Associating peripheral and foveal visual input across saccades: a default mode of the human visual system?

Associating peripheral and foveal visual input across saccades: a default mode of the human visual system?
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跨眼跳关联周边和中央凹视觉输入:人类视觉系统的默认模式?

DOI:
10.1167/14.11.7
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发表时间:
2014
期刊:
影响因子:
1.8
通讯作者:
Herwig
Herwig
中科院分区:
医学4区
文献类型:
--
作者:
Schneider;Herwig

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摘要:眼球运动对视野中特定物体的空间处理分辨率有很大影响。同样的物体在中央凹会有很高的敏锐度,而在外围只有粗略的敏锐度。Herwig和Schneider(即将出版)提出,视觉系统通过根据以前的经验预测中央凹物体在外围的样子来抵消这种分辨率差异,反之亦然。他们证明,无论这些关联的正确性如何,先前习得的外周和中央凹目标信息之间的跨跳眼关联都有助于视觉搜索的表现。假的联想是通过在扫视期间用一个稍微不同的物体替换前额皮层前的物体而习得的。重要的是,参与者通常不会注意到这个对象的变化。这就提出了一个问题,即对物体连续性的感知是否是建立跨视障联想的关键因素。我们用跳后空白或与任务无关的形状变化来干扰学习过程中物体的连续性。有趣的是,视觉搜索表现显示,时间对象连续性的中断(空白)和空间对象连续性的中断(形状变化)都不会损害跨眼学习。因此,跨跳眼学习似乎是视觉系统的一个非常强大的默认机制,这可能与更普遍的动作效果学习概念有关。
Abstract:Abstract Spatial processing resolution of a particular object in the visual field can differ considerably due to eye movements. The same object will be represented with high acuity in the fovea but only coarsely in periphery. Herwig and Schneider (in press) proposed that the visual system counteracts such resolution differences by predicting, based on previous experience, how foveal objects will look in the periphery and vice versa. They demonstrated that previously learned transsaccadic associations between peripheral and foveal object information facilitate performance in visual search, irrespective of the correctness of these associations. False associations were learned by replacing the presaccadic object with a slightly different object during the saccade. Importantly, participants usually did not notice this object change. This raises the question of whether perception of object continuity is a critical factor in building transsaccadic associations. We disturbed object continuity during learning with a postsaccadic blank or a task-irrelevant shape change. Interestingly, visual search performance revealed that neither disruption of temporal object continuity (blank) nor disruption of spatial object continuity (shape change) impaired transsaccadic learning. Thus, transsaccadic learning seems to be a very robust default mechanism of the visual system that is probably related to the more general concept of action–effect learning.
短文:意念运动学习中的意图和注意力
DOI: --
发表时间: 2009
影响因子: 1.7
作者:
Arvid Herwig;Florian Waszak
通讯作者: Florian Waszak
DOI: 10.1037/a0036781
发表时间: 2014-10-01
影响因子: 4.1
作者:
Herwig, Arvid;Schneider, Werner X.
通讯作者: Schneider, Werner X.
DOI: 10.1167/11.5.14
发表时间: 2011-01-01
期刊: JOURNAL OF VISION
影响因子: 1.8
作者:
Eckstein, Miguel P.
通讯作者: Eckstein, Miguel P.
效果预期调节大脑中的异常处理
DOI: --
发表时间: 2007
期刊: Brain Research
影响因子: 2.9
作者:
Florian Waszak;Arvid Herwig
通讯作者: Arvid Herwig
DOI: 10.3758/s13423-011-0205-7
发表时间: 2012-04-01
影响因子: 3.5
作者:
Hillstrom, Anne P.;Scholey, Helen;Benson, Valerie
通讯作者: Benson, Valerie