|
Records |
Links |
|
Author |
Watve, M.; Thakar, J.; Kale, A.; Puntambekar, S.; Shaikh, I.; Vaze, K.; Jog, M.; Paranjape, S. |
|
|
Title |
Bee-eaters ( Merops orientalis) respond to what a predator can see |
Type |
Journal Article |
|
Year |
2002 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
|
|
Volume |
5 |
Issue |
4 |
Pages |
253-259 |
|
|
Keywords |
Animals; Birds/*physiology; *Predatory Behavior; *Visual Perception |
|
|
Abstract |
Two sets of experiments are reported that show that the small green bee-eater ( Merops orientalis, a small tropical bird) can appreciate what a predator can or cannot see. Bee-eaters avoid entering the nest in the presence of a potential nest predator. In the first set of experiments bee-eaters entered the nest more frequently when the predator was unable to see the nest from its position, as compared to an approximately equidistant position from which the nest could be seen. In the second set of experiments bee-eaters entered the nest more frequently when the predator was looking away from the nest. The angle of gaze from the nest was associated significantly positively with the probability of entering the nest whereas the angle from the bird was not. Birds showed considerable flexibility as well as individual variation in the possible methods of judging the predator's position and direction of gaze. |
|
|
Address |
Life Research Foundation, 10, Pranav, 1000/6C Navi Peth, Pune 411030, India. watve@vsnl.com |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
English |
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
1435-9448 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:12461603 |
Approved |
no |
|
|
Call Number |
Equine Behaviour @ team @ |
Serial |
2587 |
|
Permanent link to this record |
|
|
|
|
Author |
Brauer, J.; Kaminski, J.; Riedel, J.; Call, J.; Tomasello, M. |
|
|
Title |
Making inferences about the location of hidden food: social dog, causal ape |
Type |
Journal Article |
|
Year |
2006 |
Publication |
Journal of comparative psychology |
Abbreviated Journal |
J Comp Psychol |
|
|
Volume |
120 |
Issue |
1 |
Pages |
38-47 |
|
|
Keywords |
Animals; Communication; Cues; Dogs; Exploratory Behavior; *Feeding Behavior; Female; *Food; Male; Pan paniscus; Pan troglodytes; *Visual Perception |
|
|
Abstract |
Domestic dogs (Canis familiaris) and great apes from the genus Pan were tested on a series of object choice tasks. In each task, the location of hidden food was indicated for subjects by some kind of communicative, behavioral, or physical cue. On the basis of differences in the ecologies of these 2 genera, as well as on previous research, the authors hypothesized that dogs should be especially skillful in using human communicative cues such as the pointing gesture, whereas apes should be especially skillful in using physical, causal cues such as food in a cup making noise when it is shaken. The overall pattern of performance by the 2 genera strongly supported this social-dog, causal-ape hypothesis. This result is discussed in terms of apes' adaptations for complex, extractive foraging and dogs' adaptations, during the domestication process, for cooperative communication with humans. |
|
|
Address |
Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany. jbraeuer@eva.mpg.de |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
Washington, D.C. : 1983 |
Editor |
|
|
|
Language |
English |
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0735-7036 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:16551163 |
Approved |
yes |
|
|
Call Number |
refbase @ user @ |
Serial |
597 |
|
Permanent link to this record |
|
|
|
|
Author |
Reiss, D.; Marino, L. |
|
|
Title |
Mirror self-recognition in the bottlenose dolphin: a case of cognitive convergence |
Type |
Journal Article |
|
Year |
2001 |
Publication |
Proceedings of the National Academy of Sciences of the United States of America |
Abbreviated Journal |
Proc. Natl. Acad. Sci. U.S.A. |
|
|
Volume |
98 |
Issue |
10 |
Pages |
5937-5942 |
|
|
Keywords |
Animals; *Cognition; Dolphins/*physiology; *Visual Perception |
|
|
Abstract |
The ability to recognize oneself in a mirror is an exceedingly rare capacity in the animal kingdom. To date, only humans and great apes have shown convincing evidence of mirror self-recognition. Two dolphins were exposed to reflective surfaces, and both demonstrated responses consistent with the use of the mirror to investigate marked parts of the body. This ability to use a mirror to inspect parts of the body is a striking example of evolutionary convergence with great apes and humans. |
