Learned prioritization yields attentional biases through selection history.

Area of Science:

• Cognitive Psychology
• Neuroscience
• Visual Perception

Background:

• Selection history influences attentional allocation.
• The specific behavioral factors driving attentional bias are not fully understood.
• Learned prioritization is proposed as a key mechanism underlying selection history's effects.

Purpose of the Study:

• To investigate learned prioritization as a mechanism for attentional bias.
• To examine how learned stimulus priorities affect selective attention.
• To differentiate learned prioritization from reward-based attention mechanisms.

Main Methods:

• Two experiments involved training participants on differential stimulus priorities using a visual search task.
• Experiment 1: Equal overall stimulus priorities after training.
• Experiment 2: Unequal overall stimulus priorities after training.
• A subsequent visual search task tested for attentional bias.

Main Results:

• Attentional selection was only affected when stimuli had unequal learned priorities (Experiment 2).
• Increased reaction times occurred when distractors appeared in previously high-priority colors compared to low-priority colors.
• These findings suggest selection history does not affect all previously selected stimuli equally.

Conclusions:

• Adopting an attentional set with prioritized stimuli leads to a persistent attentional bias.
• Learned prioritization may explain attentional capture observed in value-driven attention studies, rather than reward alone.
• This research clarifies the role of learned prioritization in shaping selective attention.