Title: Influences of visual non-verbal information on feeling and degree of transmission in presentations

Authors: Kazuyuki Seki; Masashi Okubo

Addresses: Department of Information Engineering, Graduate School of Science and Engineering, Doshisha University, 1-3 Tatara Miyakodani, Kyotanabe City, 610-0321, Japan ' Department of Information Systems Design, Faculty of Science and Engineering, Doshisha University, 1-3 Tatara Miyakodani, Kyotanabe City, 610-0321, Japan

Abstract: It is well known that non-verbal information is important for smoothing communication. On the other hand, it is also suggested that limiting transmitted non-verbal information leads to accurate comprehension. In this research, in order to investigate the influence of visual non-verbal information in presentations on audiences' comprehension, we prepared the four videos in which the presenter was represented differently: normal, shadow, stick figure, and voice-only. Experimental participants answered questionnaires and comprehension tests after watching each presentation video. Then we verified answers from two points of view: feeling of transmission and degree of transmission. The results showed that the normal video was more highly evaluated than the other three types of videos in terms of feeling of transmission. However, the shadow video resulted in a higher degree of transmission than the other three types of videos. Furthermore, we also performed post-experiment-questionnaires and tests one week later and verified the effects of visible non-verbal information on memorability and memory retention.

Keywords: non-verbal information; communication; presentation; shadow avatar; stick figure avatar; feeling of transmission; degree of transmission; memorability; memory of transmission; comprehension; embodied communication.

DOI: 10.1504/IJDH.2018.096290

International Journal of the Digital Human, 2018 Vol.2 No.1/2, pp.70 - 83

Received: 07 Jul 2017
Accepted: 23 Apr 2018

Published online: 22 Nov 2018 *

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