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Author Cantlon, J.F.; Brannon, E.M. url  openurl
  Title How Much Does Number Matter to a Monkey (Macaca mulatta)? Type Journal Article
  Year 2007 Publication Journal of Experimental Psychology: Animal Behavior Processes Abbreviated Journal  
  Volume 33 Issue 1 Pages 32-41  
  Keywords numerical cognition; Weber's law; nonhuman primates; numerosity  
  Abstract Although many animal species can represent numerical values, little is known about how salient number is relative to other object properties for nonhuman animals. In one hypothesis, researchers propose that animals represent number only as a last resort, when no other properties differentiate stimuli. An alternative hypothesis is that animals automatically, spontaneously, and routinely represent the numerical attributes of their environments. The authors compared the influence of number versus that of shape, color, and surface area on rhesus monkeys' (Macaca mulatta) decisions by testing them on a matching task with more than one correct answer: a numerical match and a nonnumerical (color, surface area, or shape) match. The authors also tested whether previous laboratory experience with numerical discrimination influenced a monkey's propensity to represent number. Contrary to the last-resort hypothesis, all monkeys based their decisions on numerical value when the numerical ratio was favorable.  
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  Call Number Equine Behaviour @ team @ Serial 2891  
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Author Gray, E.R.; Spetch, M.L. url  openurl
  Title Pigeons Encode Absolute Distance but Relational Direction From Landmarks and Walls Type Journal Article
  Year 2006 Publication Journal of Experimental Psychology: Animal Behavior Processes Abbreviated Journal  
  Volume 32 Issue 4 Pages 474-480  
  Keywords spatial cognition; absolute distance; relational direction; landmark configurations  
  Abstract In recent studies, researchers have examined animals' use of absolute or relational distances in finding a hidden goal. When trained with an array of landmarks, most animals use the default strategy of searching at an absolute distance from 1 or more landmarks. In contrast, when trained in enclosures, animals often use the relationship among walls. In the present study, pigeons were trained to find the center of an array of landmarks or a set of short walls that did not block external cues. Expansion tests showed that both groups of pigeons primarily used an absolute distance strategy. However, on rotational tests, pigeons continued to search in the center of the array, suggesting that direction was learned in relation to array.  
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  Call Number Equine Behaviour @ team @ Serial 2894  
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Author Custance DM; Whiten A; Bard KA openurl 
  Title Can young chimpanzees imitate arbitrary actions? Hayes and Hayes (1952) revisited Type Journal Article
  Year 1995 Publication Behavior Abbreviated Journal  
  Volume 132 Issue Pages 839  
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  Call Number Equine Behaviour @ team @ Serial 2990  
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Author Saleh, N.; Chittka, L. doi  openurl
  Title The importance of experience in the interpretation of conspecific chemical signals Type Journal Article
  Year 2006 Publication Behavioral Ecology and Sociobiology Abbreviated Journal Behav. Ecol. Sociobiol.  
  Volume 61 Issue 2 Pages 215-220  
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  Abstract Abstract  Foraging bumblebees scent mark flowers with hydrocarbon secretions. Several studies have found these scent marks act as a repellent to bee foragers. This was thought to minimize the risk of visiting recently depleted flowers. Some studies, however, have found a reverse, attractive effect of scent marks left on flowers. Do bees mark flowers with different scents, or could the same scent be interpreted differently depending on the bees? previous experience with reward levels in flowers? We use a simple experimental design to investigate if the scent marks can become attractive when bees forage on artificial flowers that remain rewarding upon the bees? return after having depleted them. We contrast this with bees trained in the more natural scenario where revisits to recently emptied flowers are unrewarding. The bees association between scent mark and reward value was tested with flowers scent marked from the same source. We find that the bees experience with the level of reward determines how the scent mark is interpreted: the same scent can act as both an attractant and a repellent. How experience and learning influence the interpretation of the meaning of chemical signals deposited by animals for communication has rarely been investigated.  
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  Call Number Equine Behaviour @ team @ Serial 3150  
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Author Dugatkin, L.A.; Alfieri, M. doi  openurl
  Title Guppies and the TIT FOR TAT strategy: preference based on past interaction Type Journal Article
  Year 1991 Publication Behavioral Ecology and Sociobiology Abbreviated Journal Behav. Ecol. Sociobiol.  
  Volume 28 Issue 4 Pages 243-246  
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  Abstract The evolution of cooperation requires either (a) nonrandom interactions, such that cooperators preferentially interact with other cooperators, or (b) conditional behaviors, such that individuals act cooperatively primarily towards other cooperators. Although these conditions can be met without assuming sophisticated animal cognition, they are more likely to be met if animals can remember individuals with whom they have interacted, associate past interactions with these individuals, and base future behavior on this information. Here we show that guppies (Poecilia reticulata), in the context of predator inspection behavior, can identify and remember (for at least 4 h) the “more cooperative” among two conspecifics and subsequently choose to be near these individuals in future encounters.  
