Raymer Anastasia M, Singletary Floris, Rodriguez Amy, Ciampitti Maribel, Heilman Kenneth M, Rothi Leslie J Gonzalez
Department of ESSE, Old Dominion University, Norfolk, Virginia 23529-0136, USA.
J Int Neuropsychol Soc. 2006 Nov;12(6):867-82. doi: 10.1017/S1355617706061042.
Links between verbs and gesture knowledge suggest that verb retrieval may be particularly amenable to gesture+verbal training (GVT) in aphasia compared to noun retrieval. This study examines effects of GVT for noun and verb retrieval in nine individuals with aphasia subsequent to left hemisphere stroke. Participants presented an array of noun and verb retrieval deficits, including impairments of semantic and/or phonologic processing. In a single-participant experimental design, we investigated effects of GVT for noun and verb retrieval in two counterbalanced treatment phases. Effects were evaluated in spoken naming and gesture production to pictured objects and actions. Spoken naming improvements associated with large effect sizes were noted for trained nouns (5/9) and verbs (5/9); no improvements were evident for untrained words. Gesture production improved for trained nouns (8/9) and verbs (6/9), and for untrained nouns (2/9) and verbs (2/9). No significant differences were evident between nouns and verbs in spoken naming or gesture production. Improvements were evident across individuals with varied sources of word retrieval impairments. GVT has the potential to improve communication by increasing spoken word retrieval of trained nouns and verbs and by promoting use of gesture as a means to communicate when word retrieval fails.
动词与手势知识之间的联系表明，与名词提取相比，失语症患者的动词提取可能特别适合接受手势+言语训练（GVT）。本研究考察了GVT对9名左半球中风后失语症患者名词和动词提取的影响。参与者存在一系列名词和动词提取缺陷，包括语义和/或语音处理受损。在单病例实验设计中，我们在两个平衡的治疗阶段研究了GVT对名词和动词提取的影响。通过对图片中物体和动作的口语命名和手势生成来评估效果。对于训练过的名词（5/9）和动词（5/9），口语命名有显著改善，效应量较大；未训练的单词没有明显改善。训练过的名词（8/9）和动词（6/9）以及未训练的名词（2/9）和动词（2/9）的手势生成均有改善。在口语命名或手势生成方面，名词和动词之间没有明显差异。在有不同单词提取损伤来源的个体中，改善都很明显。GVT有可能通过增加训练过的名词和动词的口语单词提取，以及在单词提取失败时促进使用手势作为交流手段来改善沟通。
