1,647 results match your criteria Animal Cognition[Journal]

Learning about construction behaviour from observing an artefact: can experience with conspecifics aid in artefact recognition?

Anim Cogn 2021 May 6. Epub 2021 May 6.

Department of Psychology, University of Alberta, Edmonton, AB, T6G 2R3, Canada.

Observation of or interaction with the enduring products of behaviour, called 'social artefacts' (e.g. an abandoned nest) is a potential source of social information. Read More

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Dissociating the effects of delay and interference on dog (Canis familiaris) working memory.

Anim Cogn 2021 May 5. Epub 2021 May 5.

Department of Psychological Sciences, Auburn University, Auburn, AL, USA.

Delayed matching-to-sample (dMTS) is commonly used to study working memory (WM) processes in non-humans. Previous procedures for studying dog WM, including versions of the dMTS, did not separate the impact of delay and interference on memory performance. These studies were also limited to auditory and spatial stimuli, neglecting dogs' dominant sensory modality (i. Read More

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Increased speed of movement reduced identification of Batesian ant-mimicking spiders by surrogate predators.

Stano Pekár

Anim Cogn 2021 May 3. Epub 2021 May 3.

Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, 611 37, Brno, Czech Republic.

In Batesian mimicry, the mimic gains protection from predators by imitating a noxious model. Some myrmecomorphic species use ants as models as ants have strong defensive capabilities. Ants are highly mobile models, and besides colour, shape, and size, mimics also imitate their movement. Read More

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Irrational risk aversion in an ant.

Anim Cogn 2021 May 3. Epub 2021 May 3.

Animal Comparative Economics Laboratory, Department of Zoology and Evolutionary Biology, University of Regensburg, Regensburg, Germany.

Animals must often decide between exploiting safe options or risky options with a chance for large gains. Both proximate theories based on perceptual mechanisms, and evolutionary ones based on fitness benefits, have been proposed to explain decisions under risk. Eusocial insects represent a special case of risk sensitivity, as they must often make collective decisions based on resource evaluations from many individuals. Read More

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Nesting ecology does not explain slow-fast cognitive differences among honeybee species.

Anim Cogn 2021 Apr 27. Epub 2021 Apr 27.

Department of Biology, Colorado State University, 1878 Campus Delivery, Fort Collins, CO, 80523, USA.

Slow-fast behavioral and life history differences have been tied to slow-fast variation in cognition that is part of the general speed-accuracy tradeoff. While there is growing evidence for such cognitive variation and its association with behavior and life history at the intraspecific level, it is unknown if a similar relationship extends to the interspecific level. Since interspecific differences in cognition have been shown to be a function of ecology and life history, such differences should be reflected in multiple traits that comprise the slow-fast cognitive axis. Read More

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Neural substrates involved in the cognitive information processing in teleost fish.

Anim Cogn 2021 Apr 27. Epub 2021 Apr 27.

Institute of Zoology, Rheinische Friedrich-Wilhelms-Universität Bonn, Poppelsdorfer Schloss, Meckenheimer Allee 169, 53115, Bonn, Germany.

Over the last few decades, it has been shown that fish, comprising the largest group of vertebrates and in many respects one of the least well studied, possess many cognitive abilities comparable to those of birds and mammals. Despite a plethora of behavioural studies assessing cognition abilities and an abundance of neuroanatomical studies, only few studies have aimed to or in fact identified the neural substrates involved in the processing of cognitive information. In this review, an overview of the currently available studies addressing the joint research topics of cognitive behaviour and neuroscience in teleosts (and elasmobranchs wherever possible) is provided, primarily focusing on two fundamentally different but complementary approaches, i. Read More

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Navigation and orientation in Coleoptera: a review of strategies and mechanisms.

Anim Cogn 2021 Apr 12. Epub 2021 Apr 12.

School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand.

Spatial orientation is important for animals to forage, mate, migrate, and escape certain threats, and can require simple to complex cognitive abilities and behaviours. As these behaviours are more difficult to experimentally test in vertebrates, considerable research has focussed on investigating spatial orientation in insects. However, the majority of insect spatial orientation research tends to focus on a few taxa of interest, especially social insects. Read More

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Cognitive enrichment device provides evidence for intersexual differences in collaborative actions in Indo-Pacific bottlenose dolphins (Tursiops aduncus).

Anim Cogn 2021 Apr 12. Epub 2021 Apr 12.

