The hippocampus supports encoding of between-domain associations within working memory

被引：39
|
作者：
Piekema, Carinne [1 ,2 ]
Kessels, Roy P. C. [2 ,3 ,4 ]
Rijpkema, Mark [2 ]
Fernandez, Guillen [2 ,5 ]
机构：
[1] Univ Utrecht, Helmholtz Inst, NL-3508 TC Utrecht, Netherlands
[2] Radboud Univ Nijmegen, Donders Inst Brain Cognit & Behav, NL-6500 HE Nijmegen, Netherlands
[3] Radboud Univ Nijmegen, Med Ctr, Dept Geriatr Med, NL-6500 HB Nijmegen, Netherlands
[4] Dept Med Psychol, NL-6500 HB Nijmegen, Netherlands
[5] Dept Neurol, NL-6500 HB Nijmegen, Netherlands
来源：
LEARNING & MEMORY | 2009年 / 16卷 / 04期
关键词：
MEDIAL TEMPORAL-LOBE; SHORT-TERM-MEMORY; RECOGNITION MEMORY; MACAQUE MONKEY; SPATIAL MEMORY; CORTEX; ACTIVATION; LESIONS; IMAGES;
D O I：
10.1101/lm.1283109
中图分类号：
Q189 [神经科学];
学科分类号：
071006 ;
摘要：
It has been established that the medial temporal lobe, including the hippocampus, is crucial for associative memory. The aim of the current functional magnetic resonance imaging (fMRI) study was to investigate whether the hippocampus is differentially activated for associations between items processed in the same neocortical region (within-domain) as compared with associations between items processed in different neocortical regions (between-domain). Here, we show that the hippocampus is significantly more active for between-domain associations compared with within-domain associations. Thus, the hippocampus is important for associative encoding, and furthermore, shows greater activation when the stimuli to be associated come from different stimulus categories.
引用
收藏
页码：231 / 234
页数：4
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