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Author |
Horner, V.; Whiten, A.; Flynn, E.; de Waal, F.B.M. |
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Title |
Faithful replication of foraging techniques along cultural transmission chains by chimpanzees and children |
Type |
Journal Article |
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Year |
2006 |
Publication |
Proceedings of the National Academy of Sciences of the United States of America |
Abbreviated Journal |
Proc. Natl. Acad. Sci. U.S.A. |
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Volume  |
103 |
Issue |
37 |
Pages |
13878-13883 |
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Keywords |
Animals; Child, Preschool; Humans; *Imitative Behavior; Pan troglodytes/*psychology |
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Abstract |
Observational studies of wild chimpanzees (Pan troglodytes) have revealed population-specific differences in behavior, thought to represent cultural variation. Field studies have also reported behaviors indicative of cultural learning, such as close observation of adult skills by infants, and the use of similar foraging techniques within a population over many generations. Although experimental studies have shown that chimpanzees are able to learn complex behaviors by observation, it is unclear how closely these studies simulate the learning environment found in the wild. In the present study we have used a diffusion chain paradigm, whereby a behavior is passed from one individual to the next in a linear sequence in an attempt to simulate intergenerational transmission of a foraging skill. Using a powerful three-group, two-action methodology, we found that alternative methods used to obtain food from a foraging device (“lift door” versus “slide door”) were accurately transmitted along two chains of six and five chimpanzees, respectively, such that the last chimpanzee in the chain used the same method as the original trained model. The fidelity of transmission within each chain is remarkable given that several individuals in the no-model control group were able to discover either method by individual exploration. A comparative study with human children revealed similar results. This study is the first to experimentally demonstrate the linear transmission of alternative foraging techniques by non-human primates. Our results show that chimpanzees have a capacity to sustain local traditions across multiple simulated generations. |
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Centre for Social Learning and Cognitive Evolution, School of Psychology, University of St. Andrews, Fife KY16 9JP, United Kingdom |
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0027-8424 |
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PMID:16938863 |
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no |
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Call Number |
refbase @ user @ |
Serial |
159 |
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Author |
Ziegler, W.H. |
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Title |
[Endocrinological studies in arterial hypertension. Search for phaeochromocytoma] |
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Journal Article |
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Year |
1976 |
Publication |
Schweizerische Medizinische Wochenschrift |
Abbreviated Journal |
Schweiz Med Wochenschr |
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Volume |
106 |
Issue |
34 |
Pages |
1148-1150 |
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Keywords |
Angiography; Blood Volume; Catecholamines/urine; Glucagon/diagnostic use; Histamine/diagnostic use; Humans; Hydrogen-Ion Concentration; Hypertension/*etiology; Methods; Pheochromocytoma/*complications/diagnosis; Tyramine/diagnostic use |
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Abstract |
Elevated urinary catecholamines and their metabolites are the only findings which confirm the presence of pheochromocytoma. This examination is of particular interest if carried out in urine produced after spontaneous hypertensive episodes. Pharmacologic tests when carried out under standard conditions have proven to be a reliable aid in cases of suspected pheochromocytoma. Roentgenographic studies, determination of local plasma catecholamine concentrations and blood volume control should be undertaken in these patients before surgical procedure. |
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German |
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Original Title |
Endokrinologische Untersuchungen bei arterieller Hypertonie. Suche nach Phaochromozytom |
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0036-7672 |
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PMID:12561 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4047 |
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Author |
Bermudez, J.L. |
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Title |
The moral significance of birth |
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Journal Article |
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Year |
1996 |
Publication |
Ethics |
Abbreviated Journal |
Ethics |
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Volume |
106 |
Issue |
2 |
Pages |
378-403 |
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Keywords |
Abortion, Induced; Animal Rights; Animals; Beginning of Human Life; Embryonic and Fetal Development; *Ethical Analysis; *Ethics; *Fetus; Homicide; Humans; *Individuality; *Infant, Newborn; Infant, Premature; Infanticide; *Labor, Obstetric; Life; *Personhood; Philosophy; Primates; Psychology; *Self Concept; *Value of Life; Analytical Approach; Genetics and Reproduction; Philosophical Approach |
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0014-1704 |
