ArticleBiology letters2021
Goffin's cockatoos discriminate objects based on weight alone.
Article in Biology letters, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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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
7 citing papers in PubMed.
- Seizing opportunities: Object neophobia as a factor mediating technical innovation in Goffin´s cockatoos?PloS one · 2025Article
- Testing weight-based conditional discrimination in Goffin's cockatoos, Cacatua goffiniana.PloS one · 2025Article
- Mechanical Problem Solving in Goffin's Cockatoos-Towards Modeling Complex Behavior.Adaptive behavior · 2024Article
- Goffin's cockatoos use object mass but not balance cues when making object transport decisions.Scientific reports · 2024Article
- Recent developments in parrot cognition: a quadrennial update.Animal cognition · 2023Review
- Innovative composite tool use by Goffin's cockatoos (Cacatua goffiniana).Scientific reports · 2022Article
- Goffin's cockatoos discriminate objects based on weight alone.Biology letters · 2021Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
Paying attention to weight is important when deciding upon an object's efficacy or value in various contexts (e.g. tool use, foraging). Proprioceptive discrimination learning, with objects that differ only in weight, has so far been investigated almost exclusively in primate species. Here, we show that while Goffin's cockatoos learn faster when additional colour cues are used, they can also quickly learn to discriminate between objects on the basis of their weight alone. Ultimately, the birds learned to discriminate between visually identical objects on the basis of weight much faster than primates, although methodological differences between tasks should be considered.
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