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Author Adler, L.L.; Adler, H.E. url  doi
openurl 
  Title Ontogeny of observational learning in the dog (Canis familiaris) Type Journal Article
  Year (up) 1977 Publication Developmental Psychobiology Abbreviated Journal Dev Psychobiol  
  Volume 10 Issue 3 Pages 267-271  
  Keywords Animals; Dogs/*physiology; Female; Learning/*physiology; Male; Vision, Ocular/physiology  
  Abstract A split-litter technique was used to test observational learning in 4 litters of Miniature Dachshund puppies, 21, 28, 38, and 60 days old at the beginning of the experiment. In one side of a duplicate cage, one puppy of a litter, the demonstrator, learned to pull in a food cart on a runner by means of a ribbon, while another puppy, the observer, watched from an adjacent compartment, separated by a wire screen. Observational learning was demonstrated by the saving in time for the 1st trial when the observer was given the same problem to solve. Maturation, particularly the development of visual function and motor coordination, set a lower age limit for the emergence of observational learning.  
  Address  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0012-1630 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:863122 Approved no  
  Call Number Equine Behaviour @ team @ Serial 5186  
Permanent link to this record
 

 
Author van Niekerk, H.P. openurl 
  Title Ethological studies within the man-horse relationship Type Journal Article
  Year (up) 1980 Publication Journal of the South African Veterinary Association Abbreviated Journal J S Afr Vet Assoc  
  Volume 51 Issue 4 Pages 237-238  
  Keywords Animals; Behavior, Animal; Hearing; Horses/*physiology; Humans; Smell; Taste; Touch; Vision  
  Abstract Certain aspects of ethology and the horse's senses are discussed to bring about a better understanding between man and horse. Furthermore the behaviour of horses with respect to housing, feeding, breeding, veterinary treatment and work are considered.  
  Address  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1019-9128 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:7241494 Approved no  
  Call Number refbase @ user @ Serial 1960  
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Author Wolfe, J.M. openurl 
  Title Hidden visual processes Type Journal Article
  Year (up) 1983 Publication Scientific American Abbreviated Journal Sci Am  
  Volume 248 Issue 2 Pages 94-103  
  Keywords Color Perception/*physiology; Humans; Motion Perception/physiology; Ocular Physiology; Vision; Visual Perception/*physiology  
  Abstract Isoluminant stimulus is an image whose edges are defined only by a change in color, not by change in brightness. The stimulus here is imperfect: the blue parts and the green parts of the image are only as nearly equal in brightness as they can be on the printed page. Moreover, the change in brightness beyond the edge of the page is apparent, and so is the fact that the reader is holding the magazine at reading distance. When such cues are removed under laboratory conditions, subjects faced with an isoluminant stimulus prove unable to bring its edges into focus. This deficiency contributes to making a familiar face hard to recognize. The experiment indicates that the brain process underlying visual accommodation (the focusing of the eyes) cannot “see” color; it is a hidden process distinct from the processes that lead to perception. The image shows Groucho Marx as he appeared in the motion picture Horse Feathers.  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0036-8733 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:6836258 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4066  
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Author Loveland, K.A. doi  openurl
  Title Self-recognition in the bottlenose dolphin: ecological considerations Type Journal Article
  Year (up) 1995 Publication Consciousness and Cognition Abbreviated Journal Conscious Cogn  
  Volume 4 Issue 2 Pages 254-257  
  Keywords Animals; Attention; *Awareness; Body Image; Dolphins/*psychology; Exploratory Behavior; Female; Male; *Self Concept; *Social Environment; Species Specificity; Television; *Visual Perception  
  Abstract  
  Address Department of Psychiatry and Behavioral Sciences, University of Texas Medical School, Houston 77025, 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 1053-8100 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:8521267 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4161  
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Author Hart, D.; Whitlow, J.W.J. openurl 
  Title The experience of self in the bottlenose dolphin Type Journal Article
  Year (up) 1995 Publication Consciousness and Cognition Abbreviated Journal Conscious Cogn  
