Division of Language and Communication Science, City University of London , London, UK.
Clin Linguist Phon. 2020 Aug 2;34(8):693-717. doi: 10.1080/02699206.2019.1692075. Epub 2019 Nov 18.
Conversation is important in everyday life and this importance is not diminished in aphasia. Context parameters such as topic and partner are known to influence the linguistic content of conversations. With gesture being closely linked to language, these parameters may influence gestures used in conversations. This has not been investigated in previous studies. This study explored the spontaneous use of gestures in the conversations of participants with aphasia (PWA) and neurologically healthy participants (NHP). It aimed to examine the influence of conversation topic and partner on gesture production overall and on the production of semantically rich and empty gestures. Twenty PWA and 21 NHP were filmed during conversations with different topics (narrative & procedural) and different partners (familiar & unfamiliar). Analysis 1 investigated the influence of the conversation topic on gesture production overall and on the production of semantically rich and empty gestures. In Analysis 2, the influence of the conversation partner on gesture production was investigated. Both groups produced significantly more gestures in procedural than in narrative conversations. Moreover, PWA and NHP produced significantly more semantically rich gestures in procedural conversations. In terms of the conversation partner, both groups produced significantly more gestures in the conversations with the unfamiliar than in those with the familiar conversation partner. For all findings, there were no group differences and no interactions between group and context parameters. These findings shed light on factors that influence gesture production and suggest that both modalities should be viewed together as a communicative resource for PWA.
对话在日常生活中很重要，在失语症中这种重要性并没有降低。语境参数（如话题和伙伴）已知会影响对话的语言内容。由于手势与语言密切相关，这些参数可能会影响对话中使用的手势。这在以前的研究中没有被调查过。本研究探讨了失语症患者（PWA）和神经健康参与者（NHP）在对话中自发使用手势的情况。它旨在检查对话主题和伙伴对整体手势产生以及语义丰富和空手势产生的影响。20 名 PWA 和 21 名 NHP 在与不同话题（叙事和程序）和不同伙伴（熟悉和不熟悉）的对话中被拍摄。分析 1 研究了对话主题对整体手势产生以及语义丰富和空手势产生的影响。在分析 2 中，研究了对话伙伴对手势产生的影响。两组在程序对话中产生的手势明显多于叙事对话。此外，PWA 和 NHP 在程序对话中产生的语义丰富手势明显更多。就对话伙伴而言，两组与不熟悉的对话伙伴相比，在与熟悉的对话伙伴的对话中产生的手势明显更多。对于所有发现，都没有组间差异，也没有组间和语境参数之间的交互作用。这些发现揭示了影响手势产生的因素，并表明两种模态都应被视为 PWA 的一种交流资源一起看待。
