ABSTRACT

Wearable camera photo review has successfully been used to enhance memory, yet very little is known about the underlying mechanisms. Here, the sequential presentation of wearable camera photos – a key feature of wearable camera photo review – is examined using behavioural and EEG measures. Twelve female participants were taken on a walking tour, stopping at a series of predefined targets, while wearing a camera that captured photographs automatically. A sequence of four photos leading to these targets was selected (∼ 200 trials) and together with control photos, these were used in a recognition task one week later. Participants’ recognition performance improved with the sequence of photos (measured in hit rates, correct rejections, & sensitivity), revealing for the first time, a positive effect of sequence of photos in wearable camera photo review. This has important implications for understanding the sequential and cumulative effects of cues on episodic remembering. An old-new ERP effect was also observed over visual regions for hits vs. correct rejections, highlighting the importance of visual processing not only for perception but also for the location of activated memory representations.

摘要

可穿戴式相机照片查看已成功用于增强记忆力，但对其基本机制了解甚少。在这里，使用行为和EEG措施检查了可穿戴式相机照片的顺序演示，这是可穿戴式相机照片审阅的关键功能。十二名女性参加者进行了徒步旅行，戴着一系列自动捕获照片的相机，在一系列预定的目标处停下来。选择了导致这些目标的四张照片序列（约200次试验），并与对照照片一起在一周后用于识别任务。参与者的识别性能随着照片序列（以命中率，正确拒绝和敏感度衡量）的提高，首次显示出来，照片序列在可穿戴式相机照片审查中的积极作用。这对于理解线索对情节记忆的顺序和累积影响具有重要意义。在视觉区域中，点击率与正确拒绝率之间也观察到了一种新的ERP效果，突出了视觉处理的重要性，不仅对于感知，而且对于激活的内存表示形式的位置。