Purdy Mary, Van Dyke Julie A
Southern Connecticut State University, Department of Communication Disorders, New Haven, CT.
Haskins Laboratories, New Haven, CT.
J Med Speech Lang Pathol. 2011 Sep 1;19(3):45-53.
Management of patients with aph asia often focuses on training nonverbal augmentative communication strategies; however, these strategies frequently do not generalize to natural situations. The limited success may be because training waS not sufficient to produce an integrated multimodal semantic representation. The purpose of this study was to examine whether simultaneous training of stimuli in both verbal and nonverbal modalities would solidify the links within the semantic network and improve switching among modalities as needed in conversation. Two individuals with severe aphasia participated in 6 to 8 hours of Multi moda I Communication Training (MeT), during which they conveyed a concept by verbalizing, gesturing, writing, and drawing. After practice with all modalities for a single concept, a new concept was introduced. Results showed that one participant increased conveyance of concepts on the functional communication task using a variety of modalities. Although some improvement was seen with the second participant, his overall performance remained poor, likely because of a greater impairment in semantic knowledge. After a brief period of semantic training, the second participant demonstrated additional gains. Thus, MeT may serve to increase switching among verbal and nonverbal modalities in individuals with intact semantic representations, thereby increasing the likelihood that individuals will use an alternative method to communicate.
失语症患者的管理通常侧重于训练非语言辅助沟通策略；然而，这些策略往往无法推广到自然情境中。成效有限可能是因为训练不足以产生综合的多模态语义表征。本研究的目的是检验在言语和非言语两种模态中同时进行刺激训练是否能巩固语义网络中的联系，并改善对话中根据需要在不同模态之间的转换。两名重度失语症患者参加了6至8小时的多模态沟通训练（MeT），在此期间，他们通过言语表达、手势、书写和绘画来传达一个概念。在对单个概念的所有模态进行练习后，引入了一个新的概念。结果显示，一名参与者在功能性沟通任务中使用多种模态增加了概念的传达。虽然第二名参与者有一些进步，但他的整体表现仍然很差，可能是因为语义知识受损更严重。经过短暂的语义训练后，第二名参与者有了更多进步。因此，多模态沟通训练可能有助于增强语义表征完整的个体在言语和非言语模态之间的转换能力，从而增加个体使用替代方法进行沟通的可能性。
