Department of Behavioural Sciences and Learning, Linköping University, Sweden.
Brain Lang. 2012 Aug;122(2):103-13. doi: 10.1016/j.bandl.2012.05.006. Epub 2012 Jun 23.
Text cues facilitate the perception of spoken sentences to which they are semantically related (Zekveld, Rudner, et al., 2011). In this study, semantically related and unrelated cues preceding sentences evoked more activation in middle temporal gyrus (MTG) and inferior frontal gyrus (IFG) than nonword cues, regardless of acoustic quality (speech in noise or speech in quiet). Larger verbal working memory (WM) capacity (reading span) was associated with greater intelligibility benefit obtained from related cues, with less speech-related activation in the left superior temporal gyrus and left anterior IFG, and with more activation in right medial frontal cortex for related versus unrelated cues. Better ability to comprehend masked text was associated with greater ability to disregard unrelated cues, and with more activation in left angular gyrus (AG). We conclude that individual differences in cognitive abilities are related to activation in a speech-sensitive network including left MTG, IFG and AG during cued speech perception.
文本提示有助于感知与它们在语义上相关的口语句子（Zekveld、Rudner 等人，2011）。在这项研究中，与句子相关和不相关的提示在中颞回（MTG）和下额前回（IFG）中引起的激活比非词提示更多，无论声音质量如何（噪声中的语音或安静中的语音）。较大的言语工作记忆（WM）容量（阅读广度）与从相关提示中获得的更高的可理解性收益相关，与左上颞回和左前额下回的更少的语音相关激活相关，与相关提示的右侧内侧额前回的更多激活相关。更好地理解掩蔽文本的能力与更好地忽略不相关提示的能力相关，与左角回（AG）的更多激活相关。我们得出结论，认知能力的个体差异与在提示语音感知过程中包括左 MTG、IFG 和 AG 的语音敏感网络中的激活有关。
