The Rapid Extraction of Gist—Early Neural Correlates of High-level Visual Processing

The Rapid Extraction of Gist—Early Neural Correlates of High-level Visual Processing
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快速提取 Gistâ 高级视觉处理的早期神经关联

DOI:
10.1162/jocn_a_00100
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发表时间:
2012
影响因子:
3.2
通讯作者:
Gruber
Gruber
中科院分区:
医学3区
文献类型:
--
作者:
Oppermann;Hassler;Jescheniak;Gruber

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人类的认知系统在从我们的视觉环境中提取信息方面非常有效。这种效率是基于获得的知识,这些知识引导我们对相关事件的注意力,并促进对视觉场景中出现的单个对象的识别。基于经验的知识表示不仅包含关于单个对象的信息,还包含关于它们之间的关系的信息,例如单个对象共同出现的典型上下文。目前的EEG研究旨在探索这种关系的知识在视觉场景处理的时间过程中的可用性,使用振荡诱发的γ-波段反应作为神经相关的当前激活的皮层刺激表示。参与者决定两个同时呈现的对象在概念上是否连贯(例如,鼠奶酪)或不(例如,冠状蘑菇)。我们获得了增加诱发的γ-波段反应的连贯场景相比,不连贯的场景开始早在70毫秒后,刺激发作在一个分布式的皮层网络,包括右颞,右额叶,和双侧枕叶皮层。这一发现提供了经验证据的诱发振荡活动的功能重要性,在高层次的视觉超越视觉皮层,因此,神经元相互作用的功能相关性提供了新的见解。它还表明,非常早期的经验为基础的知识,可能被视为一个基本的机制,快速提取的要点的场景。
The human cognitive system is highly efficient in extracting information from our visual environment. This efficiency is based on acquired knowledge that guides our attention toward relevant events and promotes the recognition of individual objects as they appear in visual scenes. The experience-based representation of such knowledge contains not only information about the individual objects but also about relations between them, such as the typical context in which individual objects co-occur. The present EEG study aimed at exploring the availability of such relational knowledge in the time course of visual scene processing, using oscillatory evoked gamma-band responses as a neural correlate for a currently activated cortical stimulus representation. Participants decided whether two simultaneously presented objects were conceptually coherent (e.g., mouse–cheese) or not (e.g., crown–mushroom). We obtained increased evoked gamma-band responses for coherent scenes compared with incoherent scenes beginning as early as 70 msec after stimulus onset within a distributed cortical network, including the right temporal, the right frontal, and the bilateral occipital cortex. This finding provides empirical evidence for the functional importance of evoked oscillatory activity in high-level vision beyond the visual cortex and, thus, gives new insights into the functional relevance of neuronal interactions. It also indicates the very early availability of experience-based knowledge that might be regarded as a fundamental mechanism for the rapid extraction of the gist of a scene.
通过人体电记录和磁记录研究瞬态振荡听觉诱发反应 (40 Hz) 的刺激频率依赖性
DOI: --
发表时间: 1994
期刊:
影响因子: --
作者:
O. Bertrand;C. Pantev
通讯作者: C. Pantev
40 Hz-EEG 与听觉诱发电位的中潜伏期反应之间的关联。
DOI: --
发表时间: 1987
影响因子: 2.2
作者:
E.rol Başar;Bruce R. Rosen;C. Başar;F. Greitschus
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DOI: 10.1523/jneurosci.17-02-00722.1997
发表时间: 1997-01
期刊: The Journal of Neuroscience
影响因子: --
作者:
C. Tallon-Baudry;O. Bertrand;C. Delpuech;J. Pernier
通讯作者: C. Tallon-Baudry;O. Bertrand;C. Delpuech;J. Pernier
DOI: 10.1080/17470210902952480
发表时间: 2010-02
影响因子: 1.7
作者:
F. Oppermann;J. Jescheniak;H. Schriefers;Frauke Görges
通讯作者: F. Oppermann;J. Jescheniak;H. Schriefers;Frauke Görges
DOI: 10.1167/8.3.10
发表时间: 2008-01-01
期刊: JOURNAL OF VISION
影响因子: 1.8
作者:
Chaumon, Maximilien;Drouet, Valerie;Tallon-Baudry, Catherine
通讯作者: Tallon-Baudry, Catherine