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Transitive inference formation in pigeons.
Pigeons were trained with 4 pairs of visual stimuli in a 5-term series―A+ B−, B+C, C+D→, and D+ E− (in which plus [+] denotes reward and minus [−] denotes nonreward)―before the unreinforced test pair… Expand
The nature of culture
- J. Delius
Niko Tinbergen laid great stress on the essential importance of cultural evolution for the understanding of human behaviour although he never, of course, made it a central subject of his research… Expand
Algebraic Learning and Neural Network Models for Transitive and Non-transitive Responding
Transitive inference is a kind of deductive reasoning. Given the premises “Anna is taller than Paul” and “Paul is taller than Mary”, adults and older children easily conclude that “Anna is taller… Expand
Concept learning by pigeons: Matching-to-sample with trial-unique video picture stimuli
Pigeons were trained to match-to-sample with several new methodologies: a large number of stimuli, computer-drawn color picture stimuli, responses monitored by a computer touch screen, stimuli… Expand
Rotational invariance in visual pattern recognition by pigeons and humans.
Pigeons and humans chose which one of two alternative visual forms was identical to, or a mirror image of, a previously presented sample form. The two comparison forms were presented in various… Expand
Preening and Associated Comfort Behavior in Birds a
- J. Delius
- Biology, Medicine
- Annals of the New York Academy of Sciences
- 1 May 1988
In most avian species the plumage also has an important extra function compared with the pelage of mammals: flight. Accordingly preening, as a behavior that conditions the bird's integument, can be… Expand
Head and eye movements in unrestrained pigeons (Columba livia)
Head and eye movements were simultaneously recorded during locomotory and pecking behavior of 4 pigeons (Columba livia), which were trained to traverse a conditioning chamber, with a pecking key and… Expand
Transitive responding in animals and humans: Exaptation rather than adaptation?
In order to survive and reproduce, individual animals need to navigate through a multidimensional utility landscape in a near-optimal way. There is little doubt that the behaviourally more advanced… Expand
Orientation invariant pattern recognition by pigeons (Columba livia) and humans (Homo sapiens).
The orientation invariance of visual pattern recognition in pigeons and humans was studied using a conditioned matching-to-sample procedure. A rotation effect, a lengthening of choice latencies with… Expand
Categorical discrimination of objects and pictures by pigeons
- J. Delius
- 1 September 1992
With a three-choice instrumental discrimination procedure, pigeons were taught to distinguish small spherical objects from nonspherical objects. Spherical objects were defined as positive,… Expand