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Updated: Apr 28, 2026

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Published on: September 7, 2018
Feature-based inattentional blindness: loss of awareness to featural information in fully attended objects
Marjan Persuh1, Mabel Gomez, Lisa Bauer
1Program in Cognitive Neuroscience, The Graduate Center, City University of New York, New York, NY, USA, mpersuh@gmail.com.
Abstract:
In two experiments, we investigated the impact of feature-based attention on observers' awareness of object appearance. Participants were shown a sequence of two displays, each containing eight objects (rectangles), and were asked to detect changes in the orientation of a cued rectangle. A set of baseline trials preceded probe trials in which half of the rectangles in each display were unexpectedly distorted by 70 %. Participants in both Experiment 1 (100-ms display duration) and Experiment 2 (100- and 400-ms display durations) were unaware of these modifications in the task-irrelevant feature (texture), even when they were asked to select the viewed object in a forced choice procedure. A control experiment showed that participants could identify the physical distortion when they were made aware of its presence. The results demonstrate that feature-based attention moderates the appearance of objects, even when those objects are fully expected and fully attended, implying a distinct form of unawareness that we term feature-based inattentional blindness.
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