Attentional shifts in categorization learning: Perseveration but not learned irrelevance

Area of Science:

• Comparative Cognition
• Animal Behavior
• Learning and Memory

Background:

• Shift costs in categorization tasks arise from changes in feature relevance.
• These costs may stem from attentional perseveration or learned irrelevance.
• Understanding these mechanisms is crucial for explaining cognitive flexibility.

Purpose of the Study:

• To investigate the underlying mechanisms of shift costs in pigeons.
• To differentiate between attentional perseveration and learned irrelevance in a categorization task.
• To examine the relationship between attention allocation and performance changes.

Main Methods:

• Four groups of pigeons performed a categorization task with changing feature relevance.
• Choice accuracy and peck locations (indicating attention) were monitored.
• Experimental manipulations isolated effects of learned irrelevance and attentional perseveration.

Main Results:

• Evidence supported attentional perseverance, where attention remained on previously relevant features.
• No evidence for learned irrelevance was found in accuracy or attention patterns.
• Pigeons' attention allocation to relevant features lagged behind accuracy improvements.

Conclusions:

• Pigeons exhibit attentional perseverance but not learned irrelevance following feature role reversals.
• Attention appears to be learned and directed towards reliable predictive cues.
• Findings align with theories emphasizing attention as a learned process driven by predictive accuracy.