Distortions in recall from visual memory: two classes of attractors at work.
Distortions in recall from visual memory: two classes of attractors at work.
复制标题
DOI：
10.1167/10.2.24
复制
发表时间：
2010-02-24
影响因子：
1.8
通讯作者：
Sekuler R
中科院分区：
文献类型：
--
作者：
Huang J;Sekuler R
在三个实验中，一个匹配程序产生了对Gabor刺激空间频率的短期记忆的直接、模拟测量。实验一表明，当只呈现一个Gabor进行研究时，仅仅几秒的保留间隔就足以增加匹配的可变性，这表明记忆中的噪音远远超过视觉中的噪音。实验2发现，当在每个实验中呈现一对Gabor时，其中一个Gabor的记忆外观受到以下因素的影响：(1)其空间频率与伴随的与任务无关的非目标刺激的空间频率之间的关系；(2)在先前实验中看到的Gabor的平均空间频率。这两种影响在非常不同的时间尺度上起作用，它们的影响大致是相加的，每一种都是记忆外观的吸引器。实验3表明，及时的前刺激线索允许选择性注意减少与任务无关的非目标的影响，而不会削弱在之前的实验中看到的刺激的影响。这两个可分离的吸引子似乎影响不同的过程，其中感知受到非目标刺激的影响，记忆受到先前试验中看到的刺激的影响。
In a trio of experiments, a matching procedure generated direct, analogue measures of short-term memory for the spatial frequency of Gabor stimuli. Experiment 1 showed that when just a single Gabor was presented for study, a retention interval of just a few seconds was enough to increase the variability of matches, suggesting that noise in memory substantially exceeds that in vision. Experiment 2 revealed that when a pair of Gabors was presented on each trial, the remembered appearance of one of the Gabors was influenced by: (1) the relationship between its spatial frequency and the spatial frequency of the accompanying, task-irrelevant non-target stimulus; and (2) the average spatial frequency of Gabors seen on previous trials. These two influences, which work on very different time scales, were approximately additive in their effects, each operating as an attractor for remembered appearance. Experiment 3 showed that a timely pre-stimulus cue allowed selective attention to curtail the influence of a task-irrelevant non-target, without diminishing the impact of the stimuli seen on previous trials. It appears that these two separable attractors influence distinct processes, with perception being influenced by the non-target stimulus and memory being influenced by stimuli seen on previous trials.
登录
查看更多内容
影响因子：
1.8
作者：
Haberman J;Harp T;Whitney D
通讯作者：
Whitney D
影响因子：
1.8
作者：
Bays PM;Catalao RF;Husain M
通讯作者：
Husain M
影响因子：
1.8
作者：
Chong, SC;Treisman, A
通讯作者：
Treisman, A
影响因子：
1.8
作者：
Demeyer, Maarten;De Graef, Peter;Verfaillie, Karl
通讯作者：
Verfaillie, Karl
影响因子：
1.8
作者：
DAVIS, ET;YAGER, D;KIRKLAND, BA
通讯作者：
KIRKLAND, BA