Manipulation of walnuts to facilitate opening by the great spotted woodpecker (Picoides major): is it tool use?

abstract：:We examined whether cats have a cross-modal representation of humans, using a cross-modal expectancy violation paradigm originally used with dogs by Adachi et al. (Anim Cogn 10:17-21, 2007). We compared cats living in houses and in cat cafés to assess the potential effect of postnatal experience. Cats were presented w...

journal_title：Animal cognition

authors： Takagi S,Arahori M,Chijiiwa H,Saito A,Kuroshima H,Fujita K

更新日期：2019-09-01 00:00:00

abstract：:The most robust sex differences in cognition across polygynous mammalian species are the sex-specific patterns of the use of spatial cues during encoding and orientation. In laboratory rats, wild rodents, and humans, females orient preferentially to the features and arrangement of local landmarks, while males preferen...

journal_title：Animal cognition

authors： Bettis TJ,Jacobs LF

更新日期：2013-11-01 00:00:00

abstract：:Currently, there is still no consensus about whether animals can ascribe mental states (Theory of Mind) to themselves and others. Showing animals can respond to cues that indicate whether another has visual access to a target or not, and that they are able to use this information as a basis for whom to rely on as an i...

journal_title：Animal cognition

authors： Catala A,Mang B,Wallis L,Huber L

更新日期：2017-07-01 00:00:00

abstract：:Two-dimensional (2D) displays of real three-dimensional (3D) objects are frequently used experimental tools in animal studies. Whether marmoset monkeys, with their highly diverse and complex anti-predation strategies, readily recognized 2D representations of potential threats has yet to be determined, as seen in other...

journal_title：Animal cognition

authors： Emile N,Barros M

更新日期：2009-09-01 00:00:00

abstract：:The trap-tube problem is used to assess whether an individual is able to foresee the outcome of its actions. To solve the task, an animal must use a tool to push a piece of food out of a tube, which has a trap along its length. An animal may learn to avoid the trap through a rule based on associative processes, e.g. u...

journal_title：Animal cognition

authors： Tebbich S,Seed AM,Emery NJ,Clayton NS

更新日期：2007-04-01 00:00:00

abstract：:The present study aimed at evaluating possible behavioural differences between guide dogs living in a kennel and interacting with a trainer and those living in a house and interacting with a blind person and their family, when they are faced with an unsolvable task. Fifty-two Labrador retrievers were tested: 13 Traine...

journal_title：Animal cognition

authors： Scandurra A,Prato-Previde E,Valsecchi P,Aria M,D'Aniello B

更新日期：2015-07-01 00:00:00

abstract：:Wild animals face the challenge of locating feeding sites distributed across broad spatial and temporal scales. Spatial memory allows animals to find a goal, such as a productive feeding patch, even when there are no goal-specific sensory cues available. Because there is little experimental information on learning and...

journal_title：Animal cognition

authors： Lührs ML,Dammhahn M,Kappeler PM,Fichtel C

更新日期：2009-07-01 00:00:00

abstract：:Inequity aversion refers to an attempt to reduce a perceived discrepancy between one's own input and output ratio (i.e. ratio between work invested and rewards obtained) and that of others. It has been proposed that inequity aversion might also play a role in the decision-making process of other animals. One issue, ho...

journal_title：Animal cognition

authors： Ostojić L,Clayton NS

更新日期：2013-09-01 00:00:00

abstract：:Our society is sustained by wide-ranging cooperation. If individuals are sensitive to others' gains and losses as well as the amount of labor, they can ensure future beneficial cooperative interaction. However, it is still an open question whether nonhuman primates are sensitive to others' labor. We asked this questio...

journal_title：Animal cognition

authors： Takimoto A,Fujita K

更新日期：2011-09-01 00:00:00

abstract：:Although the Piagetian framework has been used by numerous researchers to compare cognitive abilities of diverse species, the system is often criticized as implemented. I examine the various criticisms, suggest ways in which the system can be improved, and argue for the need for descriptive systems such as the Piageti...

