Cueing Attention by Relative Motion in the Periphery of the Visual Field
Cueing Attention by Relative Motion in the Periphery of the Visual Field
复制标题
通过视野周边的相对运动来提示注意力
作者：
Poggel D.A;Strasburger H;MacKeben M.
视觉刺激的突然变化引起注意。观察者的身体运动产生视网膜流场模式，其中包含有关他/她自己的速度和轨迹以及其他物体的相对运动的信息。我们研究了相对运动作为注意力提示的有效性，并将其与通过视野远缘出现框架的传统提示进行比较。在由 10 名受试者组成的一组中，静态 Gabor 光栅方向感知的对比度阈值[四种替代非强制选择 (4ANFC)] 任务在 20°、30°、40° 和 60° 偏心率下确定。随后，在相同位置测量没有环形提示和有环形提示的 Gabor 图案方向的近阈值辨别性能。然后将相同的 Gabor 模式嵌入随机点流场中，并将无提示辨别性能与呈现相对运动提示 (RMC)（即沿流场相反方向运动的小随机点场）后的性能进行比较。传统的环形提示和 RMC 都显着提高了所有测试位置的辨别性能。根据本研究选择的参数，RMC 的效果略低于传统提示，但其效果在视野的远周边部分更为明显。因此，相对运动是一种强有力的提示，可以吸引人们对周围视觉对象的注意，并像传统的环形提示一样有效地提高表现。这些发现对日常生活具有实际意义，特别是对于驾驶和导航等任务。
Sudden changes of visual stimulation attract attention. The observer's body motion generates retinal-flow field patterns containing information about his/her own speed and trajectory and relative motion of other objects. We investigated the effectiveness of relative motion as an attentional cue and compared it with conventional cueing by appearance of a frame in the far periphery of the visual field. In a group of ten subjects, contrast thresholds for the perception of static Gabor grating orientation [four alternative non-forced-choice (4ANFC)] task were determined at 20°, 30°, 40°, and 60° eccentricity. Subsequently, near-threshold discrimination performance of Gabor pattern orientation without versus with a ring-shaped cue was measured at the same positions. The same Gabor patterns were then presented embedded in a random-dot flow field, and uncued discrimination performance was compared with performance after presentation of a relative-motion cue (RMC), ie a small random-dot field with motion in the opposite direction of the flow field. Both the conventional ring cue and the RMC induced significantly increased discrimination performance at all test locations. With the parameters chosen for this study, the RMC was slightly less effective than the conventional cue, but its effects were somewhat more pronounced in the far periphery of the visual field. Thus, relative motion is a powerful cue to attract attention to peripheral visual objects and improves performance as effectively as a conventional ring cue. The findings have practical relevance for everyday life, in particular for tasks like driving and navigation.
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认知神经科学的关注：概述。
DOI：
--
发表时间：
1995
期刊：
影响因子：
--
作者：
M. Posner
通讯作者：
M. Posner
DOI：
10.1364/josaa.7.000160
发表时间：
1990
期刊：
Journal of the Optical Society of America. A, Optics and image science
影响因子：
--
作者：
W. Warren;D. Hannon
通讯作者：
W. Warren;D. Hannon
影响因子：
1.8
作者：
David Regan
通讯作者：
David Regan
影响因子：
2.5
作者：
LEVITT, JB;KIPER, DC;MOVSHON, JA
通讯作者：
MOVSHON, JA
影响因子：
56.9
作者：
CORBETTA, M;MIEZIN, FM;PETERSEN, SE
通讯作者：
PETERSEN, SE