Records |
Author |
Mrosovsky, N.; Shettleworth, S.J. |
Title |
Wavelength preferences and brightness cues in the water finding behaviour of sea turtles |
Type |
Journal Article |
Year |
1968 |
Publication |
Behaviour |
Abbreviated Journal |
Behaviour |
Volume |
32 |
Issue |
4 |
Pages |
211-257 |
Keywords |
Animals; *Behavior, Animal; *Color Perception; Cues; Light; *Turtles; Water |
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English |
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0005-7959 |
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PMID:5717260 |
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no |
Call Number |
refbase @ user @ |
Serial |
391 |
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Author |
Pepperberg, I.M. |
Title |
In search of king Solomon's ring: cognitive and communicative studies of Grey parrots (Psittacus erithacus) |
Type |
Journal Article |
Year |
2002 |
Publication |
Brain, behavior and evolution |
Abbreviated Journal |
Brain Behav Evol |
Volume |
59 |
Issue |
1-2 |
Pages |
54-67 |
Keywords |
*Animal Communication; Animals; Attention/physiology; Cognition/*physiology; Cues; Form Perception/physiology; Humans; Intelligence; Learning/physiology; Male; Models, Psychological; Parrots/*physiology; Psychomotor Performance/physiology; Reward; Social Behavior |
Abstract |
During the past 24 years, I have used a modeling technique (M/R procedure) to train Grey parrots to use an allospecific code (English speech) referentially; I then use the code to test their cognitive abilities. The oldest bird, Alex, labels more than 50 different objects, 7 colors, 5 shapes, quantities to 6, 3 categories (color, shape, material) and uses 'no', 'come here', wanna go X' and 'want Y' (X and Y are appropriate location or item labels). He combines labels to identify, request, comment upon or refuse more than 100 items and to alter his environment. He processes queries to judge category, relative size, quantity, presence or absence of similarity/difference in attributes, and show label comprehension. He semantically separates labeling from requesting. He thus exhibits capacities once presumed limited to humans or nonhuman primates. Studies on this and other Greys show that parrots given training that lacks some aspect of input present in M/R protocols (reference, functionality, social interaction) fail to acquire referential English speech. Examining how input affects the extent to which parrots acquire an allospecific code may elucidate mechanisms of other forms of exceptional learning: learning unlikely in the normal course of development but that can occur under certain conditions. |
Address |
The MIT Media Lab, Cambridge, Mass. 02139, USA. impepper@media.mit.edu |
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ISSN |
0006-8977 |
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Notes |
PMID:12097860 |
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no |
Call Number |
refbase @ user @ |
Serial |
579 |
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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 |
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Washington, D.C. : 1983 |
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0735-7036 |
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Notes |
PMID:16551163 |
Approved |
yes |
Call Number |
refbase @ user @ |
Serial |
597 |
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Author |
Lazareva, O.F.; Smirnova, A.A.; Bagozkaja, M.S.; Zorina, Z.A.; Rayevsky, V.V.; Wasserman, E.A. |
Title |
Transitive responding in hooded crows requires linearly ordered stimuli |
Type |
Journal Article |
Year |
2004 |
Publication |
Journal of the experimental analysis of behavior |
Abbreviated Journal |
J Exp Anal Behav |
Volume |
82 |
Issue |
1 |
Pages |
1-19 |
Keywords |
Animals; *Association; Cognition/physiology; Crows; Discrimination (Psychology); *Discrimination Learning; Feedback; Reinforcement (Psychology); Visual Perception/physiology |
Abstract |
Eight crows were taught to discriminate overlapping pairs of visual stimuli (A+ B-, B+ C-, C+ D-, and D+ E-). For 4 birds, the stimuli were colored cards with a circle of the same color on the reverse side whose diameter decreased from A to E (ordered feedback group). These circles were made available for comparison to potentially help the crows order the stimuli along a physical dimension. For the other 4 birds, the circles corresponding to the colored cards had the same diameter (constant feedback group). In later testing, a novel choice pair (BD) was presented. Reinforcement history involving stimuli B and D was controlled so that the reinforcement/nonreinforcement ratios for the latter would be greater than for the former. If, during the BD test, the crows chose between stimuli according to these reinforcement/nonreinforcement ratios, then they should prefer D; if they chose according to the diameter of the feedback stimuli, then they should prefer B. In the ordered feedback group, the crows strongly preferred B over D; in the constant feedback group, the crows' choice did not differ significantly from chance. These results, plus simulations using associative models, suggest that the orderability of the postchoice feedback stimuli is important for crows' transitive responding. |
Address |
Institute of Higher Nervous Activity, Moscow State University. olga-lazareva@uiowa.edu |
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ISSN |
0022-5002 |
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Notes |
PMID:15484868 |
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no |
Call Number |
refbase @ user @ |
Serial |
612 |
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Author |
Seyfarth, R.M.; Cheney, D.L. |
Title |
Signalers and receivers in animal communication |
Type |
Journal Article |
Year |
2003 |
Publication |