|
|
Address |
Osborn Laboratories of Marine Sciences, New York Aquarium, Wildlife Conservation Society, Brooklyn, NY 11224, USA. dlr28@columbia.edu |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
English |
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0027-8424 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:11331768 |
Approved |
no |
|
|
Call Number |
Equine Behaviour @ team @ |
Serial |
2822 |
|
Permanent link to this record |
|
|
|
|
Author |
Fiset, S.; Leblanc, V. |
|
|
Title |
Invisible displacement understanding in domestic dogs (Canis familiaris): the role of visual cues in search behavior |
Type |
Journal Article |
|
Year |
2007 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
|
|
Volume |
10 |
Issue |
2 |
Pages |
211-224 |
|
|
Keywords |
Animals; Dogs/*physiology; Female; Male; *Space Perception; *Spatial Behavior; *Visual Perception |
|
|
Abstract |
Recently, (Collier-Baker E, Davis JM, Suddendorf T (2004) J Comp Psychol 118:421-433) suggested that domestic dogs do not understand invisible displacements. In the present study, we further investigated the hypothesis that the search behavior of domestic dogs in invisible displacements is guided by various visual cues inherent to the task rather than by mental representation of an object's past trajectory. Specifically, we examined the role of the experimenter as a function of the final position of the displacement device in the search behavior of domestic dogs. Visible and invisible displacement problems were administered to dogs (N = 11) under two conditions. In the Visible-experimenter condition, the experimenter was visible whereas in the Concealed-experimenter condition, the experimenter was visibly occluded behind a large rigid barrier. Our data supported the conclusion that dogs do not understand invisible displacements but primarily search as a function of the final position of the displacement device and, to a lesser extent, the position of the experimenter. |
|
|
Address |
Secteur Sciences Humaines, Universite de Moncton, Campus d'Edmundston, Edmundston, New-Brunswick, E3V 2S8, Canada. sfiset@umce.ca |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
English |
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
1435-9448 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:17165041 |
Approved |
no |
|
|
Call Number |
Equine Behaviour @ team @ |
Serial |
2430 |
|
Permanent link to this record |
|
|
|
|
Author |
Fiset, S.; Dore, F.Y. |
|
|
Title |
Duration of cats' (Felis catus) working memory for disappearing objects |
Type |
Journal Article |
|
Year |
2006 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
|
|
Volume |
9 |
Issue |
1 |
Pages |
62-70 |
|
|
Keywords |
Animals; Cats/*psychology; *Exploratory Behavior; Female; Male; *Memory; Random Allocation; *Visual Perception |
|
|
Abstract |
This study explored the duration of cats' working memory for hidden objects. Twenty-four cats were equally divided into four groups, which differed according to the type of visual cues displayed on and/or around the hiding boxes. During eight sessions, the four groups of cats were trained to locate a desirable object hidden behind one of the four boxes placed in front of them. Then, the cats were tested with retention intervals of 0, 10, 30 and 60 s. Results revealed no significant differences between the groups during training or testing. In testing, the cats' accuracy to locate the hidden object rapidly declined between 0 and 30 s but remained higher than chance with delays of up to 60 s. The analysis of errors also indicated that the cats searched as a function of the proximity of the target box and were not subjected to intertrial proactive interference. This experiment reveals that the duration of cats' working memory for disappearing objects is limited and the visual cues displayed on and/or around the boxes do not help the cats to memorize a hiding position. In discussion, we explore why the duration of cats' working memory for disappearing objects rapidly declined and compare these finding with those from domestic dogs. The irrelevance of visual cues displayed on and around the hiding boxes on cats' retention capacity is also discussed. |
|
|
Address |
Secteur Sciences Humaines, Universite de Moncton, Campus d'Edmundston, Edmundston, New-Brunswick,, Canada, E3V 2S8. sfiset@umce.ca |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
English |
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
1435-9448 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:16133631 |
Approved |
