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Training enhances the ability of listeners to exploit visual information for auditory scene analysis
Huriye Atilgan1, Jennifer K Bizley1
1The Ear Institute, University College London, UK.
Cognition
|December 29, 2020
Summary
Training to detect audiovisual temporal coherence enhances multisensory integration. This allows individuals to better utilize visual cues in auditory selective attention tasks, improving performance when visual information aligns with target or masker sounds.
Area of Science:
- Cognitive Neuroscience
- Auditory Perception
- Multisensory Integration
Background:
- Temporal relationships between cross-modal cues are crucial for perception and behavior.
- Previous research showed temporally correlated visual and auditory stimuli impact auditory selective attention.
- Visual stimuli, even without task-relevant information, can influence auditory task performance based on temporal coherence.
Purpose of the Study:
- To investigate if training observers to detect audiovisual temporal coherence alters their ability to exploit visual information in an auditory selective attention task.
- To determine if specific types of audiovisual training differentially affect multisensory integration for attention.
Main Methods:
- Participants were trained to detect audiovisual temporal coherence.
- Trained participants then performed an auditory selective attention task with varying audiovisual temporal coherence.
- A control group was trained on a different audiovisual task, and another group was trained to discriminate modulation rate differences.
Main Results:
- Observers trained in detecting audiovisual temporal coherence showed improved performance in the auditory selective attention task when visual stimuli were temporally coherent with either the target or masker sound.
- Training to discriminate modulation rate differences improved overall performance but did not enhance the exploitation of visual coherence in the attention task.
- A control group showed no significant changes in performance or visual information exploitation.
Conclusions:
- Training focused on audiovisual temporal coherence can optimize multisensory integration, enhancing the ability to use visual cues for auditory attention.
- The specific nature of cross-modal training influences how individuals benefit from multisensory information.
- These findings provide insights into the plasticity of multisensory integration and its role in attention.
Keywords:
Audiovisual integrationAuditory scene analysisSelective attentionTemporal processingTrainingMore Related Videos
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