Related Experiment Video
Updated: Aug 13, 2025

Multimodal Protocol for Assessing Metacognition and Self-Regulation in Adults with Learning Difficulties
Published on: September 27, 2020
Learners with Low Working Memory Capacity Benefit More from the Presence of an Instructor's Face in Video Lectures
Yuyang Zhang1,2, Jing Yang3, Zhisheng Edward Wen4
1Bilingual Cognition and Development Lab, Center for Linguistics and Applied Linguistics, Guangdong University of Foreign Studies, Guangzhou 510420, China.
Abstract:
This current study explores the influence of learners' working memory capacity (WMC) on the facilitation effect of an instructor's presence during video lectures. Sixty-four undergraduates were classified into high and low WMC groups based on their performance in an operation span task. They watched three types of video lectures on unfamiliar topics in a random order: video lectures with an instructor's voiceover but without presence (VN), video lectures with the instructor's face picture (VP), and video lectures with the same instructor talking (VV). We collected their eye movement data during the video lectures and their learning performance in the comprehension tests following each video. Two-way ANOVA and post-hoc analyses showed that the instructor's presence significantly improved comprehension performance in only the low WMC group. They allocated more attention to the instructor's face picture and talking head than the high WMC group. Our results highlight the value of the instructor's presence as a social cue in video lectures, which is particularly beneficial for learners with a low WMC.
More Related Videos
10:43Eye-tracking Technology and Data-mining Techniques used for a Behavioral Analysis of Adults engaged in Learning Processes
Published on: June 10, 2021
07:36Eye Tracking During Visually Situated Language Comprehension: Flexibility and Limitations in Uncovering Visual Context Effects
Published on: November 30, 2018
Related Concept Videos
Working Memory
Cognitive Learning
E. C. Tolman's theory of purposive behavior emphasizes that much behavior is goal-directed. He argued that to understand behavior, we must look at the entire sequence of actions leading to a goal. For instance, high school students study hard, not just due to past reinforcement but also to achieve the goal of getting into a good college.
Tolman introduced the idea that behavior is influenced by...
Buffer Effectiveness
The buffer capacity is the amount of acid or base that can be added to a given volume...
Interference and Decay
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
Facial Feedback Hypothesis
Eyewitness Memory
One such error is memory distortion, which occurs because human memory does not function...