no |
|
|
Call Number |
Equine Behaviour @ team @ |
Serial |
2485 |
|
Permanent link to this record |
|
|
|
|
Author |
Klein, E.D.; Bhatt, R.S.; Zentall, T.R. |
|
|
Title |
Contrast and the justification of effort |
Type |
Journal Article |
|
Year |
2005 |
Publication |
Psychonomic bulletin & review |
Abbreviated Journal |
Psychon Bull Rev |
|
|
Volume |
12 |
Issue |
2 |
Pages |
335-339 |
|
|
Keywords |
Awareness; *Cognition; *Discrimination (Psychology); Female; Humans; Male; Questionnaires; *Visual Perception |
|
|
Abstract |
When humans are asked to evaluate rewards or outcomes that follow unpleasant (e.g., high-effort) events, they often assign higher value to that reward. This phenomenon has been referred to as cognitive dissonance or justification of effort. There is now evidence that a similar phenomenon can be found in nonhuman animals. When demonstrated in animals, however, it has been attributed to contrast between the unpleasant high effort and the conditioned stimulus for food. In the present experiment, we asked whether an analogous effect could be found in humans under conditions similar to those found in animals. Adult humans were trained to discriminate between shapes that followed a high-effort versus a low-effort response. In test, participants were found to prefer shapes that followed the high-effort response in training. These results suggest the possibility that contrast effects of the sort extensively studied in animals may play a role in cognitive dissonance and other related phenomena in humans. |
|
|
Address |
University of Kentucky, Lexington, KY 40506-0044, USA |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
English |
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
1069-9384 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:16082815 |
Approved |
no |
|
|
Call Number |
refbase @ user @ |
Serial |
223 |
|
Permanent link to this record |
|
|
|
|
Author |
de Waal, F.B.M. |
|
|
Title |
Darwin's legacy and the study of primate visual communication |
Type |
Journal Article |
|
Year |
2003 |
Publication |
Annals of the New York Academy of Sciences |
Abbreviated Journal |
Ann N Y Acad Sci |
|
|
Volume |
1000 |
Issue |
|
Pages |
7-31 |
|
|
Keywords |
Affect; Aggression/psychology; Animals; Culture; *Evolution; *Facial Expression; Gestures; Grooming; Humans; Laughter; *Nonverbal Communication; Primates/*physiology; Smiling; *Visual Perception |
|
|
Abstract |
After Charles Darwin's The Expression of the Emotions in Man and Animals, published in 1872, we had to wait 60 years before the theme of animal expressions was picked up by another astute observer. In 1935, Nadezhda Ladygina-Kohts published a detailed comparison of the expressive behavior of a juvenile chimpanzee and of her own child. After Kohts, we had to wait until the 1960s for modern ethological analyses of primate facial and gestural communication. Again, the focus was on the chimpanzee, but ethograms on other primates appeared as well. Our understanding of the range of expressions in other primates is at present far more advanced than that in Darwin's time. A strong social component has been added: instead of focusing on the expressions per se, they are now often classified according to the social situations in which they typically occur. Initially, quantitative analyses were sequential (i.e., concerned with temporal associations between behavior patterns), and they avoided the language of emotions. I will discuss some of this early work, including my own on the communicative repertoire of the bonobo, a close relative of the chimpanzee (and ourselves). I will provide concrete examples to make the point that there is a much richer matrix of contexts possible than the common behavioral categories of aggression, sex, fear, play, and so on. Primate signaling is a form of negotiation, and previous classifications have ignored the specifics of what animals try to achieve with their exchanges. There is also increasing evidence for signal conventionalization in primates, especially the apes, in both captivity and the field. This process results in group-specific or “cultural” communication patterns. |
|
|
Address |
Yerkes Primate Center, and Psychology Department, Emory University, Atlanta, Georgia 30322, USA. dewaal@emory.edu |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
English |
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0077-8923 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:14766618 |
Approved |
no |
|
|
Call Number |
refbase @ user @ |
Serial |
177 |
|
Permanent link to this record |