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Cognitive asymmetry in rats in response to emergent vs. disappearing affordances
This study examines the effects of novel environmental changes on the behavior of rats in an experimental chamber. We hypothesized that newly...
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Are comparable studies really comparable? Suggestions from a problem-solving experiment on urban and rural great tits
Performance in tests of various cognitive abilities has often been compared, both within and between species. In intraspecific comparisons, habitat...
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Synchronous citizen science with dogs
Citizen science approaches have grown in popularity over the years, partly due to their ability to reach a wider audience and produce more...
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Comparing the productive vocabularies of grey parrots (Psittacus erithacus) and young children
Due to their outstanding ability of vocal imitation, parrots are often kept as pets. Research has shown that they do not just repeat human words....
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This or not that: select and reject control of relational responding in rats using a blank comparison procedure with odor stimuli
The blank comparison (BLC) task was developed to assess stimulus relations in discrimination learning; that is, are subjects learning to “select” the...
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Replay of incidentally encoded novel odors in the rat
Although events are not always known to be important when they occur, people can remember details about such incidentally encoded information using...
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Are lateralized and bold fish optimistic or pessimistic?
Cognitive bias is defined as the influence of emotions on cognitive processes. The concept of the cognitive judgement bias has its origins in human...
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Metacognition in Japanese macaques (Macaca fuscata): does impulsivity explain unnecessary looks in the tubes task?
Potential metacognitive abilities, such as monitoring and controlling cognitive processes, have been revealed in some primate species. In the tubes...
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Perception of optical illusions in ungulates: insights from goats, sheep, guanacos and llamas
Optical illusions have long been used in behavioural studies to investigate the perceptual mechanisms underlying vision in animals. So far, three...
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Nest excavators’ learning walks in the Australian desert ant Melophorus bagoti
The Australian red honey ant, Melophorus bagoti , stands out as the most thermophilic ant in Australia, engaging in all outdoor activities during the...
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In “Tone” with dogs: exploring canine musicality
This study investigates the musical perception skills of dogs through playback experiments. Dogs were trained to distinguish between two different...
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Changes in movement patterns in relation to sun conditions and spatial scales in wild western gorillas
For most primates living in tropical forests, food resources occur in patchworks of different habitats that vary seasonally in quality and quantity....
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Hooded crows (Corvus cornix) manufacture objects relative to a mental template
It was recently found that not only tool-specialized New Caledonian crows, but also Goffin cockatoos can manufacture physical objects in accordance...
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Proto-tool use for food processing in wild Arabian babblers: matching processing methods, substrates and prey types
Cognition is a powerful adaptation, enabling animals to utilise resources that are unavailable without manipulation. Tool use and food processing are...
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Perception of vocoded speech in domestic dogs
Humans have an impressive ability to comprehend signal-degraded speech; however, the extent to which comprehension of degraded speech relies on...
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Figure-ground segmentation based on motion in the archerfish
Figure-ground segmentation is a fundamental process in visual perception that involves separating visual stimuli into distinct meaningful objects and...
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How to solve novel problems: the role of associative learning in problem-solving performance in wild great tits Parus major
Although problem-solving tasks are frequently used to assess innovative ability, the extent to which problem-solving performance reflects variation...
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Social demonstration of colour preference improves the learning of associated demonstrated actions
We studied how different types of social demonstration improve house sparrows' ( Passer domesticus ) success in solving a foraging task that requires...
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No evidence tube entrapment distresses rodents in typical empathy tests
In the first two experiments an empty tube open at one end was placed in different locations. Male hamsters, tested one at a time, tended to stay...
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A preliminary analysis of the effect of individual differences on cognitive performance in young companion dogs
Many factors influence cognitive performance in dogs, including breed, temperament, rearing history, and training. Studies in working dog populations...
