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Zentall, S.S.; Zentall, T.R. |
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Title |
Activity and task performance of hyperactive children as a function of environmental stimulation |
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Year |
1976 |
Publication |
Journal of consulting and clinical psychology |
Abbreviated Journal |
J Consult Clin Psychol |
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Volume |
44 |
Issue |
5 |
Pages |
693-697 |
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Keywords |
Achievement; Acoustic Stimulation; *Arousal; Auditory Perception; Child; Humans; Hyperkinesis/*etiology; Photic Stimulation; Visual Perception |
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0022-006X |
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PMID:965541 |
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refbase @ user @ |
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272 |
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Author |
Shettleworth, S.J. |
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Title |
Stimulus relevance in the control of drinking and conditioned fear responses in domestic chicks (Gallus gallus) |
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Journal Article |
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Year |
1972 |
Publication |
Journal of comparative and physiological psychology |
Abbreviated Journal |
J Comp Physiol Psychol |
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Volume |
80 |
Issue |
2 |
Pages |
175-198 |
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Keywords |
Acoustic Stimulation; Animals; Auditory Perception; Chickens; *Conditioning (Psychology); Conditioning, Classical; Discrimination Learning; *Drinking Behavior; Electroshock; *Fear; *Light; Motor Activity; Photic Stimulation; Punishment; Quinine; *Sound; Taste; Visual Perception |
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0021-9940 |
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PMID:5047826 |
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no |
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Call Number |
refbase @ user @ |
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390 |
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Author |
Werner, C.W.; Tiemann, I.; Cnotka, J.; Rehkamper, G. |
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Title |
Do chickens (Gallus gallus f. domestica) decompose visual figures? |
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Journal Article |
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Year |
2005 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
8 |
Issue |
2 |
Pages |
129-140 |
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Keywords |
Animals; *Chickens; Conditioning, Classical; *Discrimination Learning; Female; *Pattern Recognition, Visual; Photic Stimulation; *Visual Perception |
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Abstract |
To investigate whether learning to discriminate between visual compound stimuli depends on decomposing them into constituting features, hens were first trained to discriminate four features (red, green, horizontal, vertical) from two dimensions (colour, line orientation). After acquisition, hens were trained with compound stimuli made up from these dimensions in two ways: a separable (line on a coloured background) stimulus and an integral one (coloured line). This compound training included a reversal of reinforcement of only one of the two dimensions (half-reversal). After having achieved the compound stimulus discrimination, a second dimensional training identical to the first was performed. Finally, in the second compound training the other dimension was reversed. Two major results were found: (1) an interaction between the dimension reversed and the type of compound stimulus: in compound training with colour reversal, separable compound stimuli were discriminated worse than integral compounds and vice versa in compound training with line orientation reversed. (2) Performance in the second compound training was worse than in the first one. The first result points to a similar mode of processing for separable and integral compounds, whereas the second result shows that the whole stimulus is psychologically superior to its constituting features. Experiment 2 repeated experiment 1 using line orientation stimuli of reversed line and background brightness. Nevertheless, the results were similar to experiment 1. Results are discussed in the framework of a configural exemplar theory of discrimination that assumes the representation of the whole stimulus situation combined with transfer based on a measure of overall similarity. |
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C. and O. Vogt Institute of Brain Research, Heinrich Heine University Dusseldorf, Universitatsstr. 1, 40225, Dusseldorf, Germany. wernerc@uni-duesseldorf.de |
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1435-9448 |
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PMID:15490291 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2503 |
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Author |
Benard, J.; Stach, S.; Giurfa, M. |
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Title |
Categorization of visual stimuli in the honeybee Apis mellifera |
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Journal Article |
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Year |
2006 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
9 |
Issue |
4 |
Pages |
257-270 |
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Keywords |
Animals; Bees/*physiology; Classification; Cognition/*physiology; Discrimination Learning/*physiology; Generalization, Stimulus/physiology; Pattern Recognition, Visual/*physiology; Photic Stimulation; Transfer (Psychology)/*physiology; Visual Perception/*physiology |
