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Object Substitution Masking

When two objects appear simultaneously in nearby spatial locations, one only briefly and the other persisting for a longer period, the object that persists may replace the briefer stimulus in the consciousness of the observer (Di Lollo, Enns, & Rensink, 2000). Many experiments have identified variables that moderate this object substitution masking effect (e.g., Kahan & Mathis, 2002) and results are broadly consistent with a theory of masking by object substitution in which reentrant processing of the visual system, results in the updating of a single object representation (see Di Lollo et al., 2000). However, feedforward theories (Francis & Hermens, 2002; Neill et al., 2002) and two-object interference theories (Kahan & Lichtman, 2006) have also been proffered to explain these data. See this URL for more information about object substitution masking.

Some Related Publications

Kahan, T. A., & Enns, J. T. (2014). Long-Term Memory Representations Influence Perception Before Edges are Assigned to Objects. Journal of Experimental Psychology: General143, 566-574.

Kahan, T. A., & Enns, J. T. (2010). Object trimming: When masking dots alter rather than replace target representations. Journal of Experimental Psychology: Human Perception and Performance, 36, 88-102.

Kahan, T. A., & Lichtman, A. S. (2006). Looking at object substitution masking in depth and motion: Towards a two-object theory of object substitution. Perception & Psychophysics, 68, 437-446.

Kahan, T. A., & Mathis, K. M. (2002). Gestalt grouping and common onset masking. Perception & Psychophysics, 64, 1248-1259.