Brief foveal masking during scene perception
Brief foveal masking during scene perception
复制标题
DOI：
10.1016/s0001-6918(98)00048-1
复制
发表时间：
1999-03-01
影响因子：
1.8
通讯作者：
d'Ydewalle, C
中科院分区：
文献类型：
--
作者：
van Diepen, PMJ;Ruelens, L;d'Ydewalle, C
在目前的实验中，参与者在物体判断任务的背景下探索场景的线条画，而眼睛条件显示的变化操纵图像中心凹部分的外观。在注视开始后15、35、60或85ms的预设延迟后，用卵形噪声掩膜替换中心凹信息83ms。在控制条件下，在与噪声掩蔽条件下相同的延迟之后，以注视位置为中心的红色椭圆出现了83ms。研究发现，场景探索受到阻碍，特别是在注视过程中早期出现中心凹掩蔽时，重复了早期的发现。此外，注视持续时间随着掩蔽延迟的减少而线性增加，这验证了注视持续时间作为知觉加工速度的衡量标准的有效性。(C)1999 Elsevier Science B.V.保留所有权利。
In the present experiment, participants were exploring line drawings of scenes in the context of an object-decision task, while eye-contingent display changes manipulated the appearance of the foveal part of the image. Foveal information was replaced by an ovoid noise mask for 83 ms, after a preset delay of 15, 35, 60, or 85 ms following the onset of fixations. In control conditions, a red ellipse appeared for 83 ms, centered around the fixation position, after the same delays as in the noise-mask conditions. It was found that scene exploration was hampered especially when foveal masking occurred early during fixations, replicating earlier findings. Furthermore, fixation durations were shown to increase linearly as the mask delay decreased, which validates the fixation duration as a measure of perceptual processing speed. (C) 1999 Elsevier Science B.V. All rights reserved.