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

本研究调查了视觉环境范式中MRI环境对眼动措施的影响。24名神经型年轻人在典型的实验室环境（Lab）中执行语言预测任务，而22名在MRI扫描过程中（Scanner）执行语言预测任务。数据分析的重点是眼动数据质量，时程和预测效果的大小。与实验室相比，扫描仪的数据质量降低了，这是因为磁迹丢失率和非典型持续时间的扫视/注视率更高。尽管有适度的证据表明在Scanner中的预测效果有所提高，但在实验室和Scanner之间，可预测的眼动模式在时间和幅度上通常相似。仅在扫描仪环境中，预测性眼动与更好的任务性能相关。显然，