Independent Sampling of Features Enables Conscious Perception of Bound Objects

Edward Vul*, Anina N. Rich

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    30 Citations (Scopus)

    Abstract

    Decades of research suggest that selective attention is critical for binding the features of objects together for conscious perception. A fundamental question, however, remains unresolved: How do people perceive objects, albeit with binding errors (illusory conjunctions), when attentional resolution is poor? We used a novel technique to investigate how features are selected to create percepts of bound objects. We measured the correlation of errors (intrusions) in color and identity reports in spatial and temporal selection tasks under conditions of varying spatial or temporal uncertainty. Our findings suggest that attention selects each feature independently by randomly sampling from a probability distribution over space or time. Thus, veridical perception of bound object features arises only when attentional selection is sufficiently precise that the independently sampled features originate from a single object.

    Original languageEnglish
    Pages (from-to)1168-1175
    Number of pages8
    JournalPsychological Science
    Volume21
    Issue number8
    DOIs
    Publication statusPublished - Aug 2010

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