Annual review of psychology |
Abbreviated Journal |
Annu Rev Psychol |
Volume |
54 |
Issue |
|
Pages |
145-173 |
Keywords |
Affect; *Animal Communication; Animals; Arousal; Auditory Perception; Motivation; *Social Behavior; Social Environment; Species Specificity; *Vocalization, Animal |
Abstract |
In animal communication natural selection favors callers who vocalize to affect the behavior of listeners and listeners who acquire information from vocalizations, using this information to represent their environment. The acquisition of information in the wild is similar to the learning that occurs in laboratory conditioning experiments. It also has some parallels with language. The dichotomous view that animal signals must be either referential or emotional is false, because they can easily be both: The mechanisms that cause a signaler to vocalize do not limit a listener's ability to extract information from the call. The inability of most animals to recognize the mental states of others distinguishes animal communication most clearly from human language. Whereas signalers may vocalize to change a listener's behavior, they do not call to inform others. Listeners acquire information from signalers who do not, in the human sense, intend to provide it. |
Address |
Department of Psychology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. seyfarth@psych.upenn.edu |
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ISSN |
0066-4308 |
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Notes |
PMID:12359915 |
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no |
Call Number |
refbase @ user @ |
Serial |
690 |
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Author |
Seyfarth, R.M.; Cheney, D.L. |
Title |
The acoustic features of vervet monkey grunts |
Type |
Journal Article |
Year |
1984 |
Publication |
The Journal of the Acoustical Society of America |
Abbreviated Journal |
J Acoust Soc Am |
Volume |
75 |
Issue |
5 |
Pages |
1623-1628 |
Keywords |
*Acoustics; Animals; Auditory Perception; Cercopithecus/*physiology; Cercopithecus aethiops/*physiology; Cues; Dominance-Subordination; Female; Male; Social Behavior; Sound Spectrography; *Vocalization, Animal |
Abstract |
East African vervet monkeys give short (125 ms), harsh-sounding grunts to each other in a variety of social situations: when approaching a dominant or subordinate member of their group, when moving into a new area of their range, or upon seeing another group. Although all these vocalizations sound similar to humans, field playback experiments have shown that the monkeys distinguish at least four different calls. Acoustic analysis reveals that grunts have an aperiodic F0, at roughly 240 Hz. Most grunts exhibit a spectral peak close to this irregular F0. Grunts may also contain a second, rising or falling frequency peak, between 550 and 900 Hz. The location and changes in these two frequency peaks are the cues most likely to be used by vervets when distinguishing different grunt types. |
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ISSN |
0001-4966 |
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Notes |
PMID:6736426 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
703 |
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Author |
Biederman, G.B.; Robertson, H.A.; Vanayan, M. |
Title |
Observational learning of two visual discriminations by pigeons: a within-subjects design |
Type |
Journal Article |
Year |
1986 |
Publication |
Journal of the experimental analysis of behavior |
Abbreviated Journal |
J Exp Anal Behav |
Volume |
46 |
Issue |
1 |
Pages |
45-49 |
Keywords |
Animals; Attention; Columbidae; Conditioning, Operant; Cues; *Discrimination Learning; *Imitative Behavior; Male; Visual Perception |
Abstract |
Pigeon's observational learning of successive visual discrimination was studied using within-subject comparisons of data from three experimental conditions. Two pairs of discriminative stimuli were used; each bird was exposed to two of the three experimental conditions, with different pairs of stimuli used in a given bird's two conditions. In one condition, observers were exposed to visual discriminative stimuli only. In a second condition, subjects were exposed to a randomly alternating sequence of two stimuli where the one that would subsequently be used as S+ was paired with the operation of the grain magazine. In a third experimental condition, subjects were exposed to the performance of a conspecific in the operant discrimination procedure. After exposures to conspecific performances, there was facilitation of discriminative learning, relative to that which followed exposures to stimulus and reinforcement sequences or exposures to stimulus sequences alone. Exposure to stimulus and food-delivery sequences enhanced performance relative to exposure to stimulus sequences alone. The differential effects of these three types of exposure were not attributable to order effects or to task difficulty; rather, they clearly were due to the type of exposure. |
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ISSN |
0022-5002 |
ISBN |
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Notes |
PMID:3746187 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
853 |
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Author |
Dougherty, D.M.; Lewis, P. |
Title |
Stimulus generalization, discrimination learning, and peak shift in horses |
Type |
Journal Article |
Year |
1991 |
Publication |
Journal of the experimental analysis of behavior |
Abbreviated Journal |
J Exp Anal Behav |
Volume |
56 |
Issue |
1 |
Pages |
97-104 |
Keywords |
Animals; *Appetitive Behavior; Attention; *Conditioning, Operant; *Discrimination Learning; Female; *Generalization, Stimulus; Horses/*psychology; Male; *Pattern Recognition, Visual; Size Perception |
Abstract |
