Recognition memory is modulated by visual similarity
Recognition memory is modulated by visual similarity
复制标题
识别记忆受视觉相似性调节
DOI：
10.1016/j.neuroimage.2005.12.014
复制
发表时间：
2006
期刊：
影响因子：
5.7
通讯作者：
A. Ishai
中科院分区：
文献类型：
--
作者：
Elena Yago;A. Ishai
我们使用事件相关功能磁共振成像来测试识别记忆是否依赖于熟悉原型和新样本之间的视觉相似性。受试者记忆肖像，风景，和抽象的组成，由六个画家具有独特的风格，后来进行了记忆识别任务。原型与新的样本一起呈现，这些样本在视觉上相似或不相似。行为，新奇，不相似的项目检测更快，更准确。我们发现了一个分布式皮质网络的激活，包括视觉皮层中的面部和物体选择区域，熟悉的原型比新的样本引起更强的反应;顶叶皮层中的注意力相关区域，新样本引起的反应随着与原型相似性的降低而减少;以及海马体和顶叶和前额叶皮层中与记忆相关的区域，在这些区域，不同的样本会引起更强烈的反应。我们的研究结果表明，识别记忆介导的分类新的范例作为匹配或不匹配，基于他们的视觉相似性熟悉的原型。
We used event-related fMRI to test whether recognition memory depends on visual similarity between familiar prototypes and novel exemplars. Subjects memorized portraits, landscapes, and abstract compositions by six painters with a unique style, and later performed a memory recognition task. The prototypes were presented with new exemplars that were either visually similar or dissimilar. Behaviorally, novel, dissimilar items were detected faster and more accurately. We found activation in a distributed cortical network that included face- and object-selective regions in the visual cortex, where familiar prototypes evoked stronger responses than new exemplars; attention-related regions in parietal cortex, where responses elicited by new exemplars were reduced with decreased similarity to the prototypes; and the hippocampus and memory-related regions in parietal and prefrontal cortices, where stronger responses were evoked by the dissimilar exemplars. Our findings suggest that recognition memory is mediated by classification of novel exemplars as a match or a mismatch, based on their visual similarity to familiar prototypes.
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DOI：
10.1016/s0926-6410(02)00122-2
发表时间：
2002-08-01
期刊：
COGNITIVE BRAIN RESEARCH
影响因子：
--
作者：
Reber, PJ;Wong, EC;Buxton, RB
通讯作者：
Buxton, RB
DOI：
10.1073/pnas.95.2.747
发表时间：
1998-01-20
影响因子：
11.1
作者：
Reber, PJ;Stark, CEL;Squire, LR
通讯作者：
Squire, LR
影响因子：
4.1
作者：
MCCLELLAND, JL;RUMELHART, DE
通讯作者：
RUMELHART, DE
失忆症的言语类别学习受损。
DOI：
--
发表时间：
2000
期刊：
Behavioral neuroscience.
影响因子：
--
作者：
Kitchener,EG;Squire,LR
通讯作者：
Squire,LR
DOI：
10.1101/lm.40701
发表时间：
2001
期刊：
Learning & memory (Cold Spring Harbor, N.Y.)
影响因子：
--
作者：
Stark,CE;Squire,LR
通讯作者：
Squire,LR