In an emergency, journalists are on the front lines of communication as they relay breaking news to the public. Recently, news organizations promoted mobile and personal computer (desktop and laptop) applications that enable push notifications for breaking news alerts. In United States, over 60 % of adults use the Internet to watch videos (Olmstead, Mitchell, Holcomb & Vogt, 2014). Among them, 36% watch news videos (Olmstead et al., 2014). With diversification of news format, and despite their best intentions, viewers are still missing key visuals, such as push notifications and alerts (Cunningham, 2016). The current study uses Lang's (2000) Limited Capacity Model of Mediated Motivated Message Processing (LC4MP) and Lavie and Tsal's (1994) Load Theory of Attention to understand the complexities of emerging news delivery and exposure formats. This study employed a 3 (working memory load: control vs. low vs. high) x 2 (perceptual load: low vs. high) x 9 (video repetitions) x 6 (working memory load repetition) x 3 (video order) nested within-subject experimental design to investigate the effects of working memory load and perceptual load on visual attention and memory for news alerts. The study's significance stems from comparing two competing theoretical frameworks -- the LC4MP and LTA -- to assess the effectiveness of a novel news delivery format. Findings are expected to help newsmakers and sociotechnical producers better assess the value and effectiveness of innovative news delivery forms.
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机译：在紧急情况下，记者在向公众传递突发新闻时处于沟通的最前沿。最近，新闻机构推广了移动和个人计算机（台式机和笔记本电脑）应用程序，这些应用程序可以通过推送通知来突发新闻警报。在美国，超过60％的成年人使用互联网观看视频（Olmstead，Mitchell，Holcomb和Vogt，2014年）。其中，有36％的人观看新闻视频（Olmstead等，2014）。随着新闻格式的多样化，尽管他们的意图是最好的，但观众仍然缺少主要的视觉效果，例如推送通知和警报（Cunningham，2016）。当前的研究使用Lang的（2000）中介动机消息处理的有限容量模型（LC4MP）和Lavie and Tsal的（1994）注意负荷理论来理解新兴新闻传递和曝光格式的复杂性。这项研究采用了3（工作内存负载：控制vs.低vs.高）x 2（感知负载：低vs.高）x 9（视频重复）x 6（工作内存负载重复）x 3（视频顺序）嵌套受试者内部实验设计，旨在研究工作记忆负荷和知觉负荷对新闻提醒的视觉注意力和记忆的影响。这项研究的意义源于比较两种竞争的理论框架-LC4MP和LTA-来评估新型新闻发布格式的有效性。研究结果有望帮助新闻制作人和社会技术制作人更好地评估创新新闻传递形式的价值和有效性。
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