作者: David Braze , W. Einar Mencl , Whitney Tabor , Kenneth R. Pugh , R. Todd Constable
DOI: 10.1016/J.CORTEX.2009.11.005
关键词: Functional magnetic resonance imaging 、 Speech recognition 、 Sentence processing 、 Object (grammar) 、 Comprehension 、 Cosine similarity 、 Sentence 、 Categorization 、 Cognitive psychology 、 Modality (human–computer interaction) 、 Psychology
摘要: We present new evidence based on fMRI for the existence and neural architecture of an abstract supramodal language system that can integrate linguistic inputs arising from different modalities such speech print each activate a common code. Working with sentence material, our aim was to find out where putative is located how it responds comprehension challenges. To probe these questions we examined BOLD activity in experienced readers while they performed semantic categorization task matched written or spoken sentences were either well-formed contained anomalies syntactic form pragmatic content. On whole-brain scans, both increased net over non-anomalous baseline sentences, chiefly at left frontal temporal regions heteromodal cortex. The anomaly-sensitive sites correspond approximately those previous studies (Michael et al., 2001; Constable 2004) have found be sensitive other differences complexity (object relative minus subject relative). Regions interest (ROIs) defined by peak response anomaly averaging modality conditions. Each ROI showed same pattern across types modality. Voxel-by-voxel exploration whole brain cosine similarity measure function confirmed specificity zones.