Using horses, we investigated three aspects of the stimulus control of lever-pressing behavior: stimulus generalization, discrimination learning, and peak shift. Nine solid black circles, ranging in size from 0.5 in. to 4.5 in. (1.3 cm to 11.4 cm) served as stimuli. Each horse was shaped, using successive approximations, to press a rat lever with its lip in the presence of a positive stimulus, the 2.5-in. (6.4-cm) circle. Shaping proceeded quickly and was comparable to that of other laboratory organisms. After responding was maintained on a variable-interval 30-s schedule, stimulus generalization gradients were collected from 2 horses prior to discrimination training. During discrimination training, grain followed lever presses in the presence of a positive stimulus (a 2.5-in circle) and never followed lever presses in the presence of a negative stimulus (a 1.5-in. [3.8-cm] circle). Three horses met a criterion of zero responses to the negative stimulus in fewer than 15 sessions. Horses given stimulus generalization testing prior to discrimination training produced symmetrical gradients; horses given discrimination training prior to generalization testing produced asymmetrical gradients. The peak of these gradients shifted away from the negative stimulus. These results are consistent with discrimination, stimulus generalization, and peak-shift phenomena observed in other organisms. |
Address |
Department of Psychology, Ohio University, Athens 45701 |
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0022-5002 |
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Notes |
PMID:1940765 |
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no |
Call Number |
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Serial |
1764 |
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Author |
Hall, C.A.; Cassaday, H.J.; Vincent, C.J.; Derrington, A.M. |
Title |
Cone excitation ratios correlate with color discrimination performance in the horse (Equus caballus) |
Type |
Journal Article |
Year |
2006 |
Publication |
Journal of comparative psychology (Washington, D.C. : 1983) |
Abbreviated Journal |
J Comp Psychol |
Volume |
120 |
Issue |
4 |
Pages |
438-448 |
Keywords |
Animals; Behavior, Animal; *Color Perception; *Discrimination (Psychology); Discrimination Learning; Horses; Photoreceptors, Vertebrate/*physiology |
Abstract |
Six horses (Equus caballus) were trained to discriminate color from grays in a counterbalanced sequence in which lightness cues were irrelevant. Subsequently, the pretrained colors were presented in a different sequence. Two sets of novel colors paired with novel grays were also tested. Performance was just as good in these transfer tests. Once the horse had learned to select the chromatic from the achromatic stimulus, regardless of the specific color, they were immediately able to apply this rule to novel stimuli. In terms of the underlying visual mechanisms, the present study showed for the first time that the spectral sensitivity of horse cone photopigments, measured as cone excitation ratios, was correlated with color discrimination performance, measured as accuracy, repeated errors, and latency of approach. |
Address |
School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Southwell, United Kingdom. carol.hall@ntu.ac.uk |
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0735-7036 |
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PMID:17115866 |
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no |
Call Number |
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Serial |
1780 |
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Author |
McBride, S.D.; Long, L. |
Title |
Management of horses showing stereotypic behaviour, owner perception and the implications for welfare |
Type |
Journal Article |
Year |
2001 |
Publication |
The Veterinary Record |
Abbreviated Journal |
Vet. Rec. |
Volume |
148 |
Issue |
26 |
Pages |
799-802 |
Keywords |
*Animal Husbandry/methods; *Animal Welfare; Animals; England/epidemiology; Horse Diseases/*epidemiology/*prevention & control/psychology; Horses; Humans; Interviews; *Perception; *Stereotyped Behavior |
Abstract |
A telephone survey was conducted of 100 racing stables, 100 riding schools and 100 competition establishments (8,427 horses in total) to determine what management practices were being applied to horses showing stereotypic behaviour, and to determine the underlying reasons for them by assessing the perceptions and opinions of the people working with the horses. The results indicated that horse owners are concerned about stereotypic behaviour, first, because it reduces the performance of the animal (31, 30 and 27 per cent of the owners of racing stables, riding schools and competition establishments respectively), secondly, because it has adverse clinical effects on the horse (52, 55 and 56 per cent), and thirdly, because it reduces the monetary value of the animal (45, 59 and 31 per cent). The belief that these behaviours are learnt or copied also affects the management of affected horses: they are not allowed on to the premises by 4, 32 and 17 per cent of owners of racing stables, riding schools and competition establishments, respectively; attempts are made to remove the causal factors of the stereotypy by 35, 43 and 36 per cent; the behaviours are physically prevented by 77, 67 and 79 per cent, and the affected horses are kept separate from other horses by 39, 30 and 48 per cent. |
Address |
Institute of Rural Studies, University of Wales, Aberystwyth |
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0042-4900 |
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PMID:11467606 |
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no |
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refbase @ user @ |
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1918 |
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