Department of Ethology, Eötvös Loránd University, Pázmány Péter sétány 1/c, Budapest, 1117, Hungary.

Social living, long lifespan and advanced cognitive skills provided favourable conditions for the development of pro-social behaviours and cooperative activities in cetacean. Dolphins have been observed to collaborate for various purposes, finding food, finding mates or raising and teaching younger individuals. This study investigated the potential impact of demographic factors (sex and age), social factors (relatedness and group size), and individual experience in a cooperative problem solving task. Read More

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Male mice and cows perceive human emotional chemosignals: a preliminary study.

Anim Cogn 2021 Apr 11. Epub 2021 Apr 11.

Centre des Sciences du Goût et de L'Alimentation, UMR6265 CNRS, Université de Bourgogne Franche-Comté, INRAE, Agrosup Dijon, Dijon, France.

Olfactory cues of individuals of the same species or from different species may induce changes in behaviors and physiological reactions in mammals. However, there are few studies on the influence of human odor on animal behavior and welfare, especially those of rodents and farm animals. The present study aimed to investigate whether the odor of a stressed human (in sweat) would modify the behavior of mice and cows. Read More

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Effects of oxytocin administration and the dog-owner bond on dogs' rescue behavior.

Anim Cogn 2021 Apr 8. Epub 2021 Apr 8.

Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires, Instituto de Investigaciones Médicas (IDIM), Grupo de Investigación del Comportamiento en Cánidos (ICOC), Buenos Aires, Argentina.

Rescue behavior is a kind of prosocial response that involves the provision of help to a stressed individual. This behavior has been observed in domestic dogs assisting their owners when they pretended to be trapped. Given the role of the hormone oxytocin as a facilitator for prosocial behavior, we aimed to evaluate the effects of its intranasal administration on the rescue behavior of dogs directed to their owners. Read More

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Performance of Asian elephants (Elephas maximus) on a quantity discrimination task is similar to that of African savanna elephants (Loxodonta africana).

Anim Cogn 2021 Apr 3. Epub 2021 Apr 3.

Agnes Scott College, 141 E. College Avenue, Decatur, GA, 30030, USA.

Using an object-choice task, we measured the relative quantity discrimination ability of Asian elephants. Two zoo-housed elephants were given auditory cues of food being dropped into two containers (Nonvisible condition), and in one condition they could also see the food on top of the containers (Visible condition). Elephants received sets of varying ratios and magnitudes. Read More

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Feline communication strategies when presented with an unsolvable task: the attentional state of the person matters.

Anim Cogn 2021 Apr 2. Epub 2021 Apr 2.

Nestlé Purina Research, Saint-Louis, MO, USA.

Research on social cognitive ability in domestic cats is limited. The current study investigated social referencing in cats when exposed to first, a solvable, and then, an unsolvable scenario (i.e. Read More

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Social context shapes cognitive abilities: associative memories are modulated by fight outcome and social isolation in the crab Neohelice granulata.

Anim Cogn 2021 Mar 31. Epub 2021 Mar 31.

Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE)-CONICET, CONICET, 1428, Buenos Aires, Argentina.

Cognitive abilities of an animal can be influenced by distinct social experiences. However, the extent of this modulation has not been addressed in different learning scenarios: are all tasks similarly affected by social experiences? In the present study, we analyzed the effect of social dominance in aversive and appetitive memory processes in the crab Neohelice granulata. In addition, we studied the influence of social isolation on memory ability. Read More

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Face-to-face configuration in Japanese macaques functions as a platform to establish mutual engagement in social play.

Anim Cogn 2021 Mar 29. Epub 2021 Mar 29.

Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, Meguro, Tokyo, Japan.

A face-to-face configuration and eye-to-eye contact are considered a basis for intersubjectivity, as they create a situation in which interactants are mutually attentive. Studies in humans have shown that the face-to-face configuration establishes active engagement by interactants in subsequent interactions, but it is not clear whether a similar function exists in non-human animals. Using data from a group of Japanese macaques (Macaca fuscata), this study compared dyadic play fighting sessions preceded and not preceded by a face-to-face configuration. Read More

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2D or not 2D? An fMRI study of how dogs visually process objects.

Anim Cogn 2021 Mar 27. Epub 2021 Mar 27.

Psychology Department, Emory University, Atlanta, GA, 30322, USA.

