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A Method for Investigating Change Blindness in Pigeons (Columba Livia)

A Method for Investigating Change Blindness in Pigeons (Columba Livia)

Published on: September 7, 2018

Numerical reproduction in pigeons.

Lavinia Tan¹, Randolph C Grace, Shasta Holland

¹Department of Psychology, University of Canterbury, New Zealand.

Journal of Experimental Psychology. Animal Behavior Processes

|October 11, 2007

Summary

Pigeons can learn to match their response count to visual cues, demonstrating a basic numerical ability. This study reveals how pigeons perceive and reproduce quantities, contributing to our understanding of animal cognition.

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Area of Science:

Animal behavior
Cognitive psychology
Comparative cognition

Background:

Pigeons (Columba livia) have demonstrated impressive cognitive abilities, including numerical discrimination.
Understanding the mechanisms of numerical cognition in non-human animals provides insights into the evolution of number sense.

Purpose of the Study:

To investigate pigeons' ability to match the number of operant responses to the number of visual stimuli presented.
To explore the role of temporal cues versus numerical cues in this matching behavior.

Main Methods:

Pigeons were trained in a delayed matching-to-sample task where the sample stimulus was a series of keylight flashes (2, 4, or 6).
The production phase required pigeons to emit a specific number of responses corresponding to the sample flash count.
Experiments manipulated the temporal properties of the flashes (constant rate vs. constant duration) and used pseudorandom presentation to assess cue control.

Main Results:

Pigeons' responding increased linearly with the number of flashes, although accuracy was moderate.
Response variability decreased as the number of flashes increased.
Positive transfer to novel numbers occurred when temporal cues were consistent, but numerical control was evident independently of temporal cues.
Results were consistent even when temporal cues were degraded.

Conclusions:

Pigeons exhibit a capacity for numerical discrimination and response-number matching.
Both numerical and temporal information influence pigeon responding, with numerical control being robust.
A response class model suggests that pigeons form higher-order response units associated with numerical categories.