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    Area of Science:

    • Cognitive Psychology
    • Neuroscience
    • Visual Perception

    Background:

    • The human visual system organizes perception by grouping elements based on input regularities.
    • Stimuli with physical regularities, such as illusory contours, gain privileged access to visual awareness.

    Purpose of the Study:

    • To investigate whether real-world spatial regularities of complex objects influence visual awareness.
    • To determine if knowledge of object configurations impacts conscious perception.

    Main Methods:

    • Utilized continuous flash suppression (CFS) to measure visual awareness.
    • Presented pairs of meaningful objects in both regular (real-world) and irregular spatial configurations.
    • Tested upright and inverted stimuli to control for physical confounds and simple element grouping.

    Main Results:

    • Object pairs in regular, real-world configurations (e.g., lamp above table) reached awareness faster than irregular pairs.
    • This awareness advantage was specific to upright stimuli.
    • Stimulus inversion abolished the advantage, ruling out physical confounds.

    Conclusions:

    • Knowledge of object spatial configurations significantly modulates conscious visual perception.
    • The visual system leverages learned environmental regularities to shape awareness.
    • Perception is not solely based on low-level features but also on high-level semantic and spatial knowledge.