Object- and location-based IOR: Implications for attention and memory.
Several Inhibition of Return studies are reviewed that show inhibition is applied to both location- and object-based representations, resulting in different behavioral effects that are mediated by distinct neural systems. Importantly, new experiments indicate that inhibition of objects mediates behavior over time. Specifically, IOR exists over six previously cued objects, suggesting that inhibition of objects is maintained in working memory. Additionally, IOR is most robust when objects are easily identified, revealing that inhibition is better maintained when associated with object identity. Finally, the first evidence of long-term IOR is revealed over dozens of displays, suggesting that inhibition of objects leaves a trace in episodic memory. Suppression of objects mediates performance over time by affecting working memory and episodic memory processes.