Characteristics of eye movements in 3-D object learning: Comparison between within-modal and cross-modal object recognition
Characteristics of eye movements in 3-D object learning: Comparison between within-modal and cross-modal object recognition
复制标题
3D 物体学习中眼动的特征：模态内和跨模态物体识别的比较
作者：
Ueda;Y.;and Saiki;J.
最近的研究表明，在视觉学习过程中获得的对象表征取决于在测试阶段的编码方式。然而，模态内学习（例如视觉学习-视觉识别）和跨模态学习（例如视觉学习-触觉识别）之间的差异的本质仍然未知。为了解决这个问题，我们利用眼动数据，并在跨模态对象识别实验的学习阶段研究对象学习策略。被告知测试模式的观察者研究了一个不熟悉的视觉呈现的3-D对象。定量分析表明，识别性能是一致的，无论旋转的跨模态条件下，但降低时，物体旋转模态内的条件。此外，在学习过程中的眼动显着不同的内通道和跨通道的学习。跨通道学习的固定比通道内学习更分散。此外，在整个试验过程中，固定持续时间变得更长的跨通道学习比内通道学习。这些结果表明，在学习阶段采用的对象学习策略不同，根据测试阶段的模态，这种差异导致不同的识别性能。
Recent studies have indicated that the object representation acquired during visual learning depends on the encoding modality during the test phase. However, the nature of the differences between within-modal learning (eg visual learning-visual recognition) and cross-modal learning (eg visual learning – haptic recognition) remains unknown. To address this issue, we utilised eye movement data and investigated object learning strategies during the learning phase of a cross-modal object recognition experiment. Observers informed of the test modality studied an unfamiliar visually presented 3-D object. Quantitative analyses showed that recognition performance was consistent regardless of rotation in the cross-modal condition, but was reduced when objects were rotated in the within-modal condition. In addition, eye movements during learning significantly differed between within-modal and cross-modal learning. Fixations were more diffused for cross-modal learning than in within-modal learning. Moreover, over the course of the trial, fixation durations became longer in cross-modal learning than in within-modal learning. These results suggest that the object learning strategies employed during the learning phase differ according to the modality of the test phase, and that this difference leads to different recognition performances.