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Abstract |
Categorization refers to the classification of perceptual input into defined functional groups. We present and discuss evidence suggesting that stimulus categorization can also be found in an invertebrate, the honeybee Apis mellifera, thus underlining the generality across species of this cognitive process. Honeybees show positive transfer of appropriate responding from a trained to a novel set of visual stimuli. Such a transfer was demonstrated for specific isolated features such as symmetry or orientation, but also for assemblies (layouts) of features. Although transfer from training to novel stimuli can be achieved by stimulus generalization of the training stimuli, most of these transfer tests involved clearly distinguishable stimuli for which generalization would be reduced. Though in most cases specific experimental controls such as stimulus balance and discriminability are still required, it seems appropriate to characterize the performance of honeybees as reflecting categorization. Further experiments should address the issue of which categorization theory accounts better for the visual performances of honeybees. |
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Centre de Recherches sur la Cognition Animale (UMR 5169), CNRS – Universite Paul Sabatier, 118 route de Narbonne, 31062, Toulouse cedex 4, France |
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1435-9448 |
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Notes |
PMID:16909238 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2446 |
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Author |
Aust, U.; Huber, L. |
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Title |
Picture-object recognition in pigeons: evidence of representational insight in a visual categorization task using a complementary information procedure |
Type |
Journal Article |
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Year |
2006 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
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Volume |
32 |
Issue |
2 |
Pages |
190-195 |
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Keywords |
Animals; Classification; *Cognition; Columbidae; *Discrimination Learning; *Form Perception; *Generalization (Psychology); Humans; Perceptual Closure; Photic Stimulation; Photography; *Recognition (Psychology) |
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Abstract |
Success in tasks requiring categorization of pictorial stimuli does not prove that a subject understands what the pictures stand for. The ability to achieve representational insight is by no means a trivial one because it exceeds mere detection of 2-D features present in both the pictorial images and their referents. So far, evidence for such an ability in nonhuman species is weak and inconclusive. Here, the authors report evidence of representational insight in pigeons. After being trained on pictures of incomplete human figures, the birds responded significantly more to pictures of the previously missing parts than to nonrepresentative stimuli, which demonstrates that they actually recognized the pictures' representational content. |
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Department for Behavior, Neurobiology and Cognition, University of Vienna, Austria. ulrike.aust@univie.ac.at |
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0097-7403 |
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PMID:16634663 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2759 |
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Author |
Carroll, J.; Murphy, C.J.; Neitz, M.; Hoeve, J.N.; Neitz, J. |
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Title |
Photopigment basis for dichromatic color vision in the horse |
Type |
Journal Article |
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Year |
2001 |
Publication |
Journal of Vision |
Abbreviated Journal |
J Vis |
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Volume |
1 |
Issue |
2 |
Pages |
80-87 |
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Keywords |
Adaptation, Physiological; Animals; Color Perception/*physiology; Cones (Retina)/chemistry/*physiology; Electroretinography; Horses/*physiology; Photic Stimulation; Phototransduction/physiology; Retinal Pigments/analysis/*physiology; Visual Perception/physiology |
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Abstract |
Horses, like other ungulates, are active in the day, at dusk, dawn, and night; and, they have eyes designed to have both high sensitivity for vision in dim light and good visual acuity under higher light levels (Walls, 1942). Typically, daytime activity is associated with the presence of multiple cone classes and color-vision capacity (Jacobs, 1993). Previous studies in other ungulates, such as pigs, goats, cows, sheep and deer, have shown that they have two spectrally different cone types, and hence, at least the photopigment basis for dichromatic color vision (Neitz & Jacobs, 1989; Jacobs, Deegan II, Neitz, Murphy, Miller, & Marchinton, 1994; Jacobs, Deegan II, & Neitz, 1998). Here, electroretinogram flicker photometry was used to measure the spectral sensitivities of the cones in the domestic horse (Equus caballus). Two distinct spectral mechanisms were identified and are consistent with the presence of a short-wavelength-sensitive (S) and a middle-to-long-wavelength-sensitive (M/L) cone. The spectral sensitivity of the S cone was estimated to have a peak of 428 nm, while the M/L cone had a peak of 539 nm. These two cone types would provide the basis for dichromatic color vision consistent with recent results from behavioral testing of horses (Macuda & Timney, 1999; Macuda & Timney, 2000; Timney & Macuda, 2001). The spectral peak of the M/L cone photopigment measured here, in vivo, is similar to that obtained when the gene was sequenced, cloned, and expressed in vitro (Yokoyama & Radlwimmer, 1999). Of the ungulates that have been studied to date, all have the photopigment basis for dichromatic color vision; however, they differ considerably from one another in the spectral tuning of their cone pigments. These differences may represent adaptations to the different visual requirements of different species. |
