| Records |
| Author |
Gallup, G.G.J. |
| Title |
On the rise and fall of self-conception in primates |
Type |
Journal Article |
| Year |
1997 |
Publication |
Annals of the New York Academy of Sciences |
Abbreviated Journal |
Ann N Y Acad Sci |
Volume  |
818 |
Issue |
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Pages |
72-82 |
| Keywords |
Animals; Phylogeny; Primates/*psychology; *Self Concept |
| Abstract |
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| Address |
Department of Psychology, State University of New York at Albany 12222, USA |
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English |
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| ISSN |
0077-8923 |
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| Notes |
PMID:9237466 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4134 |
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| Author |
Swartz, K.B. |
| Title |
What is mirror self-recognition in nonhuman primates, and what is it not? |
Type |
Journal Article |
| Year |
1997 |
Publication |
Annals of the New York Academy of Sciences |
Abbreviated Journal |
Ann N Y Acad Sci |
| Volume |
818 |
Issue |
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Pages |
64-71 |
| Keywords |
Animals; *Awareness; *Behavior, Animal; *Ego; Primates/*psychology |
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| Address |
Department of Psychology, Lehman College of the City University of New York, Bronx 10468, USA |
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English |
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0077-8923 |
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| Notes |
PMID:9237465 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4135 |
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| Author |
de Wall, F.B.; Aureli, F. |
| Title |
Conflict resolution and distress alleviation in monkeys and apes |
Type |
Journal Article |
| Year |
1997 |
Publication |
Annals of the New York Academy of Sciences |
Abbreviated Journal |
Ann N Y Acad Sci |
| Volume |
807 |
Issue |
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Pages |
317-328 |
| Keywords |
*Adaptation, Psychological; Animals; Arousal; *Conflict (Psychology); Empathy; Haplorhini/*psychology; Hominidae/*psychology; Humans; Learning; Models, Psychological; *Social Behavior; Stress, Psychological |
| Abstract |
Research on nonhuman primates has produced compelling evidence for reconciliation and consolation, that is, postconflict contacts that serve to respectively repair social relationships and reassure distressed individuals, such as victims of attack. This has led to a view of conflict and conflict resolution as an integrated part of social relationships, hence determined by social factors and modifiable by the social environment. Implications of this new model of social conflict are discussed along with evidence for behavioral flexibility, the value of cooperation, and the possibility that distress alleviation rests on empathy, a capacity that may be present in chimpanzees and humans but not in most other animals. |
| Address |
Yerkes Regional Primate Research Center, Emory University, Atlanta, Georgia 30322, USA. dewaal@rmy.emory.edu |
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0077-8923 |
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| Notes |
PMID:9071360 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
2882 |
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| Author |
Bergstrom,C. T.; Lachmann, M. |
| Title |
Signalling among relatives. I. Is costly signalling too costly? |
Type |
Journal Article |
| Year |
1997 |
Publication |
Proceedings of the National Academy of Sciences of the United States of America |
Abbreviated Journal |
Proc. Natl. Acad. Sci. U.S.A. |
| Volume |
352(1353) |
Issue |
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Pages |
609-617 |
| Keywords |
Signalling |
| Abstract |
ahavi's handicap principle,originally proposed as an explanation for sexual selection ofelaborate male traits, suggests that a sufficient cost to dishonest signals can outweigh the rewards of deception and allow individuals to communicate honestly. Maynard Smith (1991) and Johnstone and Grafen (1992) introduce the Sir Philip Sidney game in order to extend the handicap principle to interactions among related individuals, and to demonstrate that stable costly signalling systems can exist among relatives.
