ABSTRACT The ability to represent quantities, either in a symbolic or non-symbolic format, predicts calculation skills. Recording the saccades during gazing at these stimuli allows us to infer the cognitive processing taking place at that moment. The purpose of this research study was to analyse the duration of the first fixation during symbolic and non-symbolic numerical stimuli. We evaluated 32 university students through symbolic and non-symbolic number comparison tasks while recording their eye movements. In addition, they answered a calculation task. Participants spent more time looking first at the stimulus of greater magnitude during the execution of the comparison task (regardless of the presentation format). This measure was not a predictor of calculation skills. The duration of the first fixation was interpreted as a bottom-up measure during numerical stimuli perception, and therefore during the initial stage of cognitive processing.

中文翻译：

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第一次固定持续时间，作为在符号和非符号数值比较中的自下而上的度量（Laduraciónde laprimerafijacióncomo medo medo自下而上的比较对象simbólicasy nosimbólicas）

摘要以符号或非符号格式表示数量的能力可以预测计算技能。在凝视这些刺激时记录下扫视，可以推断出当时发生的认知过程。本研究的目的是分析符号和非符号数值刺激过程中第一次注视的持续时间。我们通过符号和非符号数字比较任务对32名大学生进行了评估，同时记录了他们的眼球运动。另外，他们回答了计算任务。参加者在比较任务执行期间（无论演示形式如何）都花费更多时间首先关注更大幅度的刺激。这项指标不是计算技能的预测指标。