Visualizing the temporal dynamics of spatial information processing responsible for the Simon effect and its amplification by inhibition of return |
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Authors: | Hilchey Matthew D Ivanoff Jason Taylor Tracy L Klein Raymond M |
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Institution: | aDalhousie University, Canada;bSaint Mary's University, Canada |
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Abstract: | Research has shown that the Simon effect is larger for targets suffering from inhibition of return (IOR). We used speed–accuracy trade-off (SAT) methodology to explore the temporal dynamics underlying this interaction. In Experiment 1, a new method for sorting the data was used to reveal a monotonic decay in the impact of task-irrelevant location information that is responsible for the Simon effect. In Experiment 2, we show that IOR delays both task-relevant identity and task-irrelevant location codes; a relatively longer delay for location than identity codes accounts for the effect of IOR on the Simon effect. When location information was made task-relevant in Experiment 3, IOR delayed the accumulation of this information by about the same amount as when location was irrelevant. The results suggest that IOR, therefore, has a greater effect on location than identity information. |
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Keywords: | PsycINFO classification: 2300 (Human Experimental Psychology) 2346 (Attention) 2340 (Cognitive Processes) 2330 (Motor Processes) 2323 (Visual Perception) |
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