INVESTIGATING GLOBAL COHERENCE IN NARRATIVE TEXT WITH FMRI METHODOLOGY

这个子项目是许多研究子项目中利用 资源由NIH/NCRR资助的中心拨款提供。子项目和 调查员(PI)可能从NIH的另一个来源获得了主要资金， 并因此可以在其他清晰的条目中表示。列出的机构是 该中心不一定是调查人员的机构。 这项研究的目的是解决阅读在较长跨度上不一致的叙述性文本和在较长跨度上一致的叙述性文本之间的大脑激活模式的差异。行为研究表明，当读者在文本中遇到这样的不一致时，他们的反应时间会减慢(O‘Brien等人，1993)。从功能磁共振成像方法中收集证据将有助于理解叙事文本是如何被处理的，方法是定位在不一致和一致的信息过程中哪些大脑区域被激活。具体地说，如果参与者试图解决文本中的不一致，我们预计在不一致的版本中，前额皮质会有更大的激活，这可以解释O‘Brien等人的阅读时差。(1993)研究。或者，如果前额叶皮质没有更大的激活，那么在阅读较长跨度的文本时涉及的区域将不同于在较短跨度的文本阅读不一致信息时涉及的区域(Sieborger，Ferstl，&von Crammon，2007)。除了前额叶皮质，我们还希望检验一致和不一致文本在背侧额叶内侧皮质(Ferstl等人，2005)、左侧额叶皮质(Kiehl，Laurens，&Ldle，2002)、左侧后梭形回(Kiehl，Laurens，&Ldle，2002)和不稳定区域(基于我们的试点数据)的激活差异。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. The purpose of this study is to address the differences in brain activation patterns between reading narrative texts that are inconsistent across longer spans and narrative texts that are consistent across longer spans. Behavioral research has shown that readers' reaction times slow down when they encounter such an inconsistency in a text (O'Brien et al., 1993). Converging evidence from fMRI methodology would aide in understanding how narrative texts are processed by locating which brain regions are activated during the inconsistent versus consistent information. Specifically, we expect greater activation in the prefrontal cortex in the inconsistent version if participants are trying to resolve the inconsistency in the text, which would explain the reading time difference in the O'Brien et al. (1993) study. Alternatively, if there is not greater activation in the prefrontal cortex, then the regions involved when reading inconsistent information across longer spans of text would differ from the regions involved when reading inconsistent information across shorter spans of text (Sieborger, Ferstl, & von Crammon, 2007). In addition to the prefrontal cortex, we expect to examine differences in activation between the consistent and inconsistent texts in the dorsal fronto-medial cortex (Ferstl et al., 2005), left lateral frontal cortex (Kiehl, Laurens, & Liddle, 2002), left posterior fusiform gyrus (Kiehl, Laurens, & Liddle, 2002) and precuneous regions (based on our pilot data).