| Records |
| Author |
Waite, T.A. |
| Title |
Interruptions improve choice performance in gray jays: prolonged information processing versus minimization of costly errors |
Type |
Journal Article |
| Year |
2002 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
5 |
Issue |
4 |
Pages |
209-214 |
| Keywords |
Animals; *Behavior, Animal; *Choice Behavior; Female; Learning; Male; Models, Biological; Motivation; Reinforcement Schedule; Songbirds/*physiology; Time Factors |
| Abstract |
Under the assumption that selection favors minimization of costly errors, erroneous choice may be common when its fitness cost is low. According to an adaptive-choice model, this cost depends on the rate at which an animal encounters the choice: the higher this rate, the smaller the cost of choosing a less valuable option. Errors should thus be more common when interruptions to foraging are shorter. A previous experiment supported this prediction: gray jays, Perisoreus canadensis, were more error prone when subjected to shorter delays to access to food rewards. This pattern, though, is also predicted by an attentional-constraints model. Because the subjects were able to inspect the rewards during delays, their improved performance when subjected to longer delays could have been a byproduct of the experimentally prolonged opportunity for information processing. To evaluate this possibility, a follow-up experiment manipulated both delay to access and whether rewards could be inspected during delays. Depriving jays of the opportunity to inspect rewards (using opaque lids) induced only a small, nonsignificant increase in error rate. This effect was independent of length of delay and so the jays' improved performance when subjected to longer delays was not simply a byproduct of prolonged information processing. More definitively, even when the jays were prevented from inspecting rewards during delays, their performance improved when subjected to longer delays. The findings are thus consistent with the adaptive-choice model. |
| Address |
Department of Evolution, Ecology, and Organismal Biology, Ohio State University, 1735 Neil Avenue, Columbus, OH 43210-1293, USA. waite.1@osu.edu |
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English |
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Series Issue |
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Edition |
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| ISSN |
1435-9448 |
ISBN |
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Conference |
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| Notes |
PMID:12461598 |
Approved |
no |
Call Number  |
Equine Behaviour @ team @ |
Serial |
2592 |
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| Author |
Caldwell, C.A.; Whiten, A. |
| Title |
Evolutionary perspectives on imitation: is a comparative psychology of social learning possible? |
Type |
Journal Article |
| Year |
2002 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
5 |
Issue |
4 |
Pages |
193-208 |
| Keywords |
Animals; *Behavior, Animal; Evolution; Humans; *Imitative Behavior; Learning; Models, Animal |
| Abstract |
Studies of imitation in animals have become numerous in recent times, but do they contribute to a comparative psychology of social learning? We review this burgeoning field to identify the problems and prospects for such a goal. Difficulties of two main kinds are identified. First, researchers have tackled questions about social learning from at least three very different theoretical perspectives, the “phylogenetic”, “animal model”, and “adaptational”. We examine the conflicts between them and consider the scope for integration. A second difficulty arises in the methodological approaches used in the discipline. In relation to one of these – survey reviews of published studies – we tabulate and compare the contrasting conclusions of nine articles that together review 36 studies. The basis for authors' disagreements, including the matters of perceptual opacity, novelty, sequential structure, and goal representation, are examined. In relation to the other key method, comparative experimentation, we identify 12 studies that have explicitly compared species' imitative ability on similar tasks. We examine the principal problems of comparing like with like in these studies and consider solutions, the most powerful of which we propose to be the use of a systematic range of task designs, rather than any single “gold standard” task. |
| Address |
School of Psychology, Washington Singer Laboratories, University of Exeter, Exeter EX4 4QG, UK. C.A.Caldwell@exeter.ac.uk |
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English |
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| ISSN |
1435-9448 |
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| Notes |
PMID:12461597 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2593 |
