2013 年 12 巻 1 号 p. 67-75
We investigated the effects of pre-preferences for CG characters (avatar), gender of CG characters, exposure frequency, and the concordance between CG characters and the background on the impression formed about CG characters. During 8 sessions, 36 participants were shown a succession of CG characters presented against concordant or discordant backgrounds. During sessions 1, 3, 5, and 7, participants evaluated each CG character in terms of post-preference, intelligence, and reliability using a 7-point scale. Session 8 involved a delay condition. The results showed that post-preference evaluation scores in the high pre-preference condition were associated with better first impressions of CG characters, and increased with exposure frequency. However, background conformity influenced the impressions of CG characters when pre-preferences were medium or low. In addition, post-preference and reliability evaluation scores were higher for female than male characters.