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Author |
Pennisi, E. |
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Title |
Animal cognition. Man's best friend(s) reveal the possible roots of social intelligence |
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2006 |
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Science (New York, N.Y.) |
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Science |
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312 |
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5781 |
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1737 |
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Animals; *Cognition; Comprehension; Cooperative Behavior; Cues; Dogs/*psychology; *Evolution; *Intelligence; *Social Behavior |
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1095-9203 |
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PMID:16794056 |
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Equine Behaviour @ team @ |
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2835 |
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Author |
Pennisi, E. |
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Title |
Animal cognition. Social animals prove their smarts |
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2006 |
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Science (New York, N.Y.) |
Abbreviated Journal |
Science |
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312 |
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5781 |
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1734-1738 |
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Animals; *Behavior, Animal; *Birds; *Cognition; Comprehension; Cues; Food; Hominidae/*psychology; *Intelligence; Learning; Memory; *Social Behavior |
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1095-9203 |
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PMID:16794055 |
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Equine Behaviour @ team @ |
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2836 |
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Blaisdell, A.P.; Sawa, K.; Leising, K.J.; Waldmann, M.R. |
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Title |
Causal reasoning in rats |
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Journal Article |
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Year |
2006 |
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Science (New York, N.Y.) |
Abbreviated Journal |
Science |
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Volume |
311 |
Issue |
5763 |
Pages |
1020-1022 |
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Animals; *Association Learning; Bayes Theorem; *Cognition; Comprehension; Forecasting; Male; Rats; Rats, Long-Evans |
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Empirical research with nonhuman primates appears to support the view that causal reasoning is a key cognitive faculty that divides humans from animals. The claim is that animals approximate causal learning using associative processes. The present results cast doubt on that conclusion. Rats made causal inferences in a basic task that taps into core features of causal reasoning without requiring complex physical knowledge. They derived predictions of the outcomes of interventions after passive observational learning of different kinds of causal models. These competencies cannot be explained by current associative theories but are consistent with causal Bayes net theories. |
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Department of Psychology, University of California, Los Angeles, CA 90095, USA. blaisdell@psych.ucla.edu |
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1095-9203 |
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PMID:16484500 |
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refbase @ user @ |
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154 |
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Friederici, A.D.; Alter, K. |
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Title |
Lateralization of auditory language functions: a dynamic dual pathway model |
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Year |
2004 |
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Brain and Language |
Abbreviated Journal |
Brain Lang |
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89 |
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2 |
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267-276 |
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Auditory Pathways/physiology; Brain Mapping; Comprehension/*physiology; Dominance, Cerebral/*physiology; Frontal Lobe/*physiology; Humans; Nerve Net/physiology; Phonetics; Semantics; Speech Acoustics; Speech Perception/*physiology; Temporal Lobe/*physiology |
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Spoken language comprehension requires the coordination of different subprocesses in time. After the initial acoustic analysis the system has to extract segmental information such as phonemes, syntactic elements and lexical-semantic elements as well as suprasegmental information such as accentuation and intonational phrases, i.e., prosody. According to the dynamic dual pathway model of auditory language comprehension syntactic and semantic information are primarily processed in a left hemispheric temporo-frontal pathway including separate circuits for syntactic and semantic information whereas sentence level prosody is processed in a right hemispheric temporo-frontal pathway. The relative lateralization of these functions occurs as a result of stimulus properties and processing demands. The observed interaction between syntactic and prosodic information during auditory sentence comprehension is attributed to dynamic interactions between the two hemispheres. |
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Max Planck Institute of Cognitive Neuroscience, P.O. Box 500 355, 04303 Leipzig, Germany. angelafr@cns.mpg.de |
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0093-934X |
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PMID:15068909 |
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Equine Behaviour @ team @ |
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4722 |
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Author |
Scheider, L.; Kaminski, J.; Call, J.; Tomasello, M. |
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Title |
Do domestic dogs interpret pointing as a command? |
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Journal Article |
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Year |
2013 |
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Abbreviated Journal |
Animal Cognition |
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16 |
Issue |
3 |
Pages |
361-372 |
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Keywords |
Communication; Domestic dog; Pointing; Comprehension; Imperative |
