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Probabilistic cuing of visual search: Neither implicit nor inflexible
Tamara Giménez-Fernández1, David Luque1, David R Shanks2
1Department of Basic Psychology.
Summary
Participants in visual search tasks are aware of target locations and can adapt their search strategies. This challenges previous notions of probabilistic cuing being an implicit and inflexible habit.
Area of Science:
- Cognitive Psychology
- Visual Perception
- Human Behavior
Background:
- Probabilistic cuing in visual search creates a bias towards frequently cued areas.
- This bias was previously thought to be inflexible and implicit.
Purpose of the Study:
- To investigate the flexibility and awareness of search biases in probabilistic cuing tasks.
- To challenge the prevailing view of these biases as implicit and inflexible.
Main Methods:
- Two high-powered experiments were conducted with a probabilistic cuing task.
- Participants performed a biased stage followed by an unbiased stage.
- Awareness was assessed at different points to gauge understanding of target distribution.
Main Results:
- Participants demonstrated awareness of the frequently cued 'rich' area.
- Search bias towards the rich area decreased when target distribution became unbiased.
- Awareness was higher when assessed immediately after the biased stage.
Conclusions:
- Probabilistic cuing biases are not necessarily implicit or inflexible.
- Participants can become aware of and adapt to changing target distributions.
- This challenges established models of visual search habits.
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