Key Laboratory of Media Audio & Video, Communication University of China, Beijing, China.
State Key Laboratory of Media Convergence and Communication, Communication University of China, Beijing, China.
PLoS One. 2023 Mar 30;18(3):e0283573. doi: 10.1371/journal.pone.0283573. eCollection 2023.
Most of the existing emotion elicitation databases use the film clips as stimuli and do not take into account the age and gender differences of participants. Considering the short videos have the advantages of short in time, easy to understand and strong emotional appeal, we choose them to construct a standardized database of Chinese emotional short videos by the joint analysis of age and gender differences. Two experiments are performed to establish and validate our database. In the Experiment 1, we selected 240 stimuli from 2700 short videos and analyzed the subjective evaluation results of 360 participants with different ages and genders. As a result, a total of 54 short videos with three categories of emotions were picked out for 6 groups of participants, including the male and female respectively aged in 20-24, 25-29 and 30-34. In the Experiment 2, we recorded the EEG signals and subjective experience scores of 81 participants while watching different video stimuli. Both the results of EEG emotion recognition and subjective evaluation indicate that our database of 54 short videos can achieve better emotion elicitation effects compared with film clips. Furthermore, the targeted delivery of specific short videos has also been verified to be effective, helping the researchers choose appropriate emotional elicitation stimuli for different participants and promoting the study of individual differences in emotion responses.
大多数现有的情绪诱发数据库都使用电影片段作为刺激，而没有考虑参与者的年龄和性别差异。考虑到短视频具有时间短、易于理解和情感吸引力强的优点，我们选择它们来构建一个基于年龄和性别差异的标准化中文情感短视频数据库。通过联合分析年龄和性别差异，进行了两个实验来建立和验证我们的数据库。在实验 1 中，我们从 2700 个短视频中选择了 240 个刺激，并对 360 名不同年龄和性别的参与者的主观评估结果进行了分析。结果，为 6 组参与者（分别为 20-24 岁、25-29 岁和 30-34 岁的男性和女性）挑选出了 54 个具有三种情绪类别的短视频。在实验 2 中，我们记录了 81 名参与者观看不同视频刺激时的 EEG 信号和主观体验分数。EEG 情绪识别和主观评估的结果都表明，与电影片段相比，我们的 54 个短视频数据库可以达到更好的情绪诱发效果。此外，还验证了针对特定短视频的有针对性投放也是有效的，这有助于研究人员为不同的参与者选择合适的情绪诱发刺激，促进情绪反应个体差异的研究。
