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Author |
Rogers, L.J. |
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Title |
Early Experiential Effects on Laterality: Research on Chicks has Relevance to Other Species |
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Journal Article |
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Year |
1997 |
Publication |
Laterality |
Abbreviated Journal |
Laterality |
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Volume |
2 |
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3-4 |
Pages |
199-219 |
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Abstract |
The influence of early experience on the development of lateralisation of hemispheric function was further investigated, using the chick as a model. A range of functions are lateralised in the chick and these correlate with asymmetry in the organisation of the visual projections. Chicks using the right eye and, therefore, primarily the left hemisphere are able to switch from pecking randomly at grain and pebbles to pecking mainly at grain, whereas those using the left eye and primarily the right hemisphere continue to peck at random. Exposure to light during the last days of incubation establishes this lateralisation in males, as a consequence of the embryo being oriented in the egg so that the left eye only is occluded. Males incubated in the dark peck at random when using either the right or left eye. Irrespective of light experience, females perform the same as darkincubated males: they are not influenced by light exposure. Monocular performance of the pebble-grain task is compared to binocular performance, and the sensitive period for the influence of light is delineated. The interactive effects of sex hormone levels on the differentiation of lateralisation are discussed and also the relevance of the results to other species, including humans. |
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Psychology Press |
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1357-650x |
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doi: 10.1080/713754277 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
5587 |
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Author |
Russell, C.L.; Bard, K.A.; Adamson, L.B. |
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Title |
Social referencing by young chimpanzees (Pan troglodytes) |
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Journal Article |
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Year |
1997 |
Publication |
Journal of Comparative Psychology |
Abbreviated Journal |
J. Comp. Psychol. |
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Volume |
111 |
Issue |
2 |
Pages |
185-191 |
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Keywords |
happy & fear messages concerning novel objects from familiar human caregiver, social referencing, 14–41 mo old chimpanzees |
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Abstract |
Social referencing is the seeking of information from another individual and the use of that information to evaluate a situation. It is a well-documented ability in human infants but has not been studied experimentally in nonhuman primates. Seventeen young nursery-reared chimpanzees (14 to 41 months old) were observed in a standard social referencing paradigm in which they received happy and fear messages concerning novel objects from a familiar human caregiver. Each chimpanzee looked referentially at their caregiver, and the emotional messages that they received differentially influenced their gaze behavior and avoidance of the novel objects. It is concluded that chimpanzees can acquire information about their complex social and physical environments through social referencing and can use emotional information to alter their own behavior. (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
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US: American Psychological Association |
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1939-2087(Electronic);0735-7036(Print) |
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Call Number |
Equine Behaviour @ team @ 1997-06365-008 |
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5603 |
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Author |
Schultz, W.; Dayan, P.; Montague, P.R. |
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Title |
A Neural Substrate of Prediction and Reward |
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Journal Article |
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Year |
1997 |
Publication |
Science |
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Volume |
275 |
Issue |
5306 |
Pages |
1593-1599 |
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The capacity to predict future events permits a creature to detect, model, and manipulate the causal structure of its interactions with its environment. Behavioral experiments suggest that learning is driven by changes in the expectations about future salient events such as rewards and punishments. Physiological work has recently complemented these studies by identifying dopaminergic neurons in the primate whose fluctuating output apparently signals changes or errors in the predictions of future salient and rewarding events. Taken together, these findings can be understood through quantitative theories of adaptive optimizing control. |
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no |
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Equine Behaviour @ team @ |
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5749 |
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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 |
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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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no |
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Equine Behaviour @ team @ |
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6044 |
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Author |
Shmidt Mech, L.D. |
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Title |
Wolf pack size and food acquisition |
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Journal Article |
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Year |
1997 |
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Am Nat |
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150 |
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no |
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Equine Behaviour @ team @ Shmidt Mech1997 |
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6482 |
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Author |
Kräußlich, H.; Brem, G. |
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Title |
Tierzucht und allgemeine Landwirtschaftslehre für Tiermediziner |
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Book Whole |
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Year |
1997 |
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Enke |
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Stuttgart |
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Equine Behaviour @ team @ |
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6542 |
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Author |
unknown |
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Title |
Personality and Personality Disorders |
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Book Chapter |
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Year |
1997 |
Publication |
Behavioural Genetics |
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195-207 |
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Publisher |
W. H. Freeman and Company |
Place of Publication |
New York |
Editor |
Plomin, R.; DeFries, J.C.; McClearn, G.E.;Rutter, M. |
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3 |
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no |
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Call Number |
Equine Behaviour @ team @ |
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4283 |
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