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PMID:11656645; KIE: 31 fn.; KIE: KIE BoB Subject Heading: fetuses; KIE: KIE BoB Subject Heading: personhood |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4177 |
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Author |
Pollmann, U. |
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Title |
[Keeping of horses in circus and show businesses] |
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Journal Article |
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Year |
2002 |
Publication |
DTW. Deutsche Tierarztliche Wochenschrift |
Abbreviated Journal |
Dtsch Tierarztl Wochenschr |
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Volume |
109 |
Issue |
3 |
Pages |
126-129 |
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Keywords |
Animal Husbandry/*methods; *Animal Welfare; Animals; Behavior, Animal; *Horses; *Housing, Animal; Humans; Reward |
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Abstract |
The conditions under which horses are kept and the performance of acts in the circus ring may give rise to animal protection-relevant aspects for circus and show horses. A number of intolerable conditions under which horses are kept and procedures adopted for the work with circus and show horses are described. In addition, attention is drawn to monitoring methods capable of exposing the deplorable shortcomings of these businesses. |
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Address |
Fachbereich Ethologie und Tierschutz des Chemischen und Veterinaruntersuchungsamtes Freiburg. Ursula.Pollmann@cvuafr.bwl.de |
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German |
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Original Title |
Pferdehaltung in Zirkus- und Schaustellerbetrieben |
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0341-6593 |
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Notes |
PMID:11963363 |
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no |
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Call Number |
refbase @ user @ |
Serial |
1914 |
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Author |
Whiten, A.; Custance, D.M.; Gomez, J.C.; Teixidor, P.; Bard, K.A. |
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Title |
Imitative learning of artificial fruit processing in children (Homo sapiens) and chimpanzees (Pan troglodytes) |
Type |
Journal Article |
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Year |
1996 |
Publication |
Journal of comparative psychology (Washington, D.C. : 1983) |
Abbreviated Journal |
J Comp Psychol |
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Volume |
110 |
Issue |
1 |
Pages |
3-14 |
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Keywords |
Animals; Child, Preschool; Discrimination Learning; Female; Food Preferences/*psychology; *Fruit; Humans; *Imitative Behavior; Male; Mental Recall; Pan troglodytes/*psychology; Social Environment |
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Abstract |
Observational learning in chimpanzees and young children was investigated using an artificial fruit designed as an analog of natural foraging problems faced by primates. Each of 3 principal components could be removed in 2 alternative ways, demonstration of only one of which was watched by each subject. This permitted subsequent imitation by subjects to be distinguished from stimulus enhancement. Children aged 2-4 years evidenced imitation for 2 components, but also achieved demonstrated outcomes through their own techniques. Chimpanzees relied even more on their own techniques, but they did imitate elements of 1 component of the task. To our knowledge, this is the first experimental evidence of chimpanzee imitation in a functional task designed to simulate foraging behavior hypothesized to be transmitted culturally in the wild. |
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Scottish Primate Research Group, University of St. Andrews, Fife, Scotland. aw2@st-andrews.ac.uk |
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ISSN |
0735-7036 |
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Notes |
PMID:8851548 |
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no |
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Call Number |
refbase @ user @ |
Serial |
744 |
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Author |
Lonon, A.M.; Zentall, T.R. |
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Title |
Transfer of value from S+ to S- in simultaneous discriminations in humans |
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Journal Article |
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Year |
1999 |
Publication |
The American journal of psychology |
Abbreviated Journal |
Am J Psychol |
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Volume |
112 |
Issue |
1 |
Pages |
21-39 |
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Keywords |
Adolescent; Adult; Animals; Color Perception; Columbidae; Conditioning, Classical; *Discrimination Learning; Female; Humans; Male; Middle Aged; *Motivation; Orientation; Pattern Recognition, Visual; Psychomotor Performance; Reaction Time; *Transfer (Psychology) |
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Abstract |
