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Published on: August 29, 2018
Attentional capture in serial audiovisual search tasks
1Department of Psychology, Royal Holloway University of London, London, England. polly.dalton@rhul.ac.uk
Perception & Psychophysics
|August 4, 2007
Summary
Auditory stimuli can capture visual attention even in nonspatial search tasks. This cross-modal attentional capture influences performance, causing interference or facilitation depending on whether the singleton matches a target or distractor.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Auditory Perception
- Visual Attention
Background:
- Attentional capture, the involuntary redirection of attention by salient stimuli, is primarily studied in spatial visual search.
- Recent research shows auditory attention can be captured by unique auditory stimuli (singletons) in tone sequences.
- The cross-modal influence of auditory singletons on visual attention, particularly in nonspatial search, remains less understood.
Purpose of the Study:
- To investigate whether auditory singletons can capture attention during nonspatial visual search tasks.
- To examine the cross-modal effects of auditory singleton distractors on visual search performance using audiovisual stimuli.
Main Methods:
- Participants performed a sequential visual search task with centrally presented audiovisual stimuli.
- Targets were defined by a specific dimension (e.g., duration) within a particular modality.
- Performance was compared between conditions with and without a unique, irrelevant auditory singleton distractor.
Main Results:
- Irrelevant auditory singletons captured attention during the visual search task.
- This attentional capture resulted in performance interference when the singleton coincided with a visual distractor.
- Conversely, facilitation was observed when the auditory singleton coincided with a visual target.
Conclusions:
- Auditory singletons can effectively capture attention during nonspatial visual search tasks.
- These findings demonstrate significant cross-modal attentional capture from the auditory to the visual modality.
- The results highlight the integrated nature of attention across different sensory modalities.
