ArticleJournal of experimental psychology. Animal learning and cognition2021
Two-item conditional same-different categorization in pigeons: Finding differences.
Article in Journal of experimental psychology. Animal learning and cognition, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
5 citing papers in PubMed.
- Evolutionary Trajectories of Consciousness: From Biological Foundations to Technological Horizons.Brain sciences · 2025Review
- Stimulus-dependent emergence of understanding the 'same-different' concept in budgerigars.Proceedings. Biological sciences · 2024Article
- Visuo-spatial compound stimuli discrimination with (Gryllus pennsylvanicus) in two-choices rewarding learning tasks.Animal cognition · 2024Article
- The Perception of Similarity, Difference and Opposition.Journal of Intelligence · 2023Article
- It's not all the same to pigeons: Representations of difference may be shared across species.Psychonomic bulletin & review · 2022Article
Corrections and comments
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Authors and funding
3 authors.
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Abstract
Research on same-different categorization has shown that mastery of tasks of this kind can be strongly affected by the number of items in the training arrays-for both humans and nonhuman animals. Evidence for two-item same-different categorization in pigeons is decidedly mixed: although some investigations have succeeded, others have failed. To date, no research has documented successful conditional same-different categorization using just two items, nor has research explored how pigeons' responses in this paradigm might be influenced by perceptual characteristics of the training stimuli. Through a series of methodological modifications, we provide the first successful documentation that pigeons can perform two-item conditional same-different categorization to a high degree of accuracy; further, they can do so without the support of item repetition. We also show for the first time that the perceptual disparity between the items in pairs of different stimuli plays a key part in pigeons' same-different categorization performance. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.