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Author |
Gallup, G.G.J. |
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Title  |
On the rise and fall of self-conception in primates |
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Journal Article |
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Year |
1997 |
Publication |
Annals of the New York Academy of Sciences |
Abbreviated Journal |
Ann N Y Acad Sci |
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Volume |
818 |
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Pages |
72-82 |
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Keywords |
Animals; Phylogeny; Primates/*psychology; *Self Concept |
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Department of Psychology, State University of New York at Albany 12222, USA |
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English |
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0077-8923 |
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PMID:9237466 |
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Call Number |
Equine Behaviour @ team @ |
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4134 |
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Author |
Slabbert, J.M.; Rasa, O.A.E. |
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Title |
Observational learning of an acquired maternal behaviour pattern by working dog pups: an alternative training method? |
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Journal Article |
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Year |
1997 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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Volume |
53 |
Issue |
4 |
Pages |
309-316 |
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Keywords |
Dog; Learning; Parental behaviour; Narcotics |
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German shepherd pups from untrained bitches and bitches trained in the location of narcotics were either separated from their mothers at 6 weeks (standard raised) or at 3 months of age (extended maternal care). Pups with extended maternal care which were allowed to observe their trained mothers locating and retrieving a sachet of odour-producing narcotic between the ages of 6 and 12 weeks performed the same task significantly better than non-exposed pups when tested at the age of 6 months, without further reinforcement during the interim period. This difference in performance was independent of the duration of maternal care or maternal origin of the pups and was attributed to differences in early experience acquired through observational learning. |
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0168-1591 |
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Equine Behaviour @ team @ |
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5225 |
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Author |
Delacour, J. |
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Title |
Object Perception and Recognition: A Model for the Scientific Study of Consciousness |
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Journal Article |
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Year |
1997 |
Publication |
Theory Psychology |
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7 |
Issue |
2 |
Pages |
257-262 |
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The main obstacles to the scientific study of consciousness are its subjectivity and its complexity. Object perception and recognition (OPR) can be a useful model in such a study because there is a remarkable agreement between the subjective and objective aspects of OPR; in addition, while OPR is somewhat simpler than other forms of cognition, it adequately represents one characteristic feature of consciousness: intentionality. It thus allows convergent studies of experimental psychology, artificial intelligence and biology, in both humans and animals. Recent advances in the neurophysiology of visual OPR in subhuman primates and its brain imaging in humans provide a vital thread to the neural basis of consciousness, especially of its integrative, unifying character. |
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10.1177/0959354397072007 |
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Equine Behaviour @ team @ |
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2967 |
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Author |
Dulac, C. |
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Title |
Molecular biology of pheromone perception in mammals |
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Journal Article |
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Year |
1997 |
Publication |
Seminars in Cell & Developmental Biology |
Abbreviated Journal |
Semin Cell Dev Biol |
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8 |
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2 |
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197-205 |
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Keywords |
accessory olfactory bulb; olfaction; olfactory receptor; pheromone; vomeronasal |
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In mammals, olfactory sensory perception is mediated by two anatomically and functionally distinct sensory organs: the main olfactory epithelium (MOE) and the vomeronasal organ (VNO). Pheromones activate the VNO and elicit a characteristic array of innate reproductive and social behaviors, along with dramatic neuroendocrine responses. Recent approaches have provided new insights into the molecular biology of sensory transduction in the vomeronasal organ. Differential screening of cDNA libraries constructed from single sensory neurons from the rat VNO has led to the isolation of a family of genes which are likely to encode mammalian pheromone receptors. The isolation of these receptors from the vomeronasal organ might permit the analysis of the molecular events which translate the bindings of pheromones into innate stereotypic behaviors and help to elucidate the logic of pheromone perception in mammals. |
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refbase @ user @ |
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797 |
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Author |
Huber, R.; van Staaden, M.J.; Kaufman, L.S.; Liem, K.F. |
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Title |
Microhabitat Use, Trophic Patterns, and the Evolution of Brain Structure in African Cichlids |
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Journal Article |
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Year |
1997 |
Publication |
Brain, Behavior and Evolution |
Abbreviated Journal |
Brain Behav Evol |
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50 |
Issue |
3 |
Pages |
167-182 |
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Abstract |
The species assemblages of cichlids in the three largest African Great Lakes are among the richest concentrations of vertebrate species on earth. The faunas are broadly similar in terms of trophic diversity, species richness, rates of endemism, and taxonomic composition, yet they are historically independent of each other. Hence, they offer a true and unique evolutionary experiment to test hypotheses concerning the mutual dependencies of ecology and brain morphology. We examined the brains of 189 species of cichlids from the three large lakes: Victoria, Tanganyika, and Malawi. A first paper demonstrated that patterns of evolutionary change in cichlid brain morphology are similar across taxonomic boundaries as well as across the three lakes [van Staaden et al., 1995 ZACS 98: 165–178]. Here we report a close relationship between the relative sizes of various brain structures and variables related to the utilization of habitat and prey. Causality is difficult to assign in this context, nonetheless, prey size and agility, turbidity levels, depth, and substrate complexity are all highly predictive of variation in brain structure. Areas associated with primary sensory functions such as vision and taste relate significantly to differences in feeding habits. Turbidity and depth are closely associated with differences in eye size, and large eyes are associated with species that pick plankton from the water column. Piscivorous taxa and others that utilize motile prey are characterized by a well developed optic tectum and a large cerebellum compared to species that prey on molluscs or plants. Structures relating to taste are well developed in species feeding on benthos over muddy or sandy substrates. The data militated against the existence of compensatory changes in brain structure. Thus enhanced development of a particular function is generally not accompanied by a parallel reduction of structures related to other modalities. Although genetic and environmental influences during ontogeny of the brain cannot be isolated, this study provides a rich source of hypotheses concerning the way the nervous system functions under various environmental conditions and how it has responded to natural selection. |
