Viewing task influences eye movement control during active scene perception
Viewing task influences eye movement control during active scene perception
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DOI：
10.1167/9.3.6
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发表时间：
2009-01-01
影响因子：
1.8
通讯作者：
Henderson, John M.
中科院分区：
文献类型：
--
作者：
Castelhano, Monica S.;Mack, Michael L.;Henderson, John M.
在G. Buswell（1935）和I. A. Yarbus（1967），我们研究了任务指令如何影响眼动控制的特定参数。在本研究中，20名受试者在两个指令集下观看自然场景的彩色照片：视觉搜索和记忆。结果表明，任务影响了一些眼动措施，包括固定的数量和注视时间的特定对象。进一步的分析表明，这两项任务之间的固定区域有质的不同。然而，其他措施，如平均眼跳幅度和个人的固定持续时间保持不变，在整个观看的场景和跨任务。本研究表明，观看任务的偏见选择的场景区域和总措施的固定时间对这些地区，但不影响其他措施，如持续时间的个人固定。
Expanding on the seminal work of G. Buswell (1935) and I. A. Yarbus (1967), we investigated how task instruction influences specific parameters of eye movement control. In the present study, 20 participants viewed color photographs of natural scenes under two instruction sets: visual search and memorization. Results showed that task influenced a number of eye movement measures including the number of fixations and gaze duration on specific objects. Additional analyses revealed that the areas fixated were qualitatively different between the two tasks. However, other measures such as average saccade amplitude and individual fixation durations remained constant across the viewing of the scene and across tasks. The present study demonstrates that viewing task biases the selection of scene regions and aggregate measures of fixation time on those regions but does not influence other measures, such as the duration of individual fixations.