals with low aggressive propensity may benefit from conflict evasion, which might allow them to gain dominance in the future owing to larger body size. |
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0003-3472 |
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no |
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Equine Behaviour @ team @ |
Serial |
5319 |
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| Author |
Reddon, A.R.; Hurd, P.L. |
| Title |
Individual differences in cerebral lateralization are associated with shy-bold variation in the convict cichlid |
Type |
Journal Article |
| Year |
2009 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
77 |
Issue |
1 |
Pages |
189-193 |
| Keywords |
animal personality; Archocentrus nigrofasciatus; cerebral lateralization; convict cichlid; life history strategy; shy-bold continuum |
| Abstract |
Cerebral lateralization, the preferential use of one hemisphere of the brain to perform certain cognitive functions, is a widespread and evolutionarily ancient adaptation. Lateralization appears to enhance cognitive capacity, yet substantial individual variation in the strength cerebral lateralization is apparent in all species studied so far. It is puzzling that cerebral lateralization, a seemingly advantageous trait, has not been driven to fixation. It has been suggested that variation in lateralization may be linked to individual variation in behaviour, which itself may be subject to disruptive selection. We examined the relation between cerebral lateralization and individual variation in boldness in the convict cichlid, Archocentrus nigrofasciatus. We show that convict cichlids that are more strongly lateralized when exploring a familiar environment, but not a novel one, are quicker to emerge from a shelter in a test for boldness. The possibility that cerebral lateralization is linked to life history strategy is discussed. |
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0003-3472 |
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no |
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Equine Behaviour @ team @ |
Serial |
5373 |
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h:, M.; Lévy, F.; Fortin, M.; Leterrier, C.; LansadLansade, L. |
| Title |
Stress and temperament affect working memory performance for disappearing food in horses, Equus caballus |
Type |
Journal Article |
| Year |
2013 |
Publication |
Animal Behaviour |
Abbreviated Journal |
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| Volume |
86 |
Issue |
6 |
Pages |
1233-1240 |
| Keywords |
delayed-response task emotion; equid; Equus caballus; fearfulness; individual difference; personality; stress; temperament |
| Abstract |
In the present study, we sought to determine the influence of stress and temperament on working memory for disappearing food in horses. After assessment of five dimensions of temperament, we tested working memory of horses using a delayed-response task requiring a choice between two food locations. Delays ranging from 0 to 20 s were tested. The duration of working memory for disappearing food was first characterized without stressors (N = 26). The horses were then divided into two groups and their performance was assessed under stressful (exposure to acute stressors prior to testing, N = 12) or control conditions (N = 12). Results showed that the duration of working memory for disappearing food lasted at least 20 s under nonstressful conditions, and that under stressful conditions this duration lasted less than 12 s. This stress-induced impairment confirms in a nonrodent species that working memory performance is very sensitive to exposure to stressors. In addition, working memory performance in horses is influenced by the temperamental dimension of fearfulness according to the state of stress: fearful horses showed better performance under control conditions and worse performance under stressful conditions than nonfearful horses. These findings are discussed in the context of the Yerkes–Dodson law of stress and performance. |
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0003-3472 |
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no |
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Equine Behaviour @ team @ |
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5746 |
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Seyfarth, R.M.; Cheney, D.L. |
| Title |
Social cognition |
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Journal Article |
| Year |
2015 |
Publication |
Animal Behaviour |
Abbreviated Journal |
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| Volume |
103 |
Issue |
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Pages |
191-202 |
| Keywords |
evolution; fitness; future research; personality; selective pressure; skill; social cognition |
| Abstract |
The social intelligence hypothesis argues that competition and cooperation among individuals have shaped the evolution of cognition in animals. What do we mean by social cognition? Here we suggest that the building blocks of social cognition are a suite of skills, ordered roughly according to the cognitive demands they place upon individuals. These skills allow an animal to recognize others by various means; to recognize and remember other animals' relationships; and, perhaps, to attribute mental states to them. Some skills are elementary and virtually ubiquitous in the animal kingdom; others are more limited in their taxonomic distribution. We treat these skills as the targets of selection, and assume that more complex levels of social cognition evolve only when simpler methods are inadequate. As a result, more complex levels of social cognition indicate greater selective pressures in the past. The presence of each skill can be tested directly through field observations and experiments. In addition, the same methods that have been used to compare social cognition across species can also be used to measure individual differences within species and to test the hypothesis that individual differences in social cognition are linked to differences in reproductive success. |
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0003-3472 |
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Equine Behaviour @ team @ |
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6025 |
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Amici, F.; Widdig, A.; Lehmann, J.; Majolo, B. |
| Title |
A meta-analysis of interindividual differences in innovation |
Type |
Journal Article |
| Year |
2019 |
Publication |
Animal Behaviour |
Abbreviated Journal |
Anim. Behav. |
| Volume |
155 |
Issue |
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Pages |
257-268 |
| Keywords |
age; bad competitor hypothesis; excess of energy hypothesis; innovation; interindividual differences; intraspecific variation; personality; rank; sex |
| Abstract |
The ability to innovate and the social transmission of innovations have played a central role in human evolution. However, innovation is also crucial for other animals, by allowing them to cope with novel socioecological challenges. Although innovation plays such a central role in animals' lives, we still do not know the conditions required for innovative behaviour to emerge. Here, we focused on interindividual differences in innovation by (1) extensively reviewing existing literature on innovative behaviour in animals and (2) quantitatively testing the different evolutionary hypotheses that have been proposed to explain interindividual variation in innovation propensity during foraging tasks. We ran a series of phylogenetically controlled mixed-effects meta-regression models to determine which hypotheses (if any) are supported by currently available empirical studies. Our analyses show that innovation is more common in individuals that are older and belong to the larger sex, but also in more neophilic and/or explorative individuals. Moreover, these effects change depending on the study setting (i.e. wild versus captive). Our results provide no clear support to the excess of energy or the bad competitor hypotheses and suggest that study setting and interindividual differences in traits related to personality are also important predictors of innovation. |
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0003-3472 |
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Equine Behaviour @ team @ |
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6589 |
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Capitanio, J.P.; Widaman, K.F. |
| Title |
Confirmatory factor analysis of personality structure in adult male rhesus monkeys (Macaca mulatta) |
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Journal Article |
| Year |
2005 |
Publication |
American journal of primatology |
Abbreviated Journal |
Am. J. Primatol. |
| Volume |
65 |
Issue |
3 |
Pages |
289-294 |
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Animals; *Behavior, Animal; Macaca mulatta/*psychology; Male; *Personality; Psychometrics; Social Behavior |
| Abstract |
Reports from different laboratories have suggested that nonhuman primates have somewhat similar dimensions of personality. To date, however, no attempts have been made to statistically replicate a specific factor structure. In the present report, two independent observers recorded the behavior of 58 adult male rhesus monkeys, and then rated the animals with the use of a 50-item personality instrument. A confirmatory factor analysis (CFA) of the ratings resulted in the replication of a previously described four-factor personality structure [Maninger et al., American Journal of Primatology 61:73-83, 2003]. The first two dimensions-Sociability and Confidence-showed strong loadings and are similar to Affiliation and Agency dimensions in humans. The remaining dimensions-Equability and Irritability-were less clear, and it is possible that additional traits will have to be identified before a more robust structure can be established for these dimensions. |
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Department of Psychology, University of California-Davis, Davis, California 95616, USA. jpcapitanio@ucdavis.edu |
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0275-2565 |
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PMID:15772988 |
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Equine Behaviour @ team @ |
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4111 |
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