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Feature-based attention enables robust, long-lasting location transfer in human perceptual learning
Shao-Chin Hung1, Marisa Carrasco2,3
1Department of Psychology, New York University, New York, NY, USA.
Scientific Reports
|July 7, 2021
Summary
Feature-based attention (FBA) training enhances visual perceptual learning (VPL) and promotes transfer to new locations. These benefits, including improved orientation discrimination, are robust and last for over a year.
Area of Science:
- Cognitive Neuroscience
- Visual Perception
- Learning Sciences
Background:
- Visual perceptual learning (VPL) typically exhibits specificity to trained locations and features.
- Spatial attention manipulation can facilitate VPL transfer, but the role of feature-based attention (FBA) remains less understood.
Purpose of the Study:
- To investigate if feature-based attention (FBA) training facilitates visual perceptual learning (VPL) transfer across locations.
- To determine the long-term persistence of FBA-induced VPL benefits and transfer.
Main Methods:
- A novel orientation discrimination task was developed, presenting two reference angles simultaneously.
- Observers were trained using feature-based attention (FBA) protocols.
- Perceptual performance and transfer effects were assessed over time, including a 1-year follow-up.
Main Results:
- Training with FBA resulted in significant location transfer of VPL, unlike typical feature specificity.
- Orientation specificity was maintained despite location transfer.
- Both the perceptual improvements and location transfer effects persisted for over 1 year.
Conclusions:
- Feature-based attention (FBA) training induces robust and long-lasting visual perceptual learning (VPL) with remarkable location transfer.
- FBA training offers a promising strategy for enhancing the generalization of VPL, with implications for visual rehabilitation.
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