When animals learn a simultaneous discrimination, some of the value of the positive stimulus (S+) appears to transfer to the negative stimulus (S-). The present experiments demonstrate that such value transfer can also be found in humans. In Experiment 1 humans were trained on 2 simple simultaneous discriminations, the first between a highly positive stimulus, A (1,000 points); and a negative stimulus, B (0 points); and the second between a less positive stimulus, C (100 points); and a negative stimulus, D (0 points). On test trials, most participants preferred B over D. In Experiments 2 and 3 the value of the 2 original discriminations was equated in training (A[100]B[0] and C[100]D[0]). In Experiment 2 the values of the positive stimuli were then altered (A[1,000]C[0]); again, most participants preferred B over D. In Experiment 3, however, when the values of B and D were altered (B[1,000]D[0]), participants were indifferent to A and C. Thus, the mechanism that underlies value transfer in humans appears to be related to Pavlovian second-order conditioning. Similar mechanisms may be involved in assimilation processes in social contexts. |
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Address |
University of Kentucky, USA |
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English |
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ISSN |
0002-9556 |
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Notes |
PMID:10696277 |
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no |
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Call Number |
refbase @ user @ |
Serial |
249 |
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Author |
Meyer, W.; Pakur, M. |
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Title |
[Remarks on the domestic dog as an object of instruction for the education of the developing child] |
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Journal Article |
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Year |
1999 |
Publication |
Berliner und Munchener Tierarztliche Wochenschrift |
Abbreviated Journal |
Berl Munch Tierarztl Wochenschr |
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Volume |
112 |
Issue |
4 |
Pages |
131-138 |
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Keywords |
Animals; Animals, Domestic; *Bonding, Human-Pet; Character; Child; *Child Development; Child, Preschool; Cognition; *Dogs; Emotions; Empathy; Humans |
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Abstract |
Based on an intensive analysis of literature, the study summarizes problems involved in the significance of domesticated dogs as objects of instruction and assistants of the education of children. Several important topics are discussed in view of advances for children in families keeping dogs. Such topics are mainly related to a general socio-emotional level, the support of cognitive development and character formation. Further aspects are the acquisition of a sense of responsibility, and the development of self-confidence, a sense of social membership and security, as well as important attributes of character such as frankness, broad mindedness, and sympathetic understanding. Moreover, knowledge about the life cycle and functions of body organs can be conveyed, and the dog could, at least in part, substitute for brothers and sisters. Basically, positive attitudes towards animals in general, as well as nature and environment are supported. All topics are critically commented and considered to be realistic or not. The supporting role of parents, in particular, is emphasized. Parental commitment should include deep concern with the typical attributes of the dog breed desired, and optimal dog keeping conditions to prevent harm to the children. The final commentary lays special emphasis on negative features of domestication for a pet owner, and cautions against non-biological and illusionary ideas about domesticated animals. |
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Anatomisches Institut der Tierakztlichen Hochschule Hannover |
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German |
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Original Title |
Bemerkungen zum Haushund als Lehrobjekt und Erziehungshilfe fur das sich entwickelnde Kind |
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0005-9366 |
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PMID:10337055 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4155 |
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Author |
Gosling, S.D. |
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Title |
Personality dimensions in spotted hyenas (Crocuta crocuta) |
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Journal Article |
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Year |
1998 |
Publication |
Journal of Comparative Psychology (Washington, D.C. : 1983) |
Abbreviated Journal |
J Comp Psychol |
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Volume |
112 |
Issue |
2 |
Pages |
107-118 |
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Keywords |
Animals; Carnivora/*psychology; Female; Humans; Male; *Personality; Personality Assessment/statistics & numerical data; Psychometrics; Reproducibility of Results; Species Specificity; Temperament |
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Abstract |
Personality ratings of 34 spotted hyenas (Crocuta crocuta) were made by 4 observers who knew the animals well. Analyses suggest that (a) hyena personality traits were rated with generally high reliability; (b) 5 broad dimensions (Assertiveness, Excitability, Human-Directed Agreeableness, Sociability, and Curiosity) captured about 75% of the total variance; (c) this dimensional structure could not be explained in terms of dominance status, sex, age, or appearance; and (d) as expected, female hyenas were more assertive than male hyenas. Comparisons with previous research provide evidence for the cross-species generality of Excitability, Sociability, and especially Assertiveness. Discussion focuses on methodological issues in research on animal personality and on the potential contributions this research can make for understanding the biological and environmental bases of personality. |
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Department of Psychology, University of California, Berkeley 94720-1650, USA. samiam@uclink.berkeley.edu |
