| Records |
| Author |
Sueur, J.; Aubin, T.; Simonis, C. |
| Title |
Seewave: a free modular tool for sound analysis and synthesis |
Type |
Journal Article |
| Year |
2008 |
Publication |
Bioacoustics |
Abbreviated Journal |
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| Volume |
18 |
Issue |
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Call Number  |
Equine Behaviour @ team @ Sueur2008 |
Serial |
6490 |
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| Author |
Baumgartner, T.; Heinrichs, M.; Vonlanthen, A.; Fischbacher, U.; Fehr, E. |
| Title |
Oxytocin Shapes the Neural Circuitry of Trust and Trust Adaptation in Humans |
Type |
Abstract |
| Year |
2008 |
Publication |
Neuron |
Abbreviated Journal |
Neuron |
| Volume |
58 |
Issue |
4 |
Pages |
639-650 |
| Keywords |
Sysneuro; Sysbio |
| Abstract |
Trust and betrayal of trust are ubiquitous in human societies. Recent behavioral evidence shows that the neuropeptide oxytocin increases trust among humans, thus offering a unique chance of gaining a deeper understanding of the neural mechanisms underlying trust and the adaptation to breach of trust. We examined the neural circuitry of trusting behavior by combining the intranasal, double-blind, administration of oxytocin with fMRI. We find that subjects in the oxytocin group show no change in their trusting behavior after they learned that their trust had been breached several times while subjects receiving placebo decrease their trust. This difference in trust adaptation is associated with a specific reduction in activation in the amygdala, the midbrain regions, and the dorsal striatum in subjects receiving oxytocin, suggesting that neural systems mediating fear processing (amygdala and midbrain regions) and behavioral adaptations to feedback information (dorsal striatum) modulate oxytocin's effect on trust. These findings may help to develop deeper insights into mental disorders such as social phobia and autism, which are characterized by persistent fear or avoidance of social interactions. |
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Cell Press, |
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0896-6273 |
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no |
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Equine Behaviour @ team @ S0896-6273(08)00327-9 DOI - 10.1016/j.neuron.2008.04.009 |
Serial |
5647 |
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| Author |
Richards, D.G.; Wiley, R.H. |
| Title |
Reverberations and Amplitude Fluctuations in the Propagation of Sound in a Forest: Implications for Animal Communication |
Type |
Journal Article |
| Year |
2008 |
Publication |
Am Nat |
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| Volume |
115 |
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no |
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Equine Behaviour @ team @ Richards2008 |
Serial |
6485 |
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| Author |
Langbein, J.; Siebert, K.; Nuernberg, G. |
| Title |
Concurrent recall of serially learned visual discrimination problems in dwarf goats (Capra hircus) |
Type |
Journal Article |
| Year |
2008 |
Publication |
Behav Proc |
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| Volume |
79 |
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no |
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Equine Behaviour @ team @ Langbein2008 |
Serial |
6363 |
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| Author |
Hoppitt, W.; Laland, K.N. |
| Title |
Social processes influencing learning in animals: a review of the evidence |
Type |
Journal Article |
| Year |
2008 |
Publication |
Adv Study Behav |
Abbreviated Journal |
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| Volume |
38 |
Issue |
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Pages |
105-165 |
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no |
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Equine Behaviour @ team @ Hoppitt2008 |
Serial |
6260 |
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| Author |
Dugnol, B.; Fernández, C.; Galiano, G.; Velasco, J. |
| Title |
On a chirplet transform-based method applied to separating and counting wolf howls |
Type |
Journal Article |
| Year |
2008 |
Publication |
Signal Process |
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88 |
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no |
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Equine Behaviour @ team @ Dugnol2008 |
Serial |
6466 |
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| Author |
Charif, R.A.; Waack, A.M.; Strickman, L.M. |
| Title |
Raven Pro 1.3 User's Manual |
Type |
Book Whole |
| Year |
2008 |
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Cornell Laboratory of Ornithology |
Place of Publication |
Ithaca, New York |
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no |
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Equine Behaviour @ team @ Charif2008 |
Serial |
6488 |
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| Author |
Romero, T.; Aureli, F. |
| Title |
Reciprocity of support in coatis (Nasua nasua) |
Type |
Journal Article |
| Year |
2008 |
Publication |
Journal of Comparative Psychology |
Abbreviated Journal |
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| Volume |
122 |
Issue |
1 |
Pages |
19-25 |
| Keywords |
*Animal Aggressive Behavior; *Animal Social Behavior; *Mammals; Reciprocity |
| Abstract |
Primate sociality has received much attention and its complexity has been viewed as a driving force for the evolution of cognitive abilities. Improved analytic techniques have allowed primate researchers to reveal intricate social networks based on the exchange of cooperative acts and services. Although nonprimates are known to show similar behavior (e.g., cooperative hunting, food sharing, coalitions) there seems a consensus that social life is less complex than in primates. Here the authors present the first group-level analysis of reciprocity of social interactions in a social carnivore, the ring-tailed coati (<xh:i xmlns:search=“http://marklogic.com/appservices/search” xmlns=“http://apa.org/pimain” xmlns:xsi=“http://www.w3.org/2001/XMLSchema-instance” xmlns:xh=“http://www.w3.org/1999/xhtml”>Nasua nasua</xh:i>). The authors found that support in aggressive conflicts is a common feature in coatis and that this behavior is reciprocally exchanged in a manner seemingly as complex as in primates. Given that reciprocity correlations persisted after controlling for the effect of spatial association and subunit membership, some level of scorekeeping may be involved. Further studies will be needed to confirm our findings and understand the mechanisms underlying such reciprocity, but our results contribute to the body of work that has begun to challenge primate supremacy in social complexity and cognition. (PsycINFO Database Record (c) 2012 APA, all rights reserved) |