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0006-8977 |
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Equine Behaviour @ team @ |
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5454 |
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Author |
Palme, R.; Moestl, E. |
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Title |
Measurement of cortisol metabolites in faeces of sheep as a parameter of cortisol concentration in blood |
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Journal Article |
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Year |
1997 |
Publication |
Zeitschrift für Säugetierkunde |
Abbreviated Journal |
J. Mammal. Biol. |
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62 |
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192-197 |
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glucocorticoids, metabolites, animal biology, sheep, immunoenzyme techniques, |
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Equine Behaviour @ team @ |
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6044 |
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Author |
Whiten A.; Byrne, R. W. (eds) |
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Title |
Machiavellian Intelligence II – Extensions and Evaluations |
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Book Whole |
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1997 |
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Cambridge University Press |
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Cambridge |
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Whiten A.; Byrne, R. W. |
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Equine Behaviour @ team @ |
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5233 |
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Author |
Hauser MD; Kralik J |
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Title |
Life beyond the mirror: a reply to Anderson & Gallup |
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Year |
1997 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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54 |
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1568 |
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Equine Behaviour @ team @ |
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3002 |
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Author |
Aureli, F.; de Waal, F.B. |
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Title |
Inhibition of social behavior in chimpanzees under high-density conditions |
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Journal Article |
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Year |
1997 |
Publication |
American journal of primatology |
Abbreviated Journal |
Am. J. Primatol. |
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Volume |
41 |
Issue |
3 |
Pages |
213-228 |
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Keywords |
Aggression/*psychology; Animals; *Behavior, Animal; *Crowding; Female; Male; Pan troglodytes/*psychology; Population Density; *Social Environment; Stress, Psychological |
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This is the first study to investigate the short-term effects of high population density on captive chimpanzees (Pan troglodytes). Subjects of the study were 45 chimpanzees living in five different groups at the Yerkes Regional Primate Research Center. The groups were observed under two conditions: 1) when they had access to both the indoor and outdoor sections of their enclosures; 2) during cold days when they were locked into the indoor runs, which reduced the available space by more than half. Under the high-density condition, allogrooming and submissive greetings decreased, but juvenile play increased. Remarkably, the rate of various forms of agonistic behavior, such as aggression, bluff charge, bluff display, and hooting, occurred less frequently under the high-density condition. This general decrease in adult social activity, including agonistic behavior, can be interpreted as an inhibition strategy to reduce opportunities for conflict when interindividual distances are reduced. This strategy is probably effective only in the short run, however. Behavioral indicators of anxiety, such as rough scratching and yawning, showed elevated rates, suggesting increased social tension under the high-density condition. |
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Yerkes Regional Primate Research Center, Emory University, Atlanta, GA 30322, USA |
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English |
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0275-2565 |
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PMID:9057966 |
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Call Number |
refbase @ user @ |
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203 |
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Author |
Hoff, M.P.; Powell, D.M.; Lukas, K.E.; Maple, T.L. |
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Title |
Individual and social behavior of lowland gorillas in outdoor exhibits compared with indoor holding areas |
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Journal Article |
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Year |
1997 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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Volume |
54 |
Issue |
4 |
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359-370 |
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Behavior; Agonistic behavior; Spatial distribution; Primates; Social behavior; Housing; Zoo animals; Gorilla |
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The behavior of nine lowland gorillas (Gorilla gorilla gorilla) living in three social groups at Zoo Atlanta was compared in an indoor holding area versus an outdoor exhibit. Focal animal data were collected for each animal during 15 min observation sessions, alternating between indoors and outdoors. A variety of solitary and social behaviors differed in the two conditions. All individual and social behaviors that showed a difference, except eating, occurred more indoors than outdoors. These included aggressive displays, reclining, self manipulation, and social examination of others. Additionally, the gorillas spent more time closer together in the indoor condition. A variety of other behaviors measured did not change between the two environments. There was a clear effect on behavior of the different housing conditions in which the gorillas were kept. It is suggested that the differences in aggressive behavior may be related to environmental complexity. It is further suggested that zoos should be aware that differences in behavior reported by caretaking staff, researchers and visitors may be a reflection of the differing environmental circumstances in which the animals are observed. |
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2143 |
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