  Volume 4 Issue 2 Pages 244-247  
  Keywords Animal Communication; Animals; *Awareness; Body Image; Dolphins/*psychology; Female; Humans; Male; *Self Concept; Social Behavior; Species Specificity; *Television; *Visual Perception  
  Abstract Marten and Psarakos have presented some evidence which suggests that objective self-awareness and possibly representations of self may characterize the dolphins' experience of self. Their research demonstrates the possibility of similarities in the sense of self between primate species and dolphins, although whether dolphins have subjective self-awareness, personal memories, and theories of self--all important facets of the sense of self in humans--was not examined. Clearly, even this limited evidence was difficult to achieve; the difficulties in adapting methods and coding behavior are quite apparent in their report. Future progress, however, may depend upon clarification of what are the necessary components for a sense of self and an explication of how these might be reflected in dolphin behavior. We are mindful of the authors' point (pp. 219 and 220) that the dolphin lives more in an acoustic than a visual environment. Thus, while tasks relying upon vision may reveal the presence or absence of the sense of self in primates, it might well be the case that in dolphins self-related experiences might be better revealed in auditory tasks. But then, what is the nature of human self-awareness in terms of audition? While both conceptual and methodological hurdles remain, Marten and Psarakos have demonstrated that important questions can be asked about the minds and phenomenal worlds of nonanthropoid species.  
  Address Department of Psychology, Rutgers University, Camden, New Jersey 08102, USA  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1053-8100 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:8521264 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4162  
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Author Anderson, J.R. doi  openurl
  Title Self-recognition in dolphins: credible cetaceans; compromised criteria, controls, and conclusions Type Journal Article
  Year (up) 1995 Publication Consciousness and Cognition Abbreviated Journal Conscious Cogn  
  Volume 4 Issue 2 Pages 239-243  
  Keywords Animal Communication; Animals; *Awareness; Discrimination Learning; Dolphins/*psychology; Female; Male; Orientation; *Self Concept; Social Behavior; *Television; *Visual Perception  
  Abstract  
  Address Laboratoire de Psychophysiologie, CNRS URA 1295, Universite Louis Pasteur, Strasbourg, France  
  Corporate Author Thesis  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1053-8100 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:8521263 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4163  
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Author Marten, K.; Psarakos, S. doi  openurl
  Title Using self-view television to distinguish between self-examination and social behavior in the bottlenose dolphin (Tursiops truncatus) Type Journal Article
  Year (up) 1995 Publication Consciousness and Cognition Abbreviated Journal Conscious Cogn  
  Volume 4 Issue 2 Pages 205-224  
  Keywords Animal Communication; Animals; *Attention; Discrimination Learning; Dolphins/*psychology; Female; Male; *Self Concept; *Social Behavior; *Television; *Visual Perception  
  Abstract In mirror mark tests dolphins twist, posture, and engage in open-mouth and head movements, often repetitive. Because postures and an open mouth are also dolphin social behaviors, we used self-view television as a manipulatable mirror to distinguish between self-examination and social behavior. Two dolphins were exposed to alternating real-time self-view (“mirror mode”) and playback of the same to determine if they distinguished between them. The adult male engaged in elaborate open-mouth behaviors in mirror mode, but usually just watched when played back the same material. Mirror mode behavior was also compared to interacting with real dolphins (controls). Mark tests were conducted, as well as switches from front to side self-views to see if the dolphins turned. They presented marked areas to the self-view television and turned. The results suggest self-examination over social behavior.  
  Address Earthtrust, Kailua, Hawaii 96734, USA  
  Corporate Author Thesis  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1053-8100 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:8521259 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4164  
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Author Lomas, C.A.; Piggins, D.; Phillips, C.J.C. url  doi
openurl 
  Title Visual awareness Type Journal Article
  Year (up) 1998 Publication Applied Animal Behaviour Science Abbreviated Journal Appl. Anim. Behav. Sci.  