journal_title：Animal cognition

authors： Pepperberg IM

更新日期：2002-09-01 00:00:00

abstract：:Very few experiments have studied the two item same/different relation in young human infants. This contrasts with an extensive animal literature. We tested young infants with two novel tasks designed specifically to provide convergent comparative measures. Each infant completed both tasks allowing an assessment of th...

journal_title：Animal cognition

authors： Addyman C,Mareschal D

更新日期：2010-11-01 00:00:00

abstract：:Some animals have the cognitive capacity to differentiate between different species of predators and generate different alarm calls in response. However, the presence of any addition information that might be encoded into alarm calls has been largely unexplored. In the present study, three similar-sized human females ...

journal_title：Animal cognition

authors： Slobodchikoff CN,Paseka A,Verdolin JL

更新日期：2009-05-01 00:00:00

abstract：:Gleaning information is a way for foragers to adjust their behavior in order to maximize their fitness. Information decreases the uncertainty about the environment and could help foragers to accurately estimate environmental characteristics. In a patchy resource, information sampled during previous patch visits is eff...

journal_title：Animal cognition

authors： Louâpre P,Pierre JS

更新日期：2012-05-01 00:00:00

abstract：:To assess the influence of different procedures on chimpanzees' performance in object-choice tasks, five adult chimpanzees were tested using three experimenter-given cues to food location: gazing, glancing, and pointing. These cues were delivered to the subjects in an identical fashion but were deployed within the con...

journal_title：Animal cognition

authors： Barth J,Reaux JE,Povinelli DJ

更新日期：2005-04-01 00:00:00

abstract：:Pigeons given a simultaneous spatial discrimination reversal, in which a single reversal occurs at the midpoint of each session, consistently show anticipation prior to the reversal as well as perseveration after the reversal, suggesting that they use a less effective cue (time or trial number into the session) than w...

journal_title：Animal cognition

authors： Laude JR,Pattison KF,Rayburn-Reeves RM,Michler DM,Zentall TR

更新日期：2016-01-01 00:00:00

abstract：:Instrumental learning guides behavior toward resources. When such resources are no longer available, approach to previously reinforced locations is reduced, a process called extinction. The present experiments are concerned with factors affecting the extinction of acquired behaviors in toads. In previous experiments, ...

journal_title：Animal cognition

authors： Puddington MM,Papini MR,Muzio RN

更新日期：2018-01-01 00:00:00

abstract：:Overmarking occurs when one individual places its scent mark directly on top of the scent mark of another individual. Although it is almost ubiquitous among terrestrial mammals, we know little about the function of overmarking. In addition, almost all studies on mammalian overmarking behaviour dealt with adult individ...

journal_title：Animal cognition

authors： Pluháček J,Tučková V,King SRB,Šárová R

更新日期：2019-03-01 00:00:00

abstract：:Urban animals and birds in particular are able to cope with diverse novel threats in a city environment such as avoiding novel, unfamiliar predators. Predator avoidance often includes alarm signals that can be used also by hetero-specifics, which is mainly the case in mixed-species flocks. It can also occur when speci...

journal_title：Animal cognition

authors： Bílá K,Beránková J,Veselý P,Bugnyar T,Schwab C

更新日期：2017-01-01 00:00:00

abstract：:An adult male orangutan (Pongo abelii) was presented with a series of delayed matching-to-sample (DMTS) tasks in which he was to match images based on (a) the number of individual animals depicted in the photograph (from 1 to 4), (b) the number of abstract shapes presented in the stimulus (from 1 to 4), or (c) the num...

journal_title：Animal cognition

authors： Vonk J

更新日期：2014-03-01 00:00:00

abstract：:Imitation can be defined as the copying of behavior. To a biologist, interest in imitation is focused on its adaptive value for the survival of the organism, but to a psychologist, the mechanisms responsible for imitation are the most interesting. For psychologists, the most important cases of imitation are those that...

journal_title：Animal cognition

authors： Zentall TR

更新日期：2006-10-01 00:00:00

abstract：:The emergence of novel behavior is a multilayered phenomenon that comprehends distinct processes. One such process is known as insightful problem solving. "Insight" can be explained as the spontaneous interconnection of previously acquired behavioral repertoires. The objective of this study was to investigate: (1) whe...