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Department of Cell Biology, Neurobiology & Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA |
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1534-7362 |
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Notes |
PMID:12678603 |
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no |
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Equine Behaviour @ team @ |
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4060 |
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Author |
Regolin, L.; Marconato, F.; Vallortigara, G. |
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Title |
Hemispheric differences in the recognition of partly occluded objects by newly hatched domestic chicks (Gallus gallus) |
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Journal Article |
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Year |
2004 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
7 |
Issue |
3 |
Pages |
162-170 |
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Keywords |
Animals; Discrimination Learning/physiology; Dominance, Cerebral/*physiology; Female; Form Perception/*physiology; Imprinting (Psychology)/*physiology; Pattern Recognition, Visual/*physiology; Photic Stimulation; Random Allocation; Vision, Monocular/*physiology |
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Domestic chicks are capable of perceiving as a whole objects partly concealed by occluders (“amodal completion”). In previous studies chicks were imprinted on a certain configuration and at test they were required to choose between two alternative versions of it. Using the same paradigm we now investigated the presence of hemispheric differences in amodal completion by testing newborn chicks with one eye temporarily patched. Separate groups of newly hatched chicks were imprinted binocularly: (1) on a square partly occluded by a superimposed bar, (2) on a whole or (3) on an amputated version of the square. At test, in monocular conditions, each chick was presented with a free choice between a complete and an amputated square. In the crucial condition 1, chicks tested with only their left eye in use chose the complete square (like binocular chicks would do); right-eyed chicks, in contrast, tended to choose the amputated square. Similar results were obtained in another group of chicks imprinted binocularly onto a cross (either occluded or amputated in its central part) and required to choose between a complete or an amputated cross. Left-eyed and binocular chicks chose the complete cross, whereas right-eyed chicks did not choose the amputated cross significantly more often. These findings suggest that neural structures fed by the left eye (mainly located in the right hemisphere) are, in the chick, more inclined to a “global” analysis of visual scenes, whereas those fed by the right eye seem to be more inclined to a “featural” analysis of visual scenes. |
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Department of General Psychology, University of Padova, Via Venezia 8, 35131, Padova, Italy. lucia.regolin@unipd.it |
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1435-9448 |
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Notes |
PMID:15241654 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2519 |
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Author |
Acuna, B.D.; Sanes, J.N.; Donoghue, J.P. |
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Title |
Cognitive mechanisms of transitive inference |
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Journal Article |
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Year |
2002 |
Publication |
Experimental brain research. Experimentelle Hirnforschung. Experimentation cerebrale |
Abbreviated Journal |
Exp Brain Res |
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Volume |
146 |
Issue |
1 |
Pages |
1-10 |
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Keywords |
Adolescent; Adult; Attention/*physiology; Cognition/*physiology; Female; Humans; Learning/physiology; Linear Models; Male; Photic Stimulation; Psychomotor Performance/physiology; Reaction Time/physiology |
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Abstract |
We examined how the brain organizes interrelated facts during learning and how the facts are subsequently manipulated in a transitive inference (TI) paradigm (e.g., if A<B and B<C, then A<C). This task determined features such as learned facts and behavioral goals, but the learned facts could be organized in any of several ways. For example, if one learns a list by operating on paired items, the pairs may be stored individually as separate facts and reaction time (RT) should decrease with learning. Alternatively, the pairs may be stored as a single, unified list, which may yield a different RT pattern. We characterized RT patterns that occurred as participants learned, by trial and error, the predetermined order of 11 shapes. The task goal was to choose the shape occurring closer to the end of the list, and feedback about correctness was provided during this phase. RT increased even as its variance decreased during learning, suggesting that the learnt knowledge became progressively unified into a single representation, requiring more time to manipulate as participants acquired relational knowledge. After learning, non-adjacent (NA) list items were presented to examine how participants reasoned in a TI task. The task goal also required choosing from each presented pair the item occurring closer to the list end, but without feedback. Participants could solve the TI problems by applying formal logic to the previously learnt pairs of adjacent items; alternatively, they could manipulate a single, unified representation of the list. Shorter RT occurred for NA pairs having more intervening items, supporting the hypothesis that humans employ unified mental representations during TI. The response pattern does not support mental logic solutions of applying inference rules sequentially, which would predict longer RT with more intervening items. We conclude that the brain organizes information in such a way that reflects the relations among the items, even if the facts were learned in an arbitrary order, and that this representation is subsequently used to make inferences. |
