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Dissociating spatial attention and awareness in emotion-induced blindness
1Department of Psychology, University of Delaware, 108 WolfHall, Newark, DE 19716-2577, USA. most@psych.udel.edu
Psychological Science
|January 29, 2011
Summary
Emotional stimuli draw spatial attention but can impair awareness, causing emotion-induced blindness. This study reveals that emotional distractors inhibit target identification, especially when targets share spatiotemporal properties with the distractor.
Area of Science:
- Cognitive psychology
- Neuroscience
- Visual perception
Background:
- Emotional stimuli capture attention, influencing perception.
- Emotion-induced blindness (EIB) can disrupt awareness of targets.
- Previous research shows conflicting effects of emotional stimuli on perception.
Purpose of the Study:
- To investigate the spatial distribution of EIB.
- To dissociate spatial attention from awareness.
- To understand how emotional distractors affect target identification.
Main Methods:
- Participants performed a visual search task with rapid picture streams.
- Emotional distractors were presented in one stream.
- Target perception was assessed under different post-target display conditions.
Main Results:
- EIB was localized to the distractor's location when targets were followed by stream items.
- When targets persisted in iconic memory, emotional disruption was stronger away from the distractor.
- Emotional distractors inhibited identification of competing items at shared spatiotemporal positions.
Conclusions:
- Emotional distractors attract spatial attention but can inhibit competing item identification.
- The spatial and temporal dynamics of visual displays modulate EIB.
- Awareness and attention are differentially affected by emotional stimuli based on display conditions.
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