ABSTRACT

The present study investigated the impact of the MRI environment on eye-movement measures in the visual-world paradigm. 24 neurotypical young adults performed a linguistic prediction task in a typical lab setting (Lab) and 22 did so during MRI scanning (Scanner). Data analyses focused on eye-tracking data quality and the time course and magnitude of prediction effects. Data quality was reduced in the Scanner as compared to the Lab, as indicated by a higher rate of track loss and saccades/fixations of atypical duration. Predictive eye movement patterns were generally similar in timing and magnitude between the Lab and Scanner, although there was modest evidence for increased prediction effects in the Scanner. In the Scanner environment only, predictive eye movements were linked to better task performance. Evidently, the MRI environment can enhance prediction effects and their relationship to task performance, possibly due to increased deployment of cognitive control mechanisms.

摘要

本研究调查了 MRI 环境对视觉世界范式中眼动测量的影响。24 名神经典型的年轻人在典型的实验室环境 (Lab) 中执行了语言预测任务，22 名在 MRI 扫描 (Scanner) 期间执行了此任务。数据分析侧重于眼动追踪数据质量以及预测效果的时间进程和幅度。与实验室相比，扫描仪中的数据质量有所降低，这由更高的轨道丢失率和非典型持续时间的跳视/注视表明。实验室和扫描仪之间的预测性眼球运动模式在时间和幅度上大致相似，尽管有适度的证据表明扫描仪的预测效果增加。仅在扫描仪环境中，预测性眼球运动与更好的任务性能相关联。显然，