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| Author |
Pepperberg, I.M. |
| Title |
The value of the Piagetian framework for comparative cognitive studies |
Type |
Journal Article |
| Year |
2002 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
5 |
Issue |
3 |
Pages |
177-182 |
| Keywords |
Animals; *Behavior, Animal; *Cognition; Discrimination Learning; *Intelligence; *Models, Psychological; *Models, Theoretical |
| Abstract |
Although the Piagetian framework has been used by numerous researchers to compare cognitive abilities of diverse species, the system is often criticized as implemented. I examine the various criticisms, suggest ways in which the system can be improved, and argue for the need for descriptive systems such as the Piagetian framework to complement programs that look for cellular and molecular bases or mathematical models to explain behavior. |
| Address |
School of Architecture and Planning, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. impepper@media.mit.edu |
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English |
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1435-9448 |
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| Notes |
PMID:12357290 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2595 |
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| Author |
Mouritsen, K.N. |
| Title |
Hitch-hiking parasite: a dark horse may be the real rider |
Type |
Journal Article |
| Year |
2001 |
Publication |
International Journal for Parasitology |
Abbreviated Journal |
Int J Parasitol |
| Volume |
31 |
Issue |
13 |
Pages |
1417-1420 |
| Keywords |
Animals; *Behavior, Animal; Ecology; Host-Parasite Relations; Snails/*parasitology; Trematoda/growth & development/*physiology; Trematode Infections/transmission |
| Abstract |
Many parasites engaged in complex life cycles manipulate their hosts in a way that facilitates transmission between hosts. Recently, a new category of parasites (hitch-hikers) has been identified that seem to exploit the manipulating effort of other parasites with similar life cycle by preferentially infecting hosts already manipulated. Thomas et al. (Evolution 51 (1997) 1316) showed that the digenean trematodes Microphallus papillorobustus (the manipulator) and Maritrema subdolum (the hitch-hiker) were positively associated in field samples of gammarid amphipods (the intermediate host), and that the behaviour of Maritrema subdolum rendered it more likely to infect manipulated amphipods than those uninfected by M. papillorobustus. Here I provide experimental evidence demonstrating that M. subdolum is unlikely to be a hitch-hiker in the mentioned system, whereas the lucky candidate rather is the closely related but little known species, Microphallidae sp. no. 15 (Parassitologia 22 (1980) 1). As opposed to the latter species, Maritrema subdolum does not express the appropriate cercarial behaviour for hitch-hiking. |
| Address |
Department of Marine Ecology, Institute of Biological Sciences, University of Aarhus, Finlandsgade 14, DK-8200 Aarhus N, Denmark. kim.mouritsen@stonebow.otago.ac.nz |
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English |
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Edition |
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| ISSN |
0020-7519 |
ISBN |
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Conference |
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| Notes |
PMID:11595227 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2645 |
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| Author |
Lemasson, J.J.; Fontenille, D.; Lochouarn, L.; Dia, I.; Simard, F.; Ba, K.; Diop, A.; Diatta, M.; Molez, J.F. |
| Title |
Comparison of behavior and vector efficiency of Anopheles gambiae and An. arabiensis (Diptera:Culicidae) in Barkedji, a Sahelian area of Senegal |
Type |
Journal Article |
| Year |
1997 |
Publication |
Journal of Medical Entomology |
Abbreviated Journal |
J Med Entomol |
| Volume |
34 |
Issue |
4 |
Pages |
396-403 |
| Keywords |
Animals; Anopheles/*parasitology; *Behavior, Animal; Cattle; Desert Climate; Horses/parasitology; Humans; Insect Vectors/*parasitology; Longitudinal Studies; Malaria/*transmission; Malaria, Falciparum/transmission; Periodicity; Plasmodium malariae/isolation & purification; Protozoan Proteins/analysis; Rain; Seasons; Senegal; Sheep/parasitology; Species Specificity |
| Abstract |
