Antoine Sophie, Gevers Wim
Center for Research in Cognition and Neurosciences (CRCN) - ULB Neurosciences Institute (UNI), Université Libre de Bruxelles, Brussels, Belgium.
Psychon Bull Rev. 2016 Feb;23(1):148-55. doi: 10.3758/s13423-015-0856-x.
Close links exist between the processing of numbers and the processing of space: relatively small numbers are preferentially associated with a left-sided response while relatively large numbers are associated with a right-sided response (the SNARC effect). Previous work demonstrated that the SNARC effect is triggered in an automatic manner and is highly flexible. Besides the left-right dimension, numbers associate with other spatial response mappings such as close/far responses, where small numbers are associated with a close response and large numbers with a far response. In two experiments we investigate the nature of this association. Associations between magnitude and close/far responses were observed using a magnitude-irrelevant task (Experiment 1: automaticity) and using a variable referent task (Experiment 2: flexibility). While drawing a strong parallel between both response mappings, the present results are also informative with regard to the question about what type of processing mechanism underlies both the SNARC effect and the association between numerical magnitude and close/far response locations.
相对较小的数字优先与左侧反应相关联，而相对较大的数字则与右侧反应相关联（空间数字反应编码联合效应）。先前的研究表明，空间数字反应编码联合效应以自动方式触发且具有高度灵活性。除了左右维度外，数字还与其他空间反应映射相关联，例如近/远反应，其中小数字与近反应相关联，大数字与远反应相关联。在两项实验中，我们研究了这种关联的本质。使用与大小无关的任务（实验1：自动性）和可变参照任务（实验2：灵活性）观察了大小与近/远反应之间的关联。虽然在两种反应映射之间有很强的相似性，但目前的结果对于空间数字反应编码联合效应以及数字大小与近/远反应位置之间的关联背后是何种类型的处理机制这一问题也具有参考价值。
