Coarse-to-fine encoding of spatial frequency information into visual short-term memory for faces but impartial decay.
Coarse-to-fine encoding of spatial frequency information into visual short-term memory for faces but impartial decay.
复制标题
DOI：
10.1037/a0023091
复制
发表时间：
2011-08
影响因子：
2.1
通讯作者：
Bentin, Shlomo
中科院分区：
文献类型：
--
作者：
Gao, Zaifeng;Bentin, Shlomo
面部感知研究调查了如何在形成感知表征时从视网膜显示中提取空间频率（SF），或者在任务强加的分类过程中选择性使用它们。在这里，我们集中在编码的顺序低空间频率（LSF）和高空间频率（HSF）从知觉表征到视觉短期记忆（VSTM）。我们还研究了在研究测试刺激发作的过程中，不同的SF范围是否以不同的速率从VSTM衰减。一个旧的/新的VSTM范例中使用的两个宽带面形成的积极的设置和探针保留低或高SF范围。500 ms的曝光时间足以在感知表征中编码HSF和LSF（实验1）。然而，当阳性集暴露500 ms时，与HSF探针相比，LSF探针在VSTM中被更好地识别;这种效应在800 ms暴露时间消失（实验2）。后向掩蔽暴露800 ms的阳性组重新建立了LSF探针优势（实验3）。对于LSF-和HSF-探针（实验4），高达10秒的衰减速度相似。这些结果表明，LSF提取和合并到VSTM比HSF更快，支持从粗到细的顺序，而从VSTM的衰减不受SF。
Face perception studies investigated how spatial frequencies (SF) are extracted from retinal display while forming a perceptual representation, or their selective use during task-imposed categorization. Here we focused on the order of encoding low-spatial frequencies (LSF) and high-spatial frequencies (HSF) from perceptual representations into visual short-term memory (VSTM). We also investigated whether different SF-ranges decay from VSTM at different rates during a study-test stimulus-onset asynchrony. An old/new VSTM paradigm was used in which two broadband faces formed the positive set and the probes preserved either low or high SF ranges. Exposure time of 500 ms was sufficient to encode both HSF and LSF in the perceptual representation (experiment 1). Nevertheless, when the positive-set was exposed for 500 ms, LSF-probes were better recognized in VSTM compared with HSF-probes; this effect vanished at 800-ms exposure time (experiment 2). Backward masking the positive set exposed for 800 ms re-established the LSF-probes advantage (experiment 3). The speed of decay up to 10 seconds was similar for LSF- and HSF-probes (experiment 4). These results indicate that LSF are extracted and consolidated into VSTM faster than HSF, supporting a coarse-to-fine order, while the decay from VSTM is not governed by SF.
登录
查看更多内容
影响因子：
3.5
作者：
Eng, HY;Chen, DY;Jiang, YH
通讯作者：
Jiang, YH
DOI：
10.1073/pnas.93.24.13468
发表时间：
1996-11-26
影响因子：
11.1
作者：
Baddeley, A
通讯作者：
Baddeley, A
DOI：
10.3758/bf03213093
发表时间：
1996-05-01
期刊：
PERCEPTION & PSYCHOPHYSICS
影响因子：
--
作者：
Costen, NP;Parker, DM;Craw, I
通讯作者：
Craw, I
影响因子：
1.8
作者：
Bays PM;Catalao RF;Husain M
通讯作者：
Husain M
影响因子：
3.2
作者：
Bentin, Shlomo;Golland, Yulia;Moscovitch, Morris
通讯作者：
Moscovitch, Morris