The ecology, population dynamics, and malaria vector efficiency of Anopheles gambiae and An. arabiensis were studied for 2 yr in a Sahelian village of Senegal. Anophelines were captured at human bait and resting indoors by pyrethrum spray. Mosquitoes belonging to the An. gambiae complex were identified by polymerase chain reaction. Of 26,973 females, An. arabiensis represented 79% of the mosquitoes captured and remained in the study area longer than An. gambiae after the rains terminated. There were no differences in nocturnal biting cycles or endophagous rates between An. gambiae and An. arabiensis. Based on an enzyme-linked immunosorbent assay test of bloodmeals, the anthropophilic rate of these 2 vectors were both approximately 60%, when comparisons were made during the same period. Overall, 18% of the resting females had patent mixed bloodmeals, mainly human-bovine. The parity rates of An. gambiae and An. arabiensis varied temporally. Despite similar behavior, the Plasmodium falciparum circumsporozoite protein (CSP) rates were different between An. gambiae (4.1%) and An. arabiensis (1.3%). P. malariae and P. ovale only represented 4% of the total Plasmodium identified in mosquitoes. Transmission was seasonal, occurring mainly during 4 mo. The CSP entomological inoculation rates were 128 bites per human per year for the 1st yr and 100 for the 2nd yr. Because of the combination of a high human biting rate and a low CSP rate, An. arabiensis accounted for 63% of transmission. Possible origin of differences in CSP rate between An. gambiae and An. arabiensis is discussed in relation to the parity rate, blood feeding frequency, and the hypothesis of genetic factors. |
| Address |
Institut Francais de Recherche Scientifique pour le Developpement en cooperation (ORSTOM), Institut Pasteur, Dakar, Senegal |
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English |
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0022-2585 |
ISBN |
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| Notes |
PMID:9220672 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2655 |
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| Author |
Wang, L.Y. |
| Title |
Host preference of mosquito vectors of Japanese encephalitis |
Type |
Journal Article |
| Year |
1975 |
Publication |
Zhonghua Minguo wei Sheng wu xue za zhi = Chinese Journal of Microbiology |
Abbreviated Journal |
Zhonghua Min Guo Wei Sheng Wu Xue Za Zhi |
| Volume |
8 |
Issue |
4 |
Pages |
274-279 |
| Keywords |
Animals; *Behavior, Animal; Birds/blood; *Culex; Ecology; Encephalitis, Japanese/*transmission; *Feeding Behavior; Female; Humans; *Insect Vectors; Mammals/blood; Species Specificity; Taiwan |
| Abstract |
The host preference of 4 Culex mosquito species collected in Miaoli and Pingtung counties, Taiwan was studied by capillary precipitin method. Antisera to alum-precipitated sera of man, bovine, swine, rabbit, horse, dog, cat, mouse, chicken, duck, and pigeon were produced in rabbits and reacted with 758 mosquito blood meals among which reactions to one or more antisera. Culex annulus and Culex tritaeniorhynchus summorosus showed a great avidity for pig, and Culex fuscocephala for bovine. Culex pipiens fatigans was ornithophilic. None of 110 C. t. summorosus and 2.4% of 223 C. annulus had fed on man. Among 66 samples of C.p. fatigans tested 10.3% had fed on man, while none of 359 C. fuscocephala did. It seems that the latter does not act as a primary vector of Japanese encephalitis. |
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English |
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| ISSN |
0009-4587 |
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| Notes |
PMID:181218 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2702 |
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| Author |
Curtis, S.E.; Stricklin, W.R. |
| Title |
The importance of animal cognition in agricultural animal production systems: an overview |
Type |
Journal Article |
| Year |
1991 |
Publication |
Journal of Animal Science |
Abbreviated Journal |
J. Anim Sci. |
| Volume |
69 |
Issue |
12 |
Pages |
5001-5007 |
| Keywords |
*Agriculture; Animal Population Groups/*psychology; *Animal Welfare; Animals; *Behavior, Animal; *Cognition; Heat; Helplessness, Learned; Housing, Animal/standards; Immobilization; Nesting Behavior; Pain/psychology/veterinary |
| Abstract |
To describe and then fulfill agricultural animals' needs, we must learn more about their fundamental psychological and behavioral processes. How does this animal feel? Is that animal suffering? Will we ever be able to know these things? Scientists specializing in animal cognition say that there are numerous problems but that they can be overcome. Recognition by scientists of the notion of animal awareness has been increasing in recent years, because of the work of Griffin and others. Feeling, thinking, remembering, and imagining are cognitive processes that are factors in the economic and humane production of agricultural animals. It has been observed that the animal welfare debate depends on two controversial questions: Do animals have subjective feelings? If they do, can we find indicators that reveal them? Here, indirect behavioral analysis approaches must be taken. Moreover, the linear additivity of several stressor effects on a variety of animal traits suggests that some single phenomenon is acting as a “clearinghouse” for many or all of the stresses acting on an animal at any given time, and this phenomenon might be psychological stress. Specific situations animals may encounter in agricultural production settings are discussed with respect to the animals' subjective feelings. |