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Domestic dogs comprehend human gestural communication flexibly, particularly the pointing gesture. Here, we examine whether dogs interpret pointing informatively, that is, as simply providing information, or rather as a command, for example, ordering them to move to a particular location. In the first study a human pointed toward an empty cup. In one manipulation, the dog either knew or did not know that the designated cup was empty (and that the other cup actually contained the food). In another manipulation, the human (as authority) either did or did not remain in the room after pointing. Dogs ignored the human’s gesture if they had better information, irrespective of the authority’s presence. In the second study, we varied the level of authority of the person pointing. Sometimes this person was an adult, and sometimes a young child. Dogs followed children’s pointing just as frequently as they followed adults’ pointing (and ignored the dishonest pointing of both), suggesting that the level of authority did not affect their behavior. Taken together these studies suggest that dogs do not see pointing as an imperative command ordering them to a particular location. It is still not totally clear, however, if they interpret it as informative or in some other way. |
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Springer-Verlag |
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1435-9448 |
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no |
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Equine Behaviour @ team @ |
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5666 |
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Author |
Gácsi, M.; Kara, E.; Belényi, B.; Topál, J.; Miklósi, Á. |
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Title |
The effect of development and individual differences in pointing comprehension of dogs |
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Journal Article |
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Year |
2009 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
12 |
Issue |
3 |
Pages |
471-479 |
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Keywords |
Age Factors; Analysis of Variance; Animals; *Association Learning; Attention; Chi-Square Distribution; Choice Behavior; *Comprehension; *Concept Formation; Dogs/*psychology; Female; *Gestures; Humans; Male; Orientation; Statistics, Nonparametric |
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In spite of the rather different procedures actually used in comparative studies to test the ability of different species to rely on the human pointing gesture, there is no debate on the high performance of dogs in such tasks. Very little is known, however, on the course through which they acquire this ability or the probable factors influencing the process. Important developmental questions have remained unsolved and also some methodological concerns should be addressed before we can convincingly argue for one interpretation or another. In this study we tested 180 dogs of different age (from 2 months to adults) to investigate their performance in the human distal momentary pointing gesture. The results, analyzed at both the group and the individual levels, showed no difference in the performance according to age, indicating that in dogs the comprehension of the human pointing may require only very limited and rapid early learning to fully develop. Interestingly, neither the keeping conditions nor the time spent in active interaction with the owner, and not even some special (agility) training for using human visual cues, had significant effect on the success and explained individual differences. The performance of the dogs was rather stable over time: during the 20 trials within a session and even when subsamples of different age were repeatedly tested. Considering that in spite of the general success at the group level, more than half of the dogs were not successful at the individual level, we revealed alternative “decision-making rules” other than following the pointing gesture of the experimenter. |
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Department of Ethology, Eotvos University, Budapest, Hungary. gm.art@t-online.hu |
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1435-9456 |
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PMID:19130102 |
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Equine Behaviour @ team @ |
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4969 |
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Author |
Huber, L.; Gajdon, G.K. |
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Title |
Technical intelligence in animals: the kea model |
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Journal Article |
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Year |
2006 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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9 |
Issue |
4 |
Pages |
295-305 |
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Animals; *Comprehension; *Intelligence; Models, Psychological; Observation; *Parrots; *Problem Solving; Psychological Theory; Social Environment; *Tool Use Behavior |
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The ability to act on information flexibly is one of the cornerstones of intelligent behavior. As particularly informative example, tool-oriented behavior has been investigated to determine to which extent nonhuman animals understand means-end relations, object affordances, and have specific motor skills. Even planning with foresight, goal-directed problem solving and immediate causal inference have been a focus of research. However, these cognitive abilities may not be restricted to tool-using animals but may be found also in animals that show high levels of curiosity, object exploration and manipulation, and extractive foraging behavior. The kea, a New Zealand parrot, is a particularly good example. We here review findings from laboratory experiments and field observations of keas revealing surprising cognitive capacities in the physical domain. In an experiment with captive keas, the success rate of individuals that were allowed to observe a trained conspecific was significantly higher than that of naive control subjects due to their acquisition of some functional understanding of the task through observation. In a further experiment using the string-pulling task, a well-probed test for means-end comprehension, we found the keas finding an immediate solution that could not be improved upon in nine further trials. We interpreted their performance as insightful in the sense of being sensitive of the relevant functional properties of the task and thereby producing a new adaptive response without trial-and-error learning. Together, these findings contribute to the ongoing debate on the distribution of higher cognitive skills in the animal kingdom by showing high levels of sensorimotor intelligence in animals that do not use tools. In conclusion, we suggest that the 'Technical intelligence hypothesis' (Byrne, Machiavellian intelligence II: extensions and evaluations, pp 289-211, 1997), which has been proposed to explain the origin of the ape/monkey grade-shift in intelligence by a selection pressure upon an increased efficiency in foraging behavior, should be extended, that is, applied to some birds as well. |
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Department for Behavior, Neurobiology and Cognition, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria. ludwig.huber@univie.ac.at |
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1435-9448 |
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PMID:16909237 |
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2085 |
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Topál, J.; Byrne, R.W.; Miklósi, Á.; Csányi, V. |