In this paper we demonstrate that despite the benefits associated with honest information transfer, the costs incurred in a stable costly signalling system may leave all participants worse off than they would be in a system with no signalling at all. In both the discrete and continuous forms of the Sir Philip Sidney game, there exist conditions under which costly signalling among relatives, while stable, is so costly that it is disadvantageous compared with no signalling at all. We determine the factors which dictate signal cost and signal benefit in a generalized version of this game, and explain how signal cost can exceed signal value. Such results raise concerns about theevolutionary pathways which could have led to the existence of signalling equilibria in nature. The paper stresses the importance of comparing signalling equilibria with other possible strategies, beforedrawing conclusions regarding the optimality of signalling. |
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no |
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refbase @ user @ |
Serial |
559 |
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| Author |
Pennisi, E. |
| Title |
Schizophrenia clues from monkeys |
Type |
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| Year |
1997 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
| Volume |
277 |
Issue |
5328 |
Pages |
900 |
| Keywords |
Animals; Antipsychotic Agents/pharmacology; Behavior, Animal/drug effects; *Cercopithecus aethiops; Clozapine/pharmacology; Cognition/drug effects; *Disease Models, Animal; Dopamine/*metabolism; Excitatory Amino Acid Antagonists/pharmacology; Memory/drug effects; Phencyclidine/*pharmacology; Prefrontal Cortex/*metabolism; Schizophrenia/chemically induced/drug therapy/*metabolism; Schizophrenic Psychology |
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0036-8075 |
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| Notes |
PMID:9281070 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2844 |
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| Author |
Williams, N. |
| Title |
Evolutionary psychologists look for roots of cognition |
Type |
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| Year |
1997 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
| Volume |
275 |
Issue |
5296 |
Pages |
29-30 |
| Keywords |
Animals; *Behavior, Animal; Birds; *Cognition; *Evolution; Female; Humans; Macaca mulatta/psychology; Male; Memory; Reward; *Social Sciences |
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0036-8075 |
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| Notes |
PMID:8999531 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2845 |
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| Author |
Schultz, W.; Dayan, P.; Montague, P.R. |
| Title |
A Neural Substrate of Prediction and Reward |
Type |
Journal Article |
| Year |
1997 |
Publication |
Science |
Abbreviated Journal |
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| Volume |
275 |
Issue |
5306 |
Pages |
1593-1599 |
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| Abstract |
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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Approved |
no |
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Equine Behaviour @ team @ |
Serial |
5749 |
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| Author |
Reeve, H. Kern |
| Title |
Evolutionarily stable communication between kin: a general model |
Type |
Journal Article |
| Year |
1997 |
Publication |
Proceedings of the Royal Society B: Biological Sciences |
Abbreviated Journal |
Proc. Roy. Soc. Lond. B Biol. Sci. |
| Volume |
264 |
Issue |
(1384) |
Pages |
1037-1040. |
| Keywords |
Signalling Systems |
| Abstract |
At present, the most general evolutionary theory of honest communication is Grafen's model of Zahavi's 'handicap' signalling system, in which honesty of signals about the signaller's quality (e.g. mate suitability or fighting ability) is maintained by the differentially high cost of signals to signallers having lower quality. The latter model is here further generalized to include any communication between signallers and receivers that are genetically related (e.g. parents and begging offspring, cooperative or competing siblings). Signalling systems involving relatives are shown to be evolutionarily stable, despite a potential pay-off for false signalling, if the Zahavian assumption of differential signal costs holds and there are diminishing reproductive returns to the signaller as the receiver's assessed value of its attribute increases, or if, regardless of whether the Zahavian assumption holds, signallers with high values of the attribute benefit more from a given receiver assessment than signallers with low values (e.g. begging chicks that are hungrier benefit more from being fed). In stable systems of signalling among kin, it is also shown to be generally true that (i) levels of signalling and thus observed signal costs will decline as relatedness increases or as the receiver's reproductive penalty for erroneous assessment increases, and (ii) receivers will consistently, altruistically overestimate the true value of the signalled attribute. |
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no |
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refbase @ user @ |
Serial |
557 |
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| Author |
Joffe, T.H.; Dunbar, R.I. |
| Title |
Visual and socio-cognitive information processing in primate brain evolution |
Type |
Journal Article |
| Year |
1997 |
Publication |
Proceedings. Biological Sciences / The Royal Society |
Abbreviated Journal |
Proc Biol Sci |
| Volume |
264 |
Issue |
1386 |
Pages |
1303-1307 |
| Keywords |
Animals; Brain/anatomy & histology/*physiology; Cognition/physiology; *Evolution; Geniculate Bodies/anatomy & histology/physiology; Humans; Mental Processes/physiology; Neocortex/physiology; Primates/anatomy & histology/*physiology/*psychology; *Social Behavior; Visual Cortex/anatomy & histology/physiology |
| Abstract |
Social group size has been shown to correlate with neocortex size in primates. Here we use comparative analyses to show that social group size is independently correlated with the size of non-V1 neocortical areas, but not with other more proximate components of the visual system or with brain systems associated with emotional cueing (e.g. the amygdala). We argue that visual brain components serve as a social information 'input device' for socio-visual stimuli such as facial expressions, bodily gestures and visual status markers, while the non-visual neocortex serves as a 'processing device' whereby these social cues are encoded, interpreted and associated with stored information. However, the second appears to have greater overall importance because the size of the V1 visual area appears to reach an asymptotic size beyond which visual acuity and pattern recognition may not improve significantly. This is especially true of the great ape clade (including humans), that is known to use more sophisticated social cognitive strategies. |
| Address |
School of Life Sciences, University of Liverpool, UK |
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English |
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0962-8452 |
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PMID:9332015 |
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no |
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Serial |
2095 |
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| Author |
Shmidt Mech, L.D. |
| Title |
Wolf pack size and food acquisition |
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Journal Article |
| Year |
1997 |
Publication |
Am Nat |
Abbreviated Journal |
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| Volume |
150 |
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Equine Behaviour @ team @ Shmidt Mech1997 |
Serial |
6482 |
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