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Visual Distraction Disrupts Category-tuned Attentional Filters in Ventral Visual Cortex
Blaire Dube1, Lasyapriya Pidaparthi1, Julie D Golomb1
1The Ohio State University.
Journal of Cognitive Neuroscience
|May 17, 2022
Summary
Distraction disrupts more than just spatial attention; it impairs category-specific attentional filters, leading to processing of irrelevant information. This filter disruption can even reverse attentional control settings.
Area of Science:
- Cognitive Neuroscience
- Visual Perception
- Attention Studies
Background:
- Behavioral goals guide information processing through attentional filters.
- Salient environmental stimuli capture spatial attention, but effects on nonspatial filters are less understood.
Purpose of the Study:
- To investigate the impact of visual distraction on nonspatial attentional filters.
- To test the filter disruption theory regarding attentional capture.
Main Methods:
- Functional magnetic resonance imaging (fMRI) was used to record brain activity.
- Participants viewed hybrid face/house images under conditions with and without salient distractors.
Main Results:
- Distractors disrupted category-tuned attentional filtering, increasing activation for ignored categories.
- Brain activity showed disruption in the fusiform face area and parahippocampal place area.
- Errant processing and prioritization of goal-inconsistent information occurred.
Conclusions:
- Distraction broadly disrupts attentional filters, affecting category-specific processing.
- Profound filter disruption can lead to a reversal of attentional control settings.
- Findings have implications for understanding perception and attention theory.
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