| Address |
University of Illinois, Urbana 61801 |
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English |
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0021-8812 |
ISBN |
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| Notes |
PMID:1808193 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2754 |
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| Author |
Church, R.M. |
| Title |
Quantitative models of animal learning and cognition |
Type |
Journal Article |
| Year |
1997 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
| Volume |
23 |
Issue |
4 |
Pages |
379-389 |
| Keywords |
Animals; *Behavior, Animal; *Cognition; Computer Simulation; *Learning; *Models, Psychological; *Models, Theoretical |
| Abstract |
This article reviews the prerequisites for quantitative models of animal learning and cognition, describes the types of models, provides a rationale for the development of such quantitative models, describes criteria for their evaluation, and makes recommendations for the next generation of quantitative models. A modular approach to the development of models is described in which a procedure is considered as a generator of stimuli and a model is considered as a generator of responses. The goal is to develop models that, in combination with many different procedures, produce sequences of times of occurrence of events (stimuli and responses) that are indistinguishable from those produced by the animal under many experimental procedures and data analysis techniques. |
| Address |
Department of Psychology, Brown University, Providence, Rhode Island 02912, USA. russell_church@brown.edu |
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English |
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Edition |
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| ISSN |
0097-7403 |
ISBN |
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Medium |
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Conference |
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| Notes |
PMID:9335132 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2778 |
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| Author |
Fetterman, J.G. |
| Title |
Dimensions of stimulus complexity |
Type |
Journal Article |
| Year |
1996 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
| Volume |
22 |
Issue |
1 |
Pages |
3-18 |
| Keywords |
Animals; *Behavior, Animal; Cognition; *Learning; Memory; Time Factors |
| Abstract |
Animal learning research has increasingly used complex stimuli that approximate natural objects, events, and locations, a trend that has accompanied a resurgence of interest in the role of cognitive factors in learning. Accounts of complex stimulus control have focused mainly on cognitive mechanisms and largely ignored the contribution of stimulus information to perception and memory for complex events. It is argued here that research on animal learning stands to benefit from a more detailed consideration of the stimulus and that James Gibson's stimulus-centered theory of perception serves as a useful framework for analyses of complex stimuli. Several issues in the field of animal learning and cognition are considered from the Gibsonian perspective on stimuli, including the fundamental problem of defining the effective stimulus. |
| Address |
Department of Psychology, Indiana University-Purdue University, Indianapolis 46202, USA |
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English |
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0097-7403 |
ISBN |
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| Notes |
PMID:8568494 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2782 |
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| Author |
Crook, J.H. |
| Title |
On attributing consciousness to animals |
Type |
Journal Article |
| Year |
1983 |
Publication |
Nature |
Abbreviated Journal |
Nature |
| Volume |
303 |
Issue |
5912 |
Pages |
11-14 |
| Keywords |
Animals; *Behavior, Animal; Cognition; *Consciousness; Evolution; Learning |
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English |
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Edition |
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| ISSN |
0028-0836 |
ISBN |
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| Notes |
PMID:6843653 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2795 |
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