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Reproducing human actions and action sequences: “Do as I Do!” in a dog |
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Journal Article |
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Year |
2006 |
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Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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9 |
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4 |
Pages |
355-367 |
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Animals; *Comprehension; Conditioning, Operant; *Discrimination Learning; Dogs/*psychology; Humans; *Imitative Behavior; Male; *Serial Learning |
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We present evidence that a dog (Philip, a 4-year-old tervueren) was able to use different human actions as samples against which to match his own behaviour. First, Philip was trained to repeat nine human-demonstrated actions on command ('Do it!'). When his performance was markedly over chance in response to demonstration by one person, testing with untrained action sequences and other demonstrators showed some ability to generalise his understanding of copying. In a second study, we presented Philip with a sequence of human actions, again using the 'Do as I do' paradigm. All demonstrated actions had basically the same structure: the owner picked up a bottle from one of six places; transferred it to one of the five other places and then commanded the dog ('Do it!'). We found that Philip duplicated the entire sequence of moving a specific object from one particular place to another more often than expected by chance. Although results point to significant limitations in his imitative abilities, it seems that the dog could have recognized the action sequence, on the basis of observation alone, in terms of the initial state, the means, and the goal. This suggests that dogs might acquire abilities by observation that enhance their success in complex socio-behavioural situations. |
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Comparative Ethology Research Group, Hungarian Academy of Sciences, Budapest, Pazmany, P. 1/c H-1117, Hungary. kea@t-online.hu |
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1435-9448 |
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PMID:17024511 |
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Equine Behaviour @ team @ |
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2434 |
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Author |
Weir, A.A.S.; Kacelnik, A. |
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A New Caledonian crow (Corvus moneduloides) creatively re-designs tools by bending or unbending aluminium strips |
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Journal Article |
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Year |
2006 |
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Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
9 |
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4 |
Pages |
317-334 |
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Animals; *Comprehension; *Crows; Female; Learning; *Motor Skills; *Problem Solving; *Tool Use Behavior |
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Abstract |
Previous observations of a New Caledonian crow (Corvus moneduloides) spontaneously bending wire and using it as a hook [Weir et al. (2002) Science 297:981] have prompted questions about the extent to which these animals 'understand' the physical causality involved in how hooks work and how to make them. To approach this issue we examine how the same subject (“Betty”) performed in three experiments with novel material, which needed to be either bent or unbent in order to function to retrieve food. These tasks exclude the possibility of success by repetition of patterns of movement similar to those employed before. Betty quickly developed novel techniques to bend the material, and appropriately modified it on four of five trials when unbending was required. She did not mechanically apply a previously learned set of movements to the new situations, and instead sought new solutions to each problem. However, the details of her behaviour preclude concluding definitely that she understood and planned her actions: in some cases she probed with the unmodified tools before modifying them, or attempted to use the unmodified (unsuitable) end of the tool after modification. Gauging New Caledonian crows' level of understanding is not yet possible, but the observed behaviour is consistent with a partial understanding of physical tasks at a level that exceeds that previously attained by any other non-human subject, including apes. |
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Department of Zoology, South Parks Road, Oxford, OX1 3PS, UK. alex.weir@magdalen.oxon.org |
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1435-9448 |
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PMID:17024509 |
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Equine Behaviour @ team @ |
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2436 |
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Author |
Hunt, G.R.; Rutledge, R.B.; Gray, R.D. |
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The right tool for the job: what strategies do wild New Caledonian crows use? |
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Journal Article |
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Year |
2006 |
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Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
9 |
Issue |
4 |
Pages |
307-316 |
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Analysis of Variance; Animals; Comprehension; *Crows; Female; *Intelligence; Male; *Problem Solving; *Tool Use Behavior |
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New Caledonian crows Corvus moneduloides (NC crows) display sophisticated tool manufacture in the wild, but the cognitive strategy underlying these skills is poorly understood. Here, we investigate what strategy two free-living NC crows used in response to a tool-length task. The crows manufactured tools to extract food from vertical holes of different depths. The first tools they made in visits were of a similar length regardless of the hole depth. The typical length was usually too short to extract food from the deep holes, which ruled out a strategy of immediate causal inference on the first attempt in a trial. When the first tool failed, the crows made second tools significantly longer than the unsuccessful first tools. There was no evidence that the crows made the lengths of first tools to directly match hole depth. We argue that NC crows may generally use a two-stage heuristic strategy to solve tool problems and that performance on the first attempt in a trial is not necessarily the 'gold standard' for assessing folk physics. |
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Department of Psychology, University of Auckland, Private Bag 92019, Auckland, New Zealand. grhunt10@hotmail.com |
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1435-9448 |
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PMID:16941156 |
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Equine Behaviour @ team @ |
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2442 |
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