Asymmetric influences of temporally vs. nasally presented masked visual information: Evidence for collicular contributions to nonconscious priming effects

被引：23
作者：
Ansorge, U [1 ]
机构：
[1] Univ Bielefeld, D-33501 Bielefeld, Germany
来源：
BRAIN AND COGNITION | 2003年 / 51卷 / 03期
关键词：
direct parameter specification; metacontrast; nonconscious processing; priming; sensorimotor processing; superior colliculus; visuospatial attention;
D O I：
10.1016/S0278-2626(03)00034-4
中图分类号：
Q189 [神经科学];
学科分类号：
071006 ;
摘要：
It was tested whether the retino-collicular projection allows for the processing of nonconsciously registered visual information in healthy individuals. Masked primes were presented to different visual hemifields. Because the retino-collicular projection is stronger for temporal than for nasal hemifields, priming should be stronger by temporal than by nasal primes. This pattern was tested in two experiments (Experiments 1 and 3). Further, with less peripheral primes, only available to weaker parts of the retino-collicular projection, hemifield asymmetries of priming vanished (Experiment 2). In conclusion, the study offers first evidence for collicular contributions to nonconscious priming effects by visual information in healthy individuals. (C) 2003 Elsevier Science (USA). All rights reserved.
引用
收藏
页码：317 / 325
页数：9
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