journal_title：Animal cognition

authors： Neves Filho HB,de Carvalho Neto MB,Taytelbaum GP,Malheiros RD,Knaus YC

更新日期：2016-11-01 00:00:00

abstract：:Learning about food palatability from watching what conspecifics eat might be one of the advantages of group living. A previous study investigated whether group members' presence or eating activity account for social facilitation of eating of foods never previously tasted. Capuchins encountered novel colored foods whe...

journal_title：Animal cognition

authors： Addessi E,Visalberghi E

更新日期：2001-11-01 00:00:00

abstract：:Numerosity illusions emerge when the stimuli in one set are overestimated or underestimated relative to the number (or quantity) of stimuli in another set. In the case of multi-item arrays, individual items that form a better Gestalt are more readily grouped, leading to overestimation by human adults and children. As ...

journal_title：Animal cognition

authors： Parrish AE,Beran MJ,Agrillo C

更新日期：2019-09-01 00:00:00

abstract：:When humans process visual stimuli, global information often takes precedence over local information. In contrast, some recent studies have pointed to a local precedence effect in both pigeons and nonhuman primates. In the experiment reported here, we compared the speed of acquisition of two different categorizations ...

journal_title：Animal cognition

authors： Goto K,Wills AJ,Lea SE

更新日期：2004-04-01 00:00:00

abstract：:While the effects of lead pollution have been well studied in vertebrates, it is unclear to what extent lead may negatively affect insect cognition. Lead pollution in soils can elevate lead in plant tissues, suggesting it could negatively affect neural development of insect herbivores. We used the cabbage white butter...

journal_title：Animal cognition

authors： Philips KH,Kobiela ME,Snell-Rood EC

更新日期：2017-01-01 00:00:00

abstract：:Now more than ever animal studies have the potential to test hypotheses regarding how cognition evolves. Comparative psychologists have developed new techniques to probe the cognitive mechanisms underlying animal behavior, and they have become increasingly skillful at adapting methodologies to test multiple species. M...

journal_title：Animal cognition

authors： MacLean EL,Matthews LJ,Hare BA,Nunn CL,Anderson RC,Aureli F,Brannon EM,Call J,Drea CM,Emery NJ,Haun DB,Herrmann E,Jacobs LF,Platt ML,Rosati AG,Sandel AA,Schroepfer KK,Seed AM,Tan J,van Schaik CP,Wobber V

更新日期：2012-03-01 00:00:00

abstract：:Following passive disorientation, Clark's nutcrackers (Nucifraga columbiana) learned to search for a hidden food reward located in one corner of a rectangular-shaped enclosure that contained either identical or distinct features in each corner. Identical features allowed for explicit learning of geometric cues, wherea...

journal_title：Animal cognition

authors： Reichert JF,Kelly DM

更新日期：2015-07-01 00:00:00

abstract：:Quantity discrimination is adaptive in a variety of ecological contexts and different taxa discriminate stimuli differing in numerousness, both in the wild and in laboratory settings. Quantity discrimination between object arrays has been suggested to be more demanding than between food arrays but, to our knowledge, t...

journal_title：Animal cognition

authors： Addessi E,Crescimbene L,Visalberghi E

更新日期：2008-04-01 00:00:00

abstract：:Social animals should have plenty of opportunities to learn from conspecifics, but most studies have failed to document social learning in horses. This study investigates whether young Icelandic horses can learn a spatial detour task through observation of a trained demonstrator horse of either the same age (Experimen...

journal_title：Animal cognition

authors： Rørvang MV,Ahrendt LP,Christensen JW

更新日期：2015-07-01 00:00:00

abstract：:Subjects in conditioning experiments time their conditioned responses relative to the onsets of the conditioned stimuli (CSs). These onsets are temporal landmarks, by reference to which subjects may estimate the location of the unconditioned stimulus (US) in time. In a serial compound conditioning paradigm, a long dur...

journal_title：Animal cognition

authors： Fairhurst S,Gallistel CR,Gibbon J

更新日期：2003-06-01 00:00:00