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Department of Neuroscience, Box 1953, Brown Medical School, Providence, RI 02912, USA |
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0014-4819 |
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PMID:12192572 |
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no |
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Call Number |
refbase @ user @ |
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602 |
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Author |
Cole, P.D.; Adamo, S.A. |
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Title |
Cuttlefish (Sepia officinalis: Cephalopoda) hunting behavior and associative learning |
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Journal Article |
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Year |
2005 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
8 |
Issue |
1 |
Pages |
27-30 |
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Keywords |
Animals; *Appetitive Behavior; *Association Learning; *Conditioning, Classical; Female; Male; *Mollusca; Photic Stimulation; *Predatory Behavior |
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Abstract |
Because most learning studies in cephalopods have been performed on octopods, it remains unclear whether such abilities are specific to octopus, or whether they correlate with having a larger and more centrally organized brain. To investigate associative learning in a different cephalopod, six sexually mature cuttlefish (Sepia officinalis) participated in a counterbalanced, within-subjects, appetitive, classical conditioning procedure. Two plastic spheres (conditioned stimuli, CSs), differing in brightness, were presented sequentially. Presentation of the CS+ was followed 5 s later by a live feeder fish (unconditioned stimulus, US). Cuttlefish began to attack the CS+ with the same type of food-acquisition seizures used to capture the feeder fish. After seven blocks of training (42 presentations of each CS) the difference in seizure probability between CS+ and CS- trials more than doubled; and was found to be significantly higher in late versus early blocks. These results indicate that cuttlefish exhibit autoshaping under some conditions. The possible ecological significance of this type of learning is briefly discussed. |
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Department of Psychology, Dalhousie University Halifax, Nova Scotia, Canada |
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1435-9448 |
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PMID:15592760 |
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no |
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Equine Behaviour @ team @ |
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2500 |
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Author |
Wasserman, E.A.; Gagliardi, J.L.; Cook, B.R.; Kirkpatrick-Steger, K.; Astley, S.L.; Biederman, I. |
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Title |
The pigeon's recognition of drawings of depth-rotated stimuli |
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Journal Article |
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Year |
1996 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
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Volume |
22 |
Issue |
2 |
Pages |
205-221 |
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Keywords |
Animals; Cognition/*physiology; Columbidae; Discrimination (Psychology); Form Perception/*physiology; Learning/*physiology; Photic Stimulation; Rotation |
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Abstract |
Four experiments used a four-choice discrimination learning paradigm to explore the pigeon's recognition of line drawings of four objects (an airplane, a chair, a desk lamp, and a flashlight) that were rotated in depth. The pigeons reliably generalized discriminative responding to pictorial stimuli over all untrained depth rotations, despite the bird's having been trained at only a single depth orientation. These generalization gradients closely resembled those found in prior research that used other stimulus dimensions. Increasing the number of different vantage points in the training set from one to three broadened the range of generalized testing performance, with wider spacing of the training orientations more effectively broadening generalized responding. Template and geon theories of visual recognition are applied to these empirical results. |
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Department of Psychology, University of Iowa, Iowa City 52242-1407, USA. ed-wasserman@uiowa.educ |
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0097-7403 |
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PMID:8618103 |
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no |
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Call Number |
Equine Behaviour @ team @ |
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2780 |
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