Given humans' habitual use of screens, they rarely consider potential differences when viewing two-dimensional (2D) stimuli and real-world versions of dimensional stimuli. Dogs also have access to many forms of screens and touchpads, with owners even subscribing to dog-directed content. Humans understand that 2D stimuli are representations of real-world objects, but do dogs? In canine cognition studies, 2D stimuli are almost always used to study what is normally 3D, like faces, and may assume that both 2D and 3D stimuli are represented in the brain the same way. Read More

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Cryptic eggs are rejected less frequently by a cuckoo host.

Anim Cogn 2021 Mar 24. Epub 2021 Mar 24.

Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, 571158, China.

Obligate brood parasitism is associated with huge reproduction costs, forcing hosts to evolve various anti-parasitic strategies against brood parasites, among which egg recognition and rejection is the most effective defense strategy. According to the crypsis hypothesis, non-mimetic yet cryptic eggs in a nest can also deceive their hosts and eventually be accepted. To validate this hypothesis, we conducted field experiments on Oriental reed warblers (Acrocephalus orientalis), a common host for common cuckoos (Cuculus canorus). Read More

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A review of the unsolvable task in dog communication and cognition: comparing different methodologies.

Anim Cogn 2021 Mar 23. Epub 2021 Mar 23.

Department of Experimental Psychology, University of São Paulo, São Paulo, São Paulo, Brazil.

Communication between dogs and humans is a topic of growing interest, and the "unsolvable task" is a common method used to measure human-directed communication. In this task, dogs learn how to solve a problem to obtain a reward. After a fixed number of trials, the reward becomes impossible to access, arguably leading to communicative attempts from the dog. Read More

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Production of regular rhythm induced by external stimuli in rats.

Anim Cogn 2021 Mar 22. Epub 2021 Mar 22.

Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan.

Rhythmic ability is important for locomotion, communication, and coordination between group members during the daily life of animals. We aimed to examine the rhythm perception and production abilities in rats within the range of a subsecond to a few seconds. We trained rats to respond to audio-visual stimuli presented in regular, isochronous rhythms at six time-intervals (0. Read More

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Using a new video rating tool to crowd-source analysis of behavioural reaction to stimuli.

Anim Cogn 2021 Mar 9. Epub 2021 Mar 9.

Mammal Vocal Communication and Cognition Research Group, School of Psychology, University of Sussex, Brighton, BN1 9RH, UK.

Quantifying the intensity of animals' reaction to stimuli is notoriously difficult as classic unidimensional measures of responses such as latency or duration of looking can fail to capture the overall strength of behavioural responses. More holistic rating can be useful but have the inherent risks of subjective bias and lack of repeatability. Here, we explored whether crowdsourcing could be used to efficiently and reliably overcome these potential flaws. Read More

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A kestrel without hooked beak and talons is not a kestrel for the red-backed shrike (Lanius collurio).

Anim Cogn 2021 Mar 19. Epub 2021 Mar 19.

Faculty of Science, University of South Bohemia in České Budějovice, Branišovská 1760, 37005, České Budějovice, Czech Republic.

Birds are strongly motivated to recognize various predators to secure survival and reproductive success. Thus, predator recognition provides a useful tool for the investigation of the process of discrimination and categorization in non-trained animals. The most important role in this process is usually attributed to the prominent unique features shared by all members within the wider category of predators (sharp teeth or beaks, claws, talons and conspicuous eyes). Read More

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I know a dog when I see one: dogs (Canis familiaris) recognize dogs from videos.

Anim Cogn 2021 Mar 19. Epub 2021 Mar 19.

Laboratory of Applied Ethology, Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell'Università 16, 35020, Legnaro, Italy.

Several aspects of dogs' visual and social cognition have been explored using bi-dimensional representations of other dogs. It remains unclear, however, if dogs do recognize as dogs the stimuli depicted in such representations, especially with regard to videos. To test this, 32 pet dogs took part in a cross-modal violation of expectancy experiment, during which dogs were shown videos of either a dog and that of an unfamiliar animal, paired with either the sound of a dog barking or of an unfamiliar vocalization. Read More

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Horses are sensitive to baby talk: pet-directed speech facilitates communication with humans in a pointing task and during grooming.

Anim Cogn 2021 Mar 18. Epub 2021 Mar 18.

PRC, INRAE, CNRS, IFCE, University Tours, 37380, Nouzilly, France.

Pet-directed speech (PDS) is a type of speech humans spontaneously use with their companion animals. It is very similar to speech commonly used when talking to babies. A survey on social media showed that 92. Read More

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Prosociality and reciprocity in bottlenose dolphins (Tursiops truncatus).