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English |
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0735-7036 |
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Notes |
PMID:9642781 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
5019 |
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Author |
Roper, K.L.; Zentall, T.R. |
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Title |
Directed forgetting in animals |
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Journal Article |
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Year |
1993 |
Publication |
Psychological bulletin |
Abbreviated Journal |
Psychol Bull |
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Volume |
113 |
Issue |
3 |
Pages |
513-532 |
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Animals; Behavior, Animal; *Cognition; Columbidae; Conditioning (Psychology); Discrimination Learning; Female; Humans; Male; Memory Disorders/*psychology; Reinforcement (Psychology); Task Performance and Analysis |
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Abstract |
Directed-forgetting research with animals suggests that animals show disrupted test performance only under certain conditions. Important variables are (a) whether during training, the cue to forget (F cue) signals nonreward (i.e., that the trial is over) versus reward (i.e., that reinforcement can be obtained) and (b) given that reinforcement can be obtained on F-cue trials, whether the post-F-cue response pattern is compatible with the baseline memory task. It is proposed that some findings of directed forgetting can be attributed to trained response biases, whereas others may be attributable perhaps to frustration-produced interference. It is suggested that directed forgetting in animals should be studied using procedures similar to those used to study directed forgetting in humans. This can be accomplished by presenting, within a trial, both to-be-remembered and to-be-forgotten material. |
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Department of Psychology, University of Kentucky, Lexington 40506 |
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0033-2909 |
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Notes |
PMID:8316612 |
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no |
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Call Number |
refbase @ user @ |
Serial |
259 |
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Author |
Lansade, L.; Bouissou, M.-F. |
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Title |
Reactivity to humans: A temperament trait of horses which is stable across time and situations |
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Journal Article |
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Year |
2008 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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Volume |
114 |
Issue |
3-4 |
Pages |
492-508 |
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Keywords |
Horse; Equus caballus; Reactivity to humans; Temperament trait; Personality; Behavioural consistency |
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Abstract |
The aim of this study was to test the existence of a “reactivity-to-humans” trait which is stable over time and across situations. For this purpose, four test situations were repeated on the same animals at 8 months, 1.5 years (N = 110 horses) and 2.5 years of age (N = 54 horses). These situations involved a “familiar passive human test” during which a familiar person stayed motionless in the test pen, a “familiar active human test” and an “unfamiliar active human test” during which a familiar or unfamiliar person attempted to touch the horse, and a “halter-fitting and heart-rate measurement test”, during which the horse was haltered and equipped with a surcingle and then had its heart-rate measured. Many behavioural variables were recorded during the tests, and correlations between ages and variables measured during other situations were investigated. When correlations were found, we concluded that the variables corresponded to temperament traits which are stable over time and across situations. The horses tested were divided into four groups according to breed (Anglo-Arab and Welsh) and year of birth (2001 and 2002). Data for each group were analysed separately with Spearman rank correlations. Regarding stability over time, there was a strong correlation between ages in the frequency of licking/nibbling the passive human, the time taken by a familiar or unfamiliar person to touch the horse, and the time taken to fit a halter (e.g. the time taken to touch the horse's muzzle was significantly correlated between ages in 7 out of the 8 possible cases: 0.40 <= R <= 0.67). Regarding stability across situations, results indicate that the more frequently a horse sniffed, licked or nibbled a passive human, the easier it was for either a familiar or unfamiliar active human to touch and halter it. Moreover, a horse which could be touched easily by a familiar human could also be touched and haltered easily by an unfamiliar human. These behaviours, which are linked directly to humans, therefore indicate good stability over time and across situations. In conclusion, this stability suggests the existence of a “reactivity-to-humans” temperament trait, whether the human is passive or active, familiar or unfamiliar. When the animals do not have frequent contact with humans, this reactivity is stable over time and can be measured as early as 8 months of age using the behavioural variables cited above. |
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0168-1591 |
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Equine Behaviour @ team @ |
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4710 |
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