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  • Title: Object and spatial visualizers have different object-processing patterns: behavioral and ERP evidence.
    Author: Li S, Gong D, Jia S, Zhang W, Ma Y.
    Journal: Neuroreport; 2011 Dec 07; 22(17):860-4. PubMed ID: 21968324.
    Abstract:
    Both behavioral and neurophysiological evidence shows the advantage of object visualizers in object-related tasks relative to spatial visualizers. It is still unclear, in which stage the advantage appears. In this study, a behavioral experiment revealed that spatial visualizers' performance decreased evidently from short delay to long delay in a high-load condition, but object visualizers performed stably. In addition, an event-related potential experiment found the slow cortical potentials for the spatial visualizer to be more negative in relation to object visualizers in the 1800-3800 ms stage, although spatial visualizers performed worse than the object visualizers. Therefore, the processing advantage of object visualizers, which is caused by the higher neural efficiency of object visualizers than spatial visualizers in object tasks, seems to be at the retention stage rather than the encoding stage.
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