Dollaghan C A, Campbell T F, Tomlin R
University of Pittsburgh, PA.
J Speech Hear Disord. 1990 Aug;55(3):582-90. doi: 10.1044/jshd.5503.582.
Video narration is a context for sampling spontaneous expressive language in which the subject produces an on-line description of the events he or she observes on videotape. Video narration offers a means of reducing the variability among language samples from different speakers, or from the same speaker over time, because the number and complexity of events to be coded linguistically is known and constant. This increased consistency facilitates comparisons among samples, as well as enabling certain analyses requiring a transparent relationship between utterances and events. Advantages and limitations of video narration as an adjunct to conversational sampling are described, and comparisons between longitudinal video narration and conversational samples obtained from brain-injured children and their matched normal controls are presented.
视频叙述是一种用于采集自发表达性语言的情境，在这种情境中，受试者要对其在录像带上观察到的事件进行即时描述。视频叙述提供了一种方法，可以减少来自不同说话者或同一说话者在不同时间的语言样本之间的变异性，因为从语言上进行编码的事件数量和复杂性是已知且恒定的。这种更高的一致性便于样本之间的比较，也有助于进行某些要求话语与事件之间具有清晰关系的分析。本文描述了视频叙述作为对话抽样辅助手段的优缺点，并呈现了对脑损伤儿童及其匹配的正常对照组进行纵向视频叙述与对话样本之间的比较。
