Reading without words or target detection? A re-analysis and replication fMRI study of the Landolt paradigm
Reading without words or target detection? A re-analysis and replication fMRI study of the Landolt paradigm
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没有文字或目标检测的阅读？
DOI：
10.1007/s00429-018-1698-x
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发表时间：
2018
影响因子：
3.1
通讯作者：
Günther
中科院分区：
文献类型：
--
作者：
van Tongelen;Hillen;Horbach;Radach;Günther
Landolt范式是一种视觉扫描任务，旨在在没有正字法或词汇信息的情况下唤起类似阅读的眼动，从而允许（子）词汇与视觉处理的分离。为此，将真实的单词句子中的所有字母交换为闭合的兰道尔特环，其中0、1或2个开放的兰道尔特环作为每个兰道尔特句子中的目标。一项初步的fMRI区块设计研究（Hillen et al. in Front Neurosci 7：1-14，2013）表明，Landolt范式具有特殊的神经特征，招募正确的IPS和SPL作为内源性注意力网络的一部分。然而，在该分析中，大脑对目标检测的反应不能与处理没有目标的兰道尔特刺激的反应分开。本研究提出了两个fMRI实验测试的问题是否目标或Landolt刺激本身，导致正确的IPS/SPL激活。实验1是对Hillen等人（Front Neurosci 7：1-14，2013）数据的事件相关再分析。实验2是一项重复研究，采用新的样品和相同的程序。在这两个实验中，右IPS/SPL被招募在兰道尔条件相比，正交刺激，即使在没有任何目标的刺激，这表明兰道尔任务本身的属性触发这个右顶叶激活。这些研究结果的背景下讨论的行为和神经影像学研究的健康阅读以及发展和获得性阅读障碍。因此，这种神经影像学证据可能会鼓励在检查阅读障碍的背景下使用Landolt范式，因为它在不干扰亚词汇信息的情况下，在类似阅读的刺激扫描过程中，利用视觉注意力的方向。
The Landolt paradigm is a visual scanning task intended to evoke reading-like eye-movements in the absence of orthographic or lexical information, thus allowing the dissociation of (sub-) lexical vs. visual processing. To that end, all letters in real word sentences are exchanged for closed Landolt rings, with 0, 1, or 2 open Landolt rings as targets in each Landolt sentence. A preliminary fMRI block-design study (Hillen et al. in Front Hum Neurosci 7:1–14, 2013) demonstrated that the Landolt paradigm has a special neural signature, recruiting the right IPS and SPL as part of the endogenous attention network. However, in that analysis, the brain responses to target detection could not be separated from those involved in processing Landolt stimuli without targets. The present study presents two fMRI experiments testing the question whether targets or the Landolt stimuli per se, led to the right IPS/SPL activation. Experiment 1 was an event-related re-analysis of the Hillen et al. (Front Hum Neurosci 7:1–14, 2013) data. Experiment 2 was a replication study with a new sample and identical procedures. In both experiments, the right IPS/SPL were recruited in the Landolt condition as compared to orthographic stimuli even in the absence of any target in the stimulus, indicating that the properties of the Landolt task itself trigger this right parietal activation. These findings are discussed against the background of behavioural and neuroimaging studies of healthy reading as well as developmental and acquired dyslexia. Consequently, this neuroimaging evidence might encourage the use of the Landolt paradigm also in the context of examining reading disorders, as it taps into the orientation of visual attention during reading-like scanning of stimuli without interfering sub-lexical information.
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影响因子：
2.5
作者：
S. Valdois;Marie-Line Bosse;B. Ans;S. Carbonnel;S. Carbonnel;Michel Zorman;D. David;J. Pellat
通讯作者：
S. Valdois;Marie-Line Bosse;B. Ans;S. Carbonnel;S. Carbonnel;Michel Zorman;D. David;J. Pellat
对患有获得性阅读障碍的词汇和分段读者进行基于眼动的阅读干预
影响因子：
2.7
作者：
Ablinger;von Heyden;Vorstius;Radach
通讯作者：
Radach
影响因子：
2.9
作者：
Lobier MA;Peyrin C;Pichat C;Le Bas JF;Valdois S
通讯作者：
Valdois S
影响因子：
3.2
作者：
de Fockert, J;Rees, G;Lavie, N
通讯作者：
Lavie, N
影响因子：
2.9
作者：
Gagl B;Hawelka S;Hutzler F
通讯作者：
Hutzler F