Characterizing the in-out asymmetry in visual crowding.
Characterizing the in-out asymmetry in visual crowding.
复制标题
DOI：
10.1167/jov.21.11.10
复制
发表时间：
2021-10-05
影响因子：
1.8
通讯作者：
Clarke ADF
中科院分区：
文献类型：
--
作者：
Chakravarthi R;Rubruck J;Kipling N;Clarke ADF
附近杂波的存在会影响物体的处理能力。掩蔽和视觉拥挤等几种不同的机制被认为是造成这种侧翼诱导干扰的原因。因此，重要的是要确定哪一种机制在任何特定情况下都是有效的。以前的研究表明，外周侧翼干扰靶点多于中心凹侧翼的输入-输出不对称(IOA)是拥挤的诊断。然而，一些研究记录了这种不对称性的发生，特别是在水平子午线以外的位置，这让人怀疑它描述拥挤的能力。在这项研究中，为了确定IOA是否可以诊断拥挤，我们广泛地绘制了它的属性图。我们要求一组相对较大的参与者(n=38)在四个位置之一识别一个短暂呈现的外围字母，两侧是一个向内或向外的字母。我们还通过阻断、随机化或预先提示目标位置来操纵目标位置不确定性和注意分配。使用多水平贝叶斯回归分析，我们在所有位置都发现了稳健的IOA，尽管其强度受到目标位置、位置不确定性和注意分配的影响。我们的发现表明，IOA可以作为拥挤的一个很好的标志，在某种程度上，它在其他侧翼干扰机制中没有观察到，比如掩蔽。
An object's processing is impaired by the presence of nearby clutter. Several distinct mechanisms, such as masking and visual crowding, are thought to contribute to such flanker-induced interference. It is therefore important to determine which mechanism is operational in any given situation. Previous studies have proposed that the in-out asymmetry (IOA), where a peripheral flanker interferes with the target more than a foveal flanker, is diagnostic of crowding. However, several studies have documented inconsistencies in the occurrence of this asymmetry, particularly at locations beyond the horizontal meridian, casting doubt on its ability to delineate crowding. In this study, to determine if IOA is diagnostic of crowding, we extensively charted its properties. We asked a relatively large set of participants (n = 38) to identify a briefly presented peripheral letter flanked by a single inward or outward letter at one of four locations. We also manipulated target location uncertainty and attentional allocation by blocking, randomizing or pre-cueing the target location. Using multilevel Bayesian regression analysis, we found robust IOA at all locations, although its strength was modulated by target location, location uncertainty, and attentional allocation. Our findings suggest that IOA can be an excellent marker of crowding, to the extent that it is not observed in other flanker-interference mechanisms, such as masking.
登录
查看更多内容
DOI：
10.1073/pnas.1615504114
发表时间：
2017-04-25
影响因子：
11.1
作者：
Greenwood, John A.;Szinte, Martin;Cavanagh, Patrick
通讯作者：
Cavanagh, Patrick
影响因子：
8.2
作者：
Kouider, Sid;Berthet, Vincent;Faivre, Nathan
通讯作者：
Faivre, Nathan
DOI：
10.3758/bf03199693
发表时间：
1977-01-01
期刊：
PERCEPTION & PSYCHOPHYSICS
影响因子：
--
作者：
KRUMHANSL, CL
通讯作者：
KRUMHANSL, CL
影响因子：
--
作者：
Carrasco, M;Talgar, CP;Cameron, EL
通讯作者：
Cameron, EL
影响因子：
1.8
作者：
Dayan, Peter;Solomon, Joshua A.
通讯作者：
Solomon, Joshua A.