| Address |
Romero, Teresa: Living Links, Yerkes National Primate Research Center, Emory University, 954 N. Gatewood Road, Atlanta, GA, US, 30329, mromer2@emory.edu |
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American Psychological Association |
Place of Publication |
Us |
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1939-2087(Electronic);0735-7036(Print) |
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no |
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Equine Behaviour @ team @ 2008-01944-003 |
Serial |
5812 |
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| Author |
Griffin, A.S. |
| Title |
Social learning in Indian mynahs, Acridotheres tristis: the role of distress calls |
Type |
Journal Article |
| Year |
2008 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
75 |
Issue |
1 |
Pages |
79-89 |
| Keywords |
Acridotheres tristis; distress vocalizations; head saccades; Indian mynah; predator avoidance learning; social learning |
| Abstract |
Socially acquired predator avoidance is a phenomenon in which individuals acquire an avoidance response towards an initially neutral stimulus after they have experienced it together with the antipredator signals of social companions. Earlier research has established that alarm calls used for intraspecific communication are effective stimuli for triggering acquisition. However, animals produce a large range of other antipredator responses that might engage antipredator learning. Here, I examine the effects of conspecific distress calls, a signal that is produced by birds when restrained by a predator, and that appears to be directed towards predators, rather than conspecifics, on predator avoidance learning in Indian mynahs, Acridotheres tristis. Distress calls reflect high levels of alarm in the caller and should, therefore, mediate robust learning. Experiment 1 revealed that subjects performed higher rates of head movements in response to a previously unfamiliar avian mount after it had been presented simultaneously with playbacks of conspecific distress vocalizations. Experiment 2 revealed that increased rates of head saccades resembled the spontaneous response evoked by a novel stimulus more closely than it resembled the response evoked by a perched raptor, suggesting that distress calls inculcated a visual exploratory response, rather than an antipredator response. While it is usually thought that the level of acquisition in learners follows a simple relationship with the level of alarm shown by demonstrators, the present results suggest that this relationship may be more complex. Antipredator signals with different functions may have differential effects on learners. |
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0003-3472 |
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no |
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Equine Behaviour @ team @ |
Serial |
4696 |
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| Author |
Pongrácz, P.; Vida, V.; Bánhegyi, P.; Miklósi, Á. |
| Title |
How does dominance rank status affect individual and social learning performance in the dog (Canis familiaris)? |
Type |
Journal Article |
| Year |
2008 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
11 |
Issue |
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Pages |
75-82 |
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| Abstract |
Dogs can learn effectively to detour around a V-shaped fence after observing a demonstration from either an unfamiliar human or dog demonstrator. We found earlier that there is substantial individual variation between the dogs' performance, even when using the same experimental conditions. Here, we investigate if the subjects' relative dominance rank with other dogs had an effect on their social learning performance. On the basis of the owners' answers to a questionnaire, subjects from multi-dog homes were sorted into groups of dominant and subordinate dogs. In Experiment 1, dominant and subordinate dogs were tested without demonstration and we did not find any difference between the groups-they had similarly low detour performances on their own. In Experiment 2 and 3, dogs from single dog and multi-dog households were tested in the detour task with demonstration by an unfamiliar dog, or human, respectively. The results showed that social learning performance of the single dogs fell between the dominant and subordinate multi-dogs with both dog and human demonstration. Subordinate dogs displayed significantly better performance after having observed a dog demonstrator in comparison to dominant dogs. In contrast, the performance of dominant and subordinate dogs was almost similar, when they observed a human demonstrator. These results suggest that perceived dominance rank in its own group has a strong effect on social learning in dogs, but this effect seems to depend also on the demonstrator species. This finding reveals an intricate organization of the social structure in multi-dog households, which can contribute to individual differences existing among dogs. |
| Address |
Department of Ethology, Eotvos Lorand University, Pazmany Peter setany 1/C, 1117, Budapest, Hungary, peter.celeste.pongracz@gmail.com |
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English |
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1435-9448 |
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| Notes |
PMID:17492317 |
Approved |
no |
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Equine Behaviour @ team @ |
Serial |
2400 |
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