scholarly journals Domestic dogs' (Canis familiaris) understanding of Projected Video Images of a Human Demonstrator in an Object-choice Task

Ethology ◽  
2013 ◽  
Vol 119 (10) ◽  
pp. 898-906 ◽  
Author(s):  
András Péter ◽  
Ádám Miklósi ◽  
Péter Pongrácz
Keyword(s):  
Canis Familiaris ◽  
Choice Task ◽  
Domestic Dogs ◽  
Object Choice ◽  
Video Images ◽  
Object Choice Task

scholarly journals Working Smarter Not Harder: Oxytocin Increases Domestic Dogs’ (Canis familiaris) Accuracy, but Not Attempts, on an Object Choice Task

2019 ◽  
Vol 10 ◽  
Author(s):  
Jessica Lee Oliva ◽  
Manuel Mengoli ◽  
Tiago Mendonça ◽  
Alessandro Cozzi ◽  
Patrick Pageat ◽  
...  
Keyword(s):  
Canis Familiaris ◽  
Choice Task ◽  
Domestic Dogs ◽  
Object Choice ◽  
Object Choice Task

scholarly journals Do pet dogs ( Canis familiaris ) follow ostensive and non-ostensive human gaze to distant space and to objects?

2017 ◽  
Vol 4 (7) ◽  
pp. 170349 ◽  
Author(s):  
Charlotte Duranton ◽  
Friederike Range ◽  
Zsófia Virányi
Keyword(s):  
Canis Familiaris ◽  
Choice Task ◽  
Chance Level ◽  
Gaze Following ◽  
Food Location ◽  
Object Choice ◽  
Growing Body ◽  
Object Choice Task ◽  
Better Than ◽  
Gaze Cues

Dogs are renowned for being skilful at using human-given communicative cues such as pointing. Results are contradictory, however, when it comes to dogs' following human gaze, probably due to methodological discrepancies. Here we investigated whether dogs follow human gaze to one of two food locations better than into distant space even after comparable pre-training. In Experiments 1 and 2, the gazing direction of dogs was recorded in a gaze-following into distant space and in an object-choice task where no choice was allowed, in order to allow a direct comparison between tasks, varying the ostensive nature of the gazes. We found that dogs only followed repeated ostensive human gaze into distant space, whereas they followed all gaze cues in the object-choice task. Dogs followed human gaze better in the object-choice task than when there was no obvious target to look at. In Experiment 3, dogs were tested in another object-choice task and were allowed to approach a container. Ostensive cues facilitated the dogs’ following gaze with gaze as well as their choices: we found that dogs in the ostensive group chose the indicated container at chance level, whereas they avoided this container in the non-ostensive group. We propose that dogs may perceive the object-choice task as a competition over food and may interpret non-ostensive gaze as an intentional cue that indicates the experimenter's interest in the food location she has looked at. Whether ostensive cues simply mitigate the competitive perception of this situation or they alter how dogs interpret communicative gaze needs further investigation. Our findings also show that following gaze with one's gaze and actually choosing one of the two containers in an object-choice task need to be considered as different variables. The present study clarifies a number of questions related to gaze-following in dogs and adds to a growing body of evidence showing that human ostensive cues can strongly modify dog behaviour.

Conspecific discrimination in an object-choice task in African grey parrots (Psittacus erithacus)

2009 ◽  
Vol 82 (1) ◽  
pp. 75-77 ◽  
Author(s):  
Nicolas Giret ◽  
Marie Monbureau ◽  
Michel Kreutzer ◽  
Dalila Bovet
Keyword(s):  
Choice Task ◽  
Psittacus Erithacus ◽  
Object Choice ◽  
Object Choice Task

Capuchin monkeys’ use of human and conspecific cues to solve a hidden object-choice task

2017 ◽  
Vol 20 (5) ◽  
pp. 985-998 ◽  
Author(s):  
Jennifer L. Essler ◽  
Lindsay P. Schwartz ◽  
Mattea S. Rossettie ◽  
Peter G. Judge
Keyword(s):  
Choice Task ◽  
Capuchin Monkeys ◽  
Object Choice ◽  
Object Choice Task ◽  
Conspecific Cues

scholarly journals Juvenile domestic pigs (Sus scrofa domestica) use human-given cues in an object choice task

2013 ◽  
Vol 17 (3) ◽  
pp. 701-713 ◽  
Author(s):  
Christian Nawroth ◽  
Mirjam Ebersbach ◽  
Eberhard von Borell
Keyword(s):  
Sus Scrofa ◽  
Choice Task ◽  
Domestic Pigs ◽  
Object Choice ◽  
Object Choice Task ◽  
Sus Scrofa Domestica

scholarly journals Captive gibbons (Hylobatidae) use different referential cues in an object-choice task: insights into lesser ape cognition and manual laterality

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e5348 ◽  
Author(s):  
Kai R. Caspar ◽  
Larissa Mader ◽  
Fabian Pallasdies ◽  
Miriam Lindenmeier ◽  
Sabine Begall
Keyword(s):  
Visual Cues ◽  
Population Level ◽  
Great Apes ◽  
Choice Task ◽  
Primate Species ◽  
Success Rates ◽  
Human Communication ◽  
Object Choice ◽  
Object Choice Task ◽  
Hand Preferences

Background Utilization of visual referential cues by non-human primates is a subject of constant scientific interest. However, only few primate species, mostly great apes, have been studied thoroughly in that regard, rendering the understanding of phylogenetic influences on the underlying cognitive patterns difficult. Methods We tested six species of captive gibbons in an object-choice task (n = 11) for their ability to interpret two different pointing gestures, a combination of body orientation and gaze direction as well as glancing as referential cues. Hand preferences were tested in the object-choice task and in a bimanual tube task (n = 18). Results We found positive responses to all signals except for the glancing cue at the individual as well as at the group level. The gibbons’ success rates partially exceed results reported for great apes in comparable tests and appear to be similarly influenced by prior exposure to human communicative cues. Hand preferences exhibited by the gibbons in the object-choice task as well as in a bimanual tube task suggest that crested gibbons (Nomascus sp.) are strongly lateralized at individual but not at population level for tasks involving object manipulation. Discussion Based on the available data, it can be assumed that the cognitive foundations to utilize different visual cues essential to human communication are conserved in extant hominoids and can be traced back at least to the common ancestor of great and lesser apes. However, future studies have to further investigate how the social environment of gibbons influences their ability to exploit referential signals. Gibbons’ manual laterality patterns appear to differ in several aspects from the situation found in great apes. While not extensive enough to allow for general conclusions about the evolution of hand preferences in gibbons or apes in general, our results add to the expanding knowledge on manual lateralization in the Hylobatidae.

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