#9502. Kea (Nestor notabilis) show flexibility and individuality in within-session reversal learning tasks

September 2026publication date
Proposal available till 11-05-2025
4 total number of authors per manuscript0 $

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Journal’s subject area:
Ecology, Evolution, Behavior and Systematics;
Experimental and Cognitive Psychology;
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Abstract:
The midsession reversal paradigm confronts an animal with a two-choice discrimination task where the reward contingencies are reversed at the midpoint of the session. Species react to the reversal with either win-stay/lose-shift, using local information of reinforcement, or reversal estimation, using global information, e.g. time, to estimate the point of reversal. Besides pigeons, only mammalian species were tested in this paradigm so far and analyses were conducted on pooled data, not considering possible individually different responses. We tested twelve kea parrots with a 40-trial midsession reversal test and additional shifted reversal tests with a variable point of reversal. Birds were tested in two groups on a touchscreen, with the discrimination task having either only visual or additional spatial information. We used Generalized Linear Mixed Models to control for individual differences when analysing the data.
Keywords:
GLMM; Midsession reversal; Parrot cognition; Reversal estimation; Touchscreen; Win-stay/lose-shift

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