Center for Mind/Brain Sciences (CIMeC), University of Trento, Trento, Italy.
Psychophysiology. 2013 Mar;50(3):292-6. doi: 10.1111/psyp.12014. Epub 2013 Jan 14.
To investigate whether semantic information relative to numbers is retained during multiple object individuation, we recorded N2pc--a neural measure of selection/individuation--during a numerical version of the Stroop task. Participants enumerated a varying number of target digits (1 to 4) whose identity was either congruent or incongruent with their numerosity. N2pc amplitudes increased as a function of target numerosity but were little affected by congruency, suggesting that multiple object individuation is a prenumeric stage that does not encode for the number magnitude of the numerosity of the individuated objects.
为了探究在多个物体辨别过程中是否保留了与数字相关的语义信息，我们在数字斯特鲁普任务中记录了 N2pc——一种用于选择/辨别任务的神经测量指标。参与者对不同数量的目标数字（1 到 4）进行计数，这些数字的身份与数量一致或不一致。N2pc 幅度随目标数量的增加而增加，但受一致性的影响很小，这表明多个物体辨别是一个预数字阶段，不编码被辨别物体数量的数量大小。
