听觉通道下负数的低水平加工引起注意的SNARC效应

采用刺激探测任务,探讨了听觉通道下负数的低水平加工能否引起注意的SNARC效应。结果表明:(1)负数的低水平加工能够产生注意的SNARC效应,即线索为绝对值小的负数时,被试对左耳目标反应更快;线索为绝对值大的负数时,被试对右耳目标反应更快。(2)负数的加工所引起听觉空间注意的转移并不依赖于负数所在的情境,而仅通过其绝对值大小与空间表征发生关联。这一结论与视觉条件下所得到的结论不一致,并支持了系统发生论假说。

The Attentional SNARC Effect Caused by Low-level Processing of Negative Numbers in Auditory Modality

By using stimuli detection task,the present study was to investigate whether low-level processing of negative numbers could cause attentional SNARC(Spatial Numerical Association of Response Codes)effect in the auditory modality.The results showed that:(1)Low-level processing of negative numbers could elicit the attentional SNARC effect in the auditory modality.Left(right)targets are detected significantly faster than right(left)ones when numbers with small(large)absolute value are preceded.(2)The spatial shifts of attention caused by negative numbers depended upon their absolute value,independent of their context,which was inconsistent with the findings in the visual modality,revealing that the spatial shifts of attention caused by negative numbers were special in different modalities and supported the phylogenetic hypothesis.