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  Call Number Equine Behaviour @ team @ Serial 3397  
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Author Sluyter F.; Arseneault L.; Moffitt T.E.; Veenema A.H.; de Boer S.; Koolhaas J.M. url  openurl
  Title Toward an Animal Model for Antisocial Behavior: Parallels Between Mice and Humans: Aggression Type Journal Article
  Year 2003 Publication Behavior Genetics Abbreviated Journal  
  Volume 33 Issue Pages 563-574  
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  Call Number refbase @ user @ Serial 3497  
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Author Kurtzman H.S.; Church R.M.; Crystal J.D. url  openurl
  Title Data archiving for animal cognition research: Report of an NIMH workshop Type Journal Article
  Year 2002 Publication Animal Learning & Behavior Abbreviated Journal  
  Volume 30 Issue Pages 405-412  
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  Call Number refbase @ user @ Serial 3504  
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Author Boitani, L. openurl 
  Title Patterns of homesites attendance in two Minnesota wolf packs Type Book Chapter
  Year 1982 Publication Wolves of the World: Perspectives of Behavior, Ecology and Conservation Abbreviated Journal  
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  Publisher Noyes, Park Ridge Place of Publication New York Editor Harrington, F.H.; Paquet, P.C.  
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  Call Number Equine Behaviour @ team @ Boitani1982 Serial 6474  
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Author Visser, E.K.; van Reenen, C.G.; van der Werf, J.T.N.; Schilder, M.B.H.; Knaap, J.H.; Barneveld, A.; Blokhuis, H.J. url  doi
openurl 
  Title Heart rate and heart rate variability during a novel object test and a handling test in young horses Type Journal Article
  Year 2002 Publication Physiology & Behavior Abbreviated Journal Physiol. Behav.  
  Volume 76 Issue 2 Pages 289-296  
  Keywords Heart rate; Heart rate variability; Consistency; Behavioral tests; Temperament; Emotionality; Horses  
  Abstract Forty-one Dutch Warmblood immature horses were used in a study to quantify temperamental traits on the basis of heart rate (HR) and heart rate variability (HRV) measures. Half of the horses received additional training from the age of 5 months onwards; the other half did not. Horses were tested at 9, 10, 21 and 22 months of age in a novel object and a handling test. During the tests, mean HR and two heart variability indices, e.g. standard deviation of beat-to-beat intervals (SDRR) and root mean square of successive beat-to-beat differences (rMSSD), were calculated and expressed as response values to baseline measures. In both tests, horses showed at all ages a significant increase in mean HR and decrease in HRV measures, which suggests a marked shift of the balance of the autonomic nervous system towards a sympathetic dominance. In the novel object test, this shift was more pronounced in horses that had not been trained. Furthermore, statistical analysis showed that the increase in mean HR could not be entirely explained by the physical activity. The additional increase in HR, the nonmotor HR, was more pronounced in the untrained horses compared to the trained. Hence, it is suggested that this nonmotor HR might be due to the level of emotionality. HR variables showed consistency between years, as well as within the second year. These tests bring about a HR response in horses, part of which may indicate a higher level of emotionality; and horses show individual consistency of these HR variables over ages. Therefore, it is concluded that mean HR and HRV measures used with these tests quantify certain aspects of a horse's temperament.  
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  Call Number refbase @ user @ Serial 320  
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Author Griffiths, D.P.; Clayton, N.S. url  doi
openurl 
  Title Testing episodic memory in animals: A new approach Type Journal Article
  Year 2001 Publication Physiology & Behavior Abbreviated Journal Physiol. Behav.  
  Volume 73 Issue 5 Pages 755-762  
  Keywords Episodic memory; Food-caching; Animal models  
  Abstract Episodic memory involves the encoding and storage of memories concerned with unique personal experiences and their subsequent recall, and it has long been the subject of intensive investigation in humans. According to Tulving's classical definition, episodic memory “receives and stores information about temporally dated episodes or events and temporal-spatial relations among these events.” Thus, episodic memory provides information about the `what' and `when' of events (`temporally dated experiences') and about `where' they happened (`temporal-spatial relations'). The storage and subsequent recall of this episodic information was thought to be beyond the memory capabilities of nonhuman animals. Although there are many laboratory procedures for investigating memory for discrete past episodes, until recently there were no previous studies that fully satisfied the criteria of Tulving's definition: they can all be explained in much simpler terms than episodic memory. However, current studies of memory for cache sites in food-storing jays provide an ethologically valid model for testing episodic-like memory in animals, thereby bridging the gap between human and animal studies memory. There is now a pressing need to adapt these experimental tests of episodic memory for other animals. Given the potential power of transgenic and knock-out procedures for investigating the genetic and molecular bases of learning and memory in laboratory rodents, not to mention the wealth of knowledge about the neuroanatomy and neurophysiology of the rodent hippocampus (a brain area heavily implicated in episodic memory), an obvious next step is to develop a rodent model of episodic-like memory based on the food-storing bird paradigm. The development of a rodent model system could make an important contribution to our understanding of the neural, molecular, and behavioral mechanisms of mammalian episodic memory.  
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  Notes (up) Approved no  
  Call Number refbase @ user @ Serial 401  
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