Both memory and attention systems contribute to visual search for targets cued by implicitly learned context.
Both memory and attention systems contribute to visual search for targets cued by implicitly learned context.
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DOI：
10.1016/j.visres.2012.10.006
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发表时间：
2013-06-07
期刊：
影响因子：
1.8
通讯作者：
Guerin, Scott A.
中科院分区：
文献类型：
--
作者：
Giesbrecht, Barry;Sy, Jocelyn L.;Guerin, Scott A.
在没有意识的情况下学习环境背景可以促进对与目标相关的信息的视觉处理。根据一种观点，内隐学习背景的好处依赖于参与空间注意力和海马体中介记忆的神经系统。虽然这一观点得到了经验上的支持，但它与传统的海马体功能模型相矛盾。本研究的目的是阐明空间背景对视觉搜索绩效的影响，以及对涉及记忆和注意力的大脑结构的影响。事件相关功能磁共振成像显示，海马区以及视觉和顶叶皮质的活动受到学习的视觉环境的调节，尽管参与者的主观报告和实验后识别任务的表现表明，他们对学习的环境没有明确的了解。此外，初始选择性海马体反应的大小预测了实验结束时观察到的背景所带来的行为益处的大小。结果表明，内隐语境学习受注意和记忆的调节，这些系统相互作用以支持对我们环境的搜索。
Environmental context learned without awareness can facilitate visual processing of goal-relevant information. According to one view, the benefit of implicitly learned context relies on the neural systems involved in spatial attention and hippocampus-mediated memory. While this view has received empirical support, it contradicts traditional models of hippocampal function. The purpose of the present work was to clarify the influence of spatial context on visual search performance and on brain structures involved memory and attention. Event-related functional magnetic resonance imaging revealed that activity in the hippocampus as well as in visual and parietal cortex was modulated by learned visual context even though participants’ subjective reports and performance on a post-experiment recognition task indicated no explicit knowledge of the learned context. Moreover, the magnitude of the initial selective hippocampus response predicted the magnitude of the behavioral benefit due to context observed at the end of the experiment. The results suggest that implicit contextual learning is mediated by attention and memory and that these systems interact to support search of our environment.
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DOI：
10.1523/jneurosci.1776-08.2008
发表时间：
2008-10-01
期刊：
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子：
--
作者：
Bressler SL;Tang W;Sylvester CM;Shulman GL;Corbetta M
通讯作者：
Corbetta M
DOI：
10.1037/0278-7393.29.2.224
发表时间：
2003-03-01
影响因子：
2.6
作者：
Chun, MM;Jiang, YH
通讯作者：
Jiang, YH
影响因子：
2.6
作者：
Chun, MM;Jian, YH
通讯作者：
Jian, YH
DOI：
10.1016/0013-4694(96)95711-9
发表时间：
1996-09-01
期刊：
ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY
影响因子：
--
作者：
Eimer, M
通讯作者：
Eimer, M
影响因子：
25
作者：
Chun, MM;Phelps, EA
通讯作者：
Phelps, EA