Abstract While overlap represents one of the major mainstays of conversation-analytic research, the phenomenon of overlap involving backchannels in TCU-initial position has largely gone unnoticed. This study addresses this gap focusing on backchannels occurring in overlap in storytelling interaction. The investigation combines both quantitative and qualitative methods and is based on small but representative samples drawn from the audio files available for the Narrative Corpus. The primary discovery of this study is that TCU-initial backchannel overlaps typically occur at points where the storytelling’s progressivity is decelerated, either due to delays in the backchannel’s production or to the teller interrupting the telling’s linearity to insert background information, upgrade references, or slip in digressions. An alternative environment for the occurrence of TCU-initial backchannel overlap is around the story climax. Data are in British English.

中文翻译：

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讲故事中的 TCU 初始反向通道重叠

摘要 虽然重叠是对话分析研究的主要支柱之一，但在 TCU 初始位置涉及反向通道的重叠现象在很大程度上被忽视了。这项研究解决了这一差距，重点是在讲故事互动中重叠发生的反向渠道。该调查结合了定量和定性方法，并基于从叙事语料库可用的音频文件中抽取的小而有代表性的样本。这项研究的主要发现是，TCU 初始反向通道重叠通常发生在讲故事的进展速度减慢的点，这可能是由于反向通道的制作延迟或出纳员中断讲述的线性以插入背景信息、升级参考或滑动在题外话。发生 TCU 初始反向通道重叠的另一种环境是围绕故事高潮。数据为英式英语。