  Volume 57 Issue 3-4 Pages 247-257  
  Keywords Visual awareness; Colour vision; Rhythm  
  Abstract Awareness varies between different species and humans can never truly appreciate what it is like to be another individual, either of the same species or another. Visual perceptual faculties provide some evidence of the extent to which domesticated animals derive information from objects in their environment, whilst changes in behaviour resulting from different visual stimuli can also provide valuable information on the state of visual awareness. Extensive processing of potentially visual information must occur in all domesticated species, but is much less well understood than purely sensory based information. For example, sensory aspects of colour vision are reasonably well understood, but the role of wavelength variables in an animal's cognition and its colour experience is not clear. Considerable use is made of diurnal changes in photoperiod to synchronise endogenous rhythms to particular times of the day and the year. Variation in light intensity in natural images is also important for social reasons for animals to be able to discriminate between, e.g., different faces, but little is known about intensity preferences or the effects of intensity on behaviour. It appears likely that in many cases visual stimuli represent some of the most important influences on an animal's awareness, either alone or in combination with, e.g., olfactory cues. However, a much greater understanding of their processing is required before we can make useful deductions about visual awareness in domesticated animals.  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4309  
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Author Harman, A.M.; Moore, S.; Hoskins, R.; Keller, P. doi  openurl
  Title Horse vision and an explanation for the visual behaviour originally explained by the 'ramp retina' Type Journal Article
  Year (up) 1999 Publication Equine veterinary journal Abbreviated Journal Equine Vet J  
  Volume 31 Issue 5 Pages 384-390  
  Keywords Animals; Behavior, Animal; Cell Count; Eye/*anatomy & histology; Ganglia, Sensory/cytology; Horses/*physiology; Refractive Errors/veterinary; Retina/cytology/*physiology; Vision/*physiology; Visual Acuity; Visual Fields  
  Abstract Here we provide confirmation that the 'ramp retina' of the horse, once thought to result in head rotating visual behaviour, does not exist. We found a 9% variation in axial length of the eye between the streak region and the dorsal periphery. However, the difference was in the opposite direction to that proposed for the 'ramp retina'. Furthermore, acuity in the narrow, intense visual streak in the inferior retina is 16.5 cycles per degree compared with 2.7 cycles per degree in the periphery. Therefore, it is improbable that the horse rotates its head to focus onto the peripheral retina. Rather, the horse rotates the nose up high to observe distant objects because binocular overlap is oriented down the nose, with a blind area directly in front of the forehead.  
  Address Department of Psychology, University of Western Australia, Nedlands, Australia  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0425-1644 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:10505953 Approved no  
  Call Number refbase @ user @ Serial 836  
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Author Macuda, T.; Timney, B. url  openurl
  Title Luminance and chromatic discrimination in the horse (Equus caballus) Type Journal Article
  Year (up) 1999 Publication Behavioural Processes Abbreviated Journal Behav. Process.  
  Volume 44 Issue 3 Pages 301-307  
  Keywords Colour vision; Chromatic discrimination; Luminance discrimination; Horse  
  Abstract Equine colour vision was measured under conditions that minimised the possibility of animals using brightness cues to make chromatic discriminations. In a two-stage study, we first obtained luminance discrimination functions for achromatic targets then tested for chromatic discrimination over a range of target luminances. Horses were trained on a two-choice discrimination task. The positive stimulus was varied in luminance and/or colour using neutral density and broad band colour filters. The negative stimulus appeared as a uniform grey. In the brightness discrimination task, the horses performed well at large luminance differences but their percentage of correct responses declined to near chance levels at differences of less than 0.2 log units. In addition, a decrement in performance was noted at luminance differences of less than 0.2 log units for green and yellow chromatic discrimination functions, suggesting that horses cannot easily discriminate yellow and green from grey. However, the chromatic discrimination functions for red and blue showed that animals performed very well across the full range of target luminances. These results suggest that horses are at least dichromats.  
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  Area Expedition Conference  
  Notes Approved no  
  Call Number refbase @ user @ Serial 844  
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