类比数量表征的线索:离散量还是连续量

Representation of Analog Magnitude:Discrete Quantity or Continuous Quantity

运用Stroop研究范式,对30名成人被试的类比数量表征线索进行了研究。结果发现:在类比数量的小数和大数段上,不存在表征线索的分化;在个数任务中不出现Stroop效应,但被试在强不一致条件下的错误率显著高于强一致条件下的错误率;在累积面积任务中出现Stroop效应,且在弱不一致、强不一致条件下的反应时、错误率都显著高于强一致、弱一致条件下的反应时、错误率。以上结果表明被试在进行类比数量表征时,可以同时提取离散量线索和连续量线索,但是对离散量线索的抑制要难于对连续量线索的抑制。

The Stroop paradigm was adopted to investigate the cue of analog magnitude representation. Participants were 30 adults. In one task, the participants were asked to choose the set which has larger number of elements. In anther task, the participants were asked to choose the set which has larger continuous amount. It was shown that the Stroop effect only occurred in continuous amount task, but not in elements number task. From the further analysis we found that the congruent degree between discrete quantity and continuous quantity influence both tasks. These results suggest that both continuous and discrete quantity may be extracted automatically from a scene and represented internally, and it was much more difficult to restrain discrete quantity than continuous quantity which leads to Stroop interference.