Anim Cogn 2021 Mar 17. Epub 2021 Mar 17.

Laboratoire Ethologie Cognition Développement, Université Paris Nanterre, Nanterre, France.

Some moral behaviours, often regarded as reflecting high cognitive abilities (such as empathy, cooperation, targeted helping) are known to only be present in very few species, like great apes, elephants and cetaceans. Prosocial behaviours (producing a benefit for the recipient without necessarily involving a cost for the actor) have been mostly found in primates and, more recently, in elephants. Despite dolphins' reputation for helping their conspecifics, experimental studies about their prosocial and empathic abilities are rare. Read More

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Watching others in a positive state does not induce optimism bias in common marmosets (Callithrix jacchus), but leads to behaviour indicative of competition.

Anim Cogn 2021 Mar 16. Epub 2021 Mar 16.

Department of Behavioral and Cognitive Biology, Faculty of Life Sciences, University of Vienna, Vienna, Austria.

Emotional contagion is suggested to facilitate group life by enhancing synchronized responses to the environment. Cooperative breeders are an example of a social system that requires such intricate coordination between individuals. Therefore, we studied emotional contagion in common marmosets by means of a judgement bias test. Read More

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Two-dimensional reward evaluation in mice.

Anim Cogn 2021 Mar 15. Epub 2021 Mar 15.

Institute of Biology, Humboldt University, Philippstr. 13, 10099, Berlin, Germany.

When choosing among multi-attribute options, integrating the full information may be computationally costly and time-consuming. So-called non-compensatory decision rules only rely on partial information, for example when a difference on a single attribute overrides all others. Such rules may be ecologically more advantageous, despite being economically suboptimal. Read More

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Equal performance but distinct behaviors: sex differences in a novel object recognition task and spatial maze in a highly social cichlid fish.

Anim Cogn 2021 Mar 15. Epub 2021 Mar 15.

Department of Integrative Biology, University of Texas, 1 University Station C0990, Austin, TX, 78712, USA.

Sex differences in behavior and cognition can be driven by differential selection pressures from the environment and in the underlying neuromolecular mechanisms of decision-making. The highly social cichlid fish Astatotilapia burtoni exhibits dynamic and complex social hierarchies, yet explicit cognitive testing (outside of social contexts) and investigations of sex differences in cognition have yet to be fully explored. Here we assessed male and female A. Read More

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If horses had toes: demonstrating mirror self recognition at group level in Equus caballus.

Anim Cogn 2021 Mar 13. Epub 2021 Mar 13.

Unit of Ethology, Department of Biology, University of Pisa, Via Alessandro Volta 4bis, 56126, Pisa, Italy.

Mirror self-recognition (MSR), investigated in primates and recently in non-primate species, is considered a measure of self-awareness. Nowadays, the only reliable test for investigating MSR potential skills consists in the untrained response to a visual body mark detected using a reflective surface. Here, we report the first evidence of MSR at group level in horses, by facing the weaknesses of methodology present in a previous pilot study. Read More

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Lean on me: animal-human interactions.

Anim Cogn 2021 03;24(2):217

Auburn University, Auburn, USA.

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The performance of domestic dogs (Canis lupus familiaris) on two versions of the object choice task.

Anim Cogn 2021 Mar 9. Epub 2021 Mar 9.

School of Psychology, University of Sussex, Falmer, BN1 9QH, East Sussex, UK.

Object choice task (OCT) studies are widely used to assess the phylogenetic and ontogenetic distribution of the understanding of communicative cues, with this understanding serving as a proxy for the discernment of communicative intentions. Recent reviews have found systematic procedural and methodological differences in studies which compare performances across species on the OCT. One such difference concerns the spatial configuration of the test set-up, specifically the distances between the two containers (inter-object distance) and the subject-experimenter distance. Read More

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The effect of urbanization on innovation in spotted hyenas.

Anim Cogn 2021 Mar 9. Epub 2021 Mar 9.

Department of Integrative Biology, Michigan State University, 288 Farm Lane, Rm 203, Natural Sciences Bldg, East Lansing, MI, 48823, USA.

Urbanization represents a dramatic form of evolutionary novelty in the landscapes inhabited by many extant animals. The Cognitive Buffer Hypothesis suggests that innovation, the process by which animals solve novel problems or use novel behaviors, may be key for many animals when adapting to novel environments. If innovation is especially beneficial in urban environments, then we would expect urban animals to be more